Compare commits

..

305 Commits

Author SHA1 Message Date
edf8baf221 docs: update addressBook get and getMultiaddrsForPeer return values 2020-07-20 15:05:19 +02:00
7da9ad44ab fix: create dial target for peer with no known addrs (#715) 2020-07-20 14:54:03 +02:00
3896941128 docs: use tag for webrtc-star discovery config (#713) 2020-07-20 14:51:24 +02:00
856b38de67 chore: add migration guide template (#711) 2020-07-16 18:14:02 +02:00
798d7b73c1 chore: release version v0.28.7 2020-07-14 19:13:55 +02:00
f2d0d8b51d chore: update contributors 2020-07-14 19:13:54 +02:00
999c1b7740 fix: retimer reschedule does not work as interval (#710)
* fix: retimer reschedule does not work as interval

* chore: apply suggestions from code review

Co-authored-by: Jacob Heun <jacobheun@gmail.com>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-07-14 19:11:29 +02:00
99ff361a55 chore: release version v0.28.6 2020-07-14 16:13:00 +02:00
6115f8b680 chore: update contributors 2020-07-14 16:12:59 +02:00
9ccab40fc8 fix: not dial all known peers in parallel on startup (#698)
* fix: not dial all known peers on startup

* feat: connection manager should proactively connect to peers from peerStore

* chore: increase bundle size

* fix: do connMgr proactive dial on an interval

* chore: address review

* chore: use retimer reschedule

* chore: address review

* fix: use minConnections in default config

* chore: minPeers to minConnections everywhere
2020-07-14 16:05:26 +02:00
619e5dd73c chore: release version v0.28.5 2020-07-10 17:26:21 +02:00
0fd23f6a5f chore: update contributors 2020-07-10 17:26:21 +02:00
5a84dd56d0 fix: pass libp2p to the dht (#700) 2020-07-10 17:16:45 +02:00
7b05d6922b docs: add dht discovery documentation reference (#697)
Extended the description with a link for how to configure the libp2p-kad-dht for peer discovery.
2020-07-08 15:03:56 +02:00
08a4fad80b chore: add modules to update in 0.28.x migration (#695) 2020-07-08 14:12:40 +02:00
51da8874d8 test: add pubsub reconnect test (#693)
* test: add pubsub reconnect test

* chore: dep bump

* chore: remove temp pubsub dep

Co-authored-by: Vasco Santos <vasco.santos@moxy.studio>

Co-authored-by: Vasco Santos <vasco.santos@moxy.studio>
2020-07-07 18:31:51 +02:00
5cd8c19567 docs(fix): update link to ipfs config files (#690) 2020-07-07 12:56:17 +02:00
db766eaca9 chore: update circuit readme (#689)
* chore: update circuit readme

* chore: address review
2020-07-07 12:55:52 +02:00
a1308d640d chore: release version v0.28.4 2020-07-03 16:14:47 +02:00
19e7254c3d chore: update contributors 2020-07-03 16:14:47 +02:00
f4898eb883 chore: add test for pubsub on reconnect (#691)
* chore: add test for pubsub on reconnect

* chore: update interface dep

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-07-03 16:08:37 +02:00
9bec719fce docs(fix): link to streaming-iterables' repo (#688) 2020-07-02 13:34:01 +02:00
b664c0aafd chore: libp2p in the browser using webrtc servers (#684) 2020-06-29 16:31:07 +02:00
b524bbf627 chore: release version v0.28.3 2020-06-18 15:40:38 +02:00
07bd269fb0 chore: update contributors 2020-06-18 15:40:38 +02:00
a8219e61a0 fix: catch pipe errors (#678)
* fix: catch pipe errors

There were some pipe errors not being caught. This can result in unhandled exceptions being thrown

* fix: catch pipe errors in identify push handler
2020-06-18 15:33:08 +02:00
a1590acc8b chore: add libp2p docs website to release checklist 2020-06-18 11:48:31 +02:00
a0cf83c640 chore: release version v0.28.2 2020-06-15 12:48:25 +02:00
b56cdda0ef chore: update contributors 2020-06-15 12:48:25 +02:00
b621fbdfdc revert: "fix: throw if no conn encryption module provided (#665)"
This reverts commit c038550fad.
2020-06-15 12:45:49 +02:00
24dd1d22c5 chore: release version v0.28.1 2020-06-12 16:48:30 +02:00
a1a1213bdc chore: update contributors 2020-06-12 16:48:29 +02:00
90a9d93968 chore: refactor ConnectionManager#get 2020-06-11 16:21:51 +02:00
8f680e20e9 feat: add ConnectionManager#getAll 2020-06-11 16:21:51 +02:00
afafd08943 chore: fix discv5 npm link
chore: update package name for discv5
2020-06-11 13:03:31 +02:00
c038550fad fix: throw if no conn encryption module provided (#665)
* fix: throw if no conn encryption module provided

* chore: address review

* chore: apply suggestions from code review

Co-authored-by: Jacob Heun <jacobheun@gmail.com>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-06-11 12:49:32 +02:00
d60a3215d0 chore: update interface datastore (#663)
* chore: update interface datastore

Updates to v1.x.x to not have multiple versions of this module in the ipfs browser bundle.

* fix: let batch commits complete before continuing tests

Batch commits are async but the tests weren't waiting for them to complete,
mainly because they are triggered by events.

There's no way that I can see of waiting for the batch commit to finish so
I've added delays to the tests. Not great but a start.

* chore: use error log

* test: wait for commit spies to complete

* chore: bump interface-datastore

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-06-10 23:39:40 +02:00
1e51295150 chore: use interop release 2020-06-08 12:20:48 +02:00
5299995998 chore: release version v0.28.0 2020-06-05 15:32:03 +02:00
64a66f08ac chore: update contributors 2020-06-05 15:32:03 +02:00
e2a63bab62 chore: release version v0.28.0-rc.0 2020-05-28 12:52:25 +02:00
294b032b0b chore: update contributors 2020-05-28 12:52:24 +02:00
72f37acd4a fix: always emit when a connection is made 2020-05-28 12:37:48 +02:00
52a615f922 fix: expose the muxed stream interface on inbound streams 2020-05-28 12:37:48 +02:00
698c1df1b4 feat: support dial only on transport manager to tolerate errors (#643)
* feat: support dial only on transport manager to tolerate errors

* chore: address review

* chore: add jsdoc to transport manager tolerance errors
2020-05-28 12:37:48 +02:00
7f4662f8d8 chore: fix api formatting (#644) 2020-05-28 12:37:48 +02:00
84b935f682 feat: metadata book (#638)
* feat: metadata book

* chore: address review

* chore: address review
2020-05-28 12:37:48 +02:00
0fbb59748e docs: update examples to 0.28.x api (#625)
* chore: update examples to 0.28 api

* chore: use libp2p-noise in examples

* chore: examples using multiaddrs property of libp2p

Co-authored-by: Jacob Heun <jacobheun@gmail.com>

* docs: update language around secio in crypto example

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
56316b8c1e docs: migration 0.27 to 0.28 (#637)
* docs: migration 0.27 to 0.28

* chore: apply suggestions from code review

Co-authored-by: Jacob Heun <jacobheun@gmail.com>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
aaa1155633 chore: uncomment local peer public key after connect test 2020-05-28 12:37:48 +02:00
aa5e232479 chore: rewrite peer-store submit and retrieve docs (#605)
* chore: rewrite peer-store submit and retrieve docs

* chore: address review
2020-05-28 12:37:48 +02:00
eb7adcf1ab docs: libp2p components options specified 2020-05-28 12:37:48 +02:00
0be74e6a61 chore: apply suggestions from code review
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
6065923356 chore: integrate libp2p-keychain into js-libp2p (#633)
Integrates the libp2p-keychain codebase into this repo
2020-05-28 12:37:48 +02:00
2b45fee0ed fix: onConnect should not add addr to the addressBook 2020-05-28 12:37:48 +02:00
8bf5a70bb8 chore: integrate libp2p-keychain into js-libp2p (#633)
Integrates the libp2p-keychain codebase into this repo

Co-authored-by: David Dias <daviddias.p@gmail.com>
Co-authored-by: Richard Schneider <makaretu@gmail.com>
Co-authored-by: Maciej Krüger <mkg20001@gmail.com>
Co-authored-by: Victor Bjelkholm <victorbjelkholm@gmail.com>
Co-authored-by: Masahiro Saito <camelmasa@gmail.com>
Co-authored-by: Alan Shaw <alan.shaw@protocol.ai>
Co-authored-by: Hugo Dias <mail@hugodias.me>
Co-authored-by: Alberto Elias <hi@albertoelias.me>
Co-authored-by: Alex Potsides <alex@achingbrain.net>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
6627278a87 chore: apply suggestions from code review
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
65e87460b0 chore: add keys to keybook on connection upgraded 2020-05-28 12:37:48 +02:00
7b8d01697d chore: apply suggestions from code review
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
ce38033c10 feat: keybook 2020-05-28 12:37:48 +02:00
3f2b06dc26 chore: remove peer-info from package table 2020-05-28 12:37:48 +02:00
1e3d6f4b56 chore: apply suggestions from code review
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
48a9a3eecc refactor: peristent peer-store extended class and disabled by defaul 2020-05-28 12:37:48 +02:00
9ea9287bea chore: persist delete with test 2020-05-28 12:37:48 +02:00
5123a8357b feat: peerStore persistence 2020-05-28 12:37:48 +02:00
43630f1e0b test: use libp2p-noise (#585)
* chore: use libp2p-noise

* chore: address review
2020-05-28 12:37:48 +02:00
aaf62a40ec fix: libp2p connections getter 2020-05-28 12:37:48 +02:00
7fbd1556e8 fix: use libp2p.multiaddrs instead of listen
Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
51474c334a chore: rename address functions and apply suggestions from code review
Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
d75cc97ced chore: update api docs 2020-05-28 12:37:48 +02:00
2a7967c1cc feat: address manager 2020-05-28 12:37:48 +02:00
9e9ec0b575 chore: apply suggestions from code review
Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
d3a4bf0a3f chore: refactor connection manager and registrar 2020-05-28 12:37:48 +02:00
d33919d0b3 chore: use kad-dht with renamed peer-store properties 2020-05-28 12:37:48 +02:00
c215339a27 chore: rename peer-store properties 2020-05-28 12:37:48 +02:00
cb597b57d7 chore: apply suggestions from code review
Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
12e48adafa chore: remove peer-info usage
BREAKING CHANGE: all API methods with peer-info parameters or return values were changed. You can check the API.md document, in order to check the new values to use
2020-05-28 12:37:48 +02:00
ed6d5bb4b4 chore: deprecate old peer store api (#598)
* chore: deprecate old peer-store api

BREAKING CHANGE: the peer-store api changed. Check the API docs for the new specification.

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
e9d225c9dc feat: address and proto books (#590)
* feat: address and proto books

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: minor fixes and initial tests added

* chore: integrate new peer-store with code using adapters for other modules

* chore: do not use peerstore.put on get-peer-info

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: add new peer store tests

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-05-28 12:37:48 +02:00
2aac3b0f69 chore: update libp2p-gossipsub url 2020-05-27 23:14:54 +02:00
9862653051 chore: add readme reference to migrations 2020-05-25 14:54:03 +02:00
b781911ac2 fix(example): rename misleading variable (#645)
* fix(example): rename misleading variable

* fix: typo
2020-05-25 13:14:07 +02:00
3fa1fa3a0b chore: increase max bundle size to 185kB 2020-05-11 11:00:13 +02:00
dfed982404 chore(deps-dev): bump libp2p-gossipsub from 0.2.6 to 0.3.0
Bumps [libp2p-gossipsub](https://github.com/ChainSafe/gossipsub-js) from 0.2.6 to 0.3.0.
- [Release notes](https://github.com/ChainSafe/gossipsub-js/releases)
- [Changelog](https://github.com/ChainSafe/gossipsub-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ChainSafe/gossipsub-js/compare/v0.2.6...v0.3.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-05-11 11:00:13 +02:00
60b6a55906 chore(deps-dev): bump aegir from 21.10.2 to 22.0.0 (#632)
Bumps [aegir](https://github.com/ipfs/aegir) from 21.10.2 to 22.0.0.
- [Release notes](https://github.com/ipfs/aegir/releases)
- [Changelog](https://github.com/ipfs/aegir/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ipfs/aegir/compare/v21.10.2...v22.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
2020-05-08 10:52:49 +02:00
aadeb73c94 chore: release version v0.27.8 2020-05-06 13:21:55 +02:00
ea6b1ecce4 chore: update contributors 2020-05-06 13:21:54 +02:00
d3ab238738 chore: update aegir 2020-05-05 20:08:45 +02:00
97455957ac chore: remove wrtc devdep (#624) 2020-04-30 12:00:50 +02:00
5255d87d0a docs: remove Tech Lead from README (#623) 2020-04-30 11:51:21 +02:00
03ce7c3103 chore(deps-dev): bump p-times from 2.1.0 to 3.0.0 (#620)
Bumps [p-times](https://github.com/sindresorhus/p-times) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/sindresorhus/p-times/releases)
- [Commits](https://github.com/sindresorhus/p-times/compare/v2.1.0...v3.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
2020-04-28 13:16:41 +02:00
ea0621b2f6 fix: reset discovery services upon stop (#618) 2020-04-27 12:07:30 +02:00
9197df309b chore: release version v0.27.7 2020-04-24 17:38:32 +02:00
8dd361338b chore: update contributors 2020-04-24 17:38:32 +02:00
9b13fe321a fix: remove node global (#587)
* fix: use new libp2p-crypto

* fix: remove node globals and reduce size

- adds buffer require
- adds globalThis where needed
- streaming-iterables was remove and new utils created, this will be consolidated in `ipfs-utils` and backported here to normalize all these iterator helper functions
- latency-monitor was copied inside the repo
- iso-random-stream is now used instead of node crypto
- the test `should ignore self on discovery` was moved to node only

Size: 172.97KB
47.03KB below the 220KB limit.

`aegir build --node false` and `aegir test -t browser --node false` now work 🎉

* fix: fix require path

* fix: feedback

* fix: update deps and bundle size

* chore: bump interfaces

* chore: update size
2020-04-24 17:10:40 +02:00
1f85e0213a chore: release version v0.27.6 2020-04-16 16:35:01 +02:00
09a604b5e5 chore: update contributors 2020-04-16 16:35:01 +02:00
ed16b69057 chore: update delegate routing deps to fix branches (#609)
* chore: update delegate routing deps to fix branches

* chore: bump delegate router versions
2020-04-16 15:48:13 +02:00
c940f2d384 fix: add null check in libp2p.hangUp()
test: add hangup test and fix linting
2020-04-15 14:49:47 +02:00
2620d46f01 chore: remove spdy from package table (#607) 2020-04-14 12:40:03 +02:00
e192eb6508 fix: make circuit relay listening addresses more forgiving (#604)
* test: dont be strict on nock mocking

* fix: be more forgiving with circuit listening addresses
2020-04-14 12:37:52 +02:00
b57de4ed0c chore: add discv5 peer-discovery module (#606) 2020-04-14 10:51:29 +02:00
760d8b4c3a chore: release version v0.27.5 2020-04-06 13:33:08 +02:00
7b56f559cb chore: update contributors 2020-04-06 13:33:08 +02:00
0fd5188176 test: dont use mdns in browser tests (#602)
* test(fix): dont use mdns in browser tests

* refactor: use async await consistently for _setupPeerDiscovery
2020-04-06 13:22:12 +02:00
bd7fd0f755 fix: await peer discovery start in libp2p start (#600) 2020-04-06 12:32:12 +02:00
da83721d6d chore: release version v0.27.4 2020-03-31 13:47:41 +02:00
1414e45969 chore: update contributors 2020-03-31 13:47:41 +02:00
9e35fbc316 fix: pass libp2p to discovery services (#597)
* fix: include libp2p in the options passed to discovery creation

* fix: handle multiple peer addresses in get multiaddrs for peers

* test(peer-store): add test to verify returned relay multiaddrs
2020-03-31 13:43:27 +02:00
30728753cf fix: only use a single export (#596) 2020-03-31 13:01:06 +02:00
afdbe3deac chore(deps-dev): bump cids from 0.7.5 to 0.8.0 (#594)
Bumps [cids](https://github.com/multiformats/js-cid) from 0.7.5 to 0.8.0.
- [Release notes](https://github.com/multiformats/js-cid/releases)
- [Changelog](https://github.com/multiformats/js-cid/blob/master/CHANGELOG.md)
- [Commits](https://github.com/multiformats/js-cid/compare/v0.7.5...v0.8.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>
2020-03-26 09:08:13 +01:00
ce58805e90 chore(deps): bump p-settle from 3.1.0 to 4.0.0 (#581)
Bumps [p-settle](https://github.com/sindresorhus/p-settle) from 3.1.0 to 4.0.0.
- [Release notes](https://github.com/sindresorhus/p-settle/releases)
- [Commits](https://github.com/sindresorhus/p-settle/compare/v3.1.0...v4.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-03-05 18:12:58 +01:00
b5303fd788 chore: add outdated notice on wip delegated-routing-example (#580) 2020-03-05 18:05:57 +01:00
aa78d2ef15 Update README.md 2020-03-05 11:16:34 +01:00
5a4641980d chore: remove websocket star from package table (#565)
* chore: remove websocket star from package table

* chore: update package-table

* chore: remove not active modules

* chore: use package-table updated with correct ci badge url
2020-03-04 11:24:39 +01:00
f4ec35573e fix(test): improve flakey random walk discovery test (#574)
* test: improve stability of dht discovery test

* test: isolate who is random walking
2020-02-28 15:30:43 +01:00
524e6f8433 chore: issue template mentioning js-libp2p (#572) 2020-02-26 17:12:44 +01:00
fad9cb22e0 chore(deps): bump p-any from 2.1.0 to 3.0.0 (#570)
Bumps [p-any](https://github.com/sindresorhus/p-any) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/sindresorhus/p-any/releases)
- [Commits](https://github.com/sindresorhus/p-any/compare/v2.1.0...v3.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-26 11:23:26 +01:00
e1b158fbb9 chore(deps-dev): bump sinon from 8.1.1 to 9.0.0 (#566)
Bumps [sinon](https://github.com/sinonjs/sinon) from 8.1.1 to 9.0.0.
- [Release notes](https://github.com/sinonjs/sinon/releases)
- [Changelog](https://github.com/sinonjs/sinon/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sinonjs/sinon/compare/v8.1.1...v9.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-26 11:10:34 +01:00
1837d6e95e chore(deps-dev): bump aegir from 20.6.1 to 21.3.0 (#567)
Bumps [aegir](https://github.com/ipfs/aegir) from 20.6.1 to 21.3.0.
- [Release notes](https://github.com/ipfs/aegir/releases)
- [Changelog](https://github.com/ipfs/aegir/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ipfs/aegir/compare/v20.6.1...v21.3.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-26 10:58:46 +01:00
4bce6aa0b9 chore: use libp2p utils (#559)
* chore: use libp2p utils

* chore: update libp2p-utils
2020-02-18 07:45:26 -05:00
4d11edd62c chore(deps-dev): bump nock from 11.9.1 to 12.0.0
Bumps [nock](https://github.com/nock/nock) from 11.9.1 to 12.0.0.
- [Release notes](https://github.com/nock/nock/releases)
- [Changelog](https://github.com/nock/nock/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nock/nock/compare/v11.9.1...v12.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-18 07:44:45 -05:00
a8984c6cd3 fix: remove use of assert module (#561)
* fix: remove use of assert module

The polyfill is big, we can simulate it by throwing an Error and it doesn't work under React Native.

* chore: fix linting

* chore: export invalid param code

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-02-14 14:42:23 +01:00
0882dcea3b chore: release version v0.27.3 2020-02-11 17:15:59 +01:00
b3d8132ea6 chore: update contributors 2020-02-11 17:15:59 +01:00
a317a8b011 fix: dont allow multiaddr dials without a peer id (#558)
* fix: require peer ids when dialing multiaddrs

* chore: fix lint

* docs: add more info about multiaddr peer ids
2020-02-11 16:32:40 +01:00
8bed8f39ff chore: release version v0.27.2 2020-02-05 17:46:41 +01:00
58c0c7c03e chore: update contributors 2020-02-05 17:46:41 +01:00
f662fdcf36 fix: ensure identify streams are closed (#551)
* fix: ensure identify streams are closed

* fix: call connection.addStream properly

* chore: simplify stream closure

* test: improve durability of identify push test
2020-02-05 17:35:27 +01:00
5608178247 test: add interop tests job in ci (#526)
* chore: interop tests in ci

* chore: address review

* chore: use interop release
2020-02-05 12:01:46 +01:00
dcd58693f5 chore(deps): bump err-code from 1.1.2 to 2.0.0
Bumps [err-code](https://github.com/IndigoUnited/js-err-code) from 1.1.2 to 2.0.0.
- [Release notes](https://github.com/IndigoUnited/js-err-code/releases)
- [Commits](https://github.com/IndigoUnited/js-err-code/compare/1.1.2...v2.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-05 11:59:34 +01:00
8bf05e6db6 chore(deps-dev): bump abortable-iterator from 2.1.0 to 3.0.0
Bumps [abortable-iterator](https://github.com/alanshaw/abortable-iterator) from 2.1.0 to 3.0.0.
- [Release notes](https://github.com/alanshaw/abortable-iterator/releases)
- [Commits](https://github.com/alanshaw/abortable-iterator/compare/v2.1.0...v3.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-05 11:58:58 +01:00
0589d53616 chore(deps-dev): bump nock from 10.0.6 to 11.7.2
Bumps [nock](https://github.com/nock/nock) from 10.0.6 to 11.7.2.
- [Release notes](https://github.com/nock/nock/releases)
- [Changelog](https://github.com/nock/nock/blob/master/CHANGELOG.md)
- [Commits](https://github.com/nock/nock/compare/v10.0.6...v11.7.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
2020-02-05 11:58:38 +01:00
eb2528c1d6 docs: fix chat url (#550) 2020-02-05 11:58:04 +01:00
141cf90ca0 chore: remove pdd test stories (#546) 2020-02-04 11:52:23 +01:00
f4ec459a7b chore: release version v0.27.1 2020-02-03 15:55:46 +01:00
56a7842664 chore: update contributors 2020-02-03 15:55:45 +01:00
be8fc9daf1 fix: stop stream after first pong received (#545)
When connecting to go-IPFS from a webworker, the stream opened by
the ping protocol is never closed.

The change here uses `take` to only receive one buffer from the
remote node before closing the stream.
2020-02-03 15:50:40 +01:00
f39e8f0da9 docs: add migration guide from 0.26 to 0.27 (#543)
* docs: add migration guide from 0.26 to 0.27

* docs(fix): relative links

* chore(docs): apply suggestions from code review

* chore: apply review suggestions

* chore: remove unwanted log
2020-01-30 13:03:15 +01:00
ed0c2cb6c1 docs: redirect to the npm docs for latest release (#541)
* docs: redirect to the npm docs for latest release

* Apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-01-29 15:53:57 +01:00
c6592c5797 docs: fix api link formatting (#542) 2020-01-28 18:55:37 +01:00
33cef10721 chore: release version v0.27.0 2020-01-28 13:06:11 +01:00
2d6408eb30 chore: update contributors 2020-01-28 13:06:11 +01:00
29a96690ad test(fix): fix listening test for ci 2020-01-24 14:40:40 +01:00
8b94cd1e2e chore: release version v0.27.0-rc.0 2020-01-24 14:40:40 +01:00
b83880765f chore: update contributors 2020-01-24 14:40:40 +01:00
560d7084fe refactor: examples-browser (#508)
* refactor: examples-browser

* chore: add information to use signalling server

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: update deps

* docs: refactor libp2p browser example

* docs(examples): add back websockets and boostrap nodes

docs(examples): redo the browser readme

* fix: handle edge case of connections closing early

* chore: fix lint

* chore: update example deps and readme

* chore: update webrtc-star

* chore: apply suggestions from code review

Co-Authored-By: Alan Shaw <alan.shaw@protocol.ai>

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Alan Shaw <alan.shaw@protocol.ai>
2020-01-24 14:40:40 +01:00
d21b7ce4ff docs: getting started (#514)
* docs: getting started

* docs: review getting started (#520)

* doc: initial review of getting started

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>

* chore: move multiplexing to basic setup

* chore: add read more cta

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: just configure multiplexer

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: just use websockets and changed dht module introduction

* chore: add reference for events in the API doc

* docs: simplify getting started guide and clean up language

* chore: apply suggestions from code review

Co-Authored-By: Alan Shaw <alan.shaw@protocol.ai>

* docs(fix): address review comments

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Alan Shaw <alan.shaw@protocol.ai>
2020-01-24 14:40:40 +01:00
c1038bec92 fix: use toB58String everywhere to be consistent (#537)
* chore: update deps

* fix: consistently use b58 peerid string

The migration to base32 will happen at a later date
2020-01-24 14:40:40 +01:00
bb2e56e6c7 fix: registrar should filter the disconnected conn (#532)
* fix: registrar on disconnect only when no connections

* chore: add test
2020-01-24 14:40:40 +01:00
4222c49556 fix: stop discoveries (#530)
* fix: stop discoveries

* test: add discovery stop test

* chore: fix lint

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
2f2ba420ef chore: release version v0.27.0-pre.2 2020-01-24 14:40:40 +01:00
e9d16ba190 chore: update contributors 2020-01-24 14:40:40 +01:00
afb552c063 refactor: examples transports (#503)
* refactor: examples-transports

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* chore: address review

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
721151b9fc refactor: examples/pnet (#523)
* refactor: examples/pnet

* chore: rename pnet-ipfs to pnet

* chore: address review
2020-01-24 14:40:40 +01:00
efc96c2f19 refactor: examples/discovery-mechanisms (#498)
* refactor: examples-discovery-mechanisms

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: suggestion interval

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: add peer connected event

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
ba4681b312 fix: conn mngr min/max connection values (#528)
Fixes the case when options are passed with `maxConnections` and/or `minConnections` set to `undefined`:

```console
{
  defaultOptions: {
    maxConnections: Infinity,
    minConnections: 0,
    maxData: Infinity,
    maxSentData: Infinity,
    maxReceivedData: Infinity,
    maxEventLoopDelay: Infinity,
    pollInterval: 2000,
    movingAverageInterval: 60000,
    defaultPeerValue: 1
  },
  options: {
    minPeers: 25,
    maxConnections: undefined,
    minConnections: undefined
  }
}
{ maxConnections: undefined, minConnections: undefined }
      1) "before all" hook in "custom config"
(node:67176) UnhandledPromiseRejectionWarning: AssertionError [ERR_ASSERTION]: Connection Manager maxConnections must be greater than minConnections
    at new ConnectionManager (node_modules/libp2p/src/connection-manager/index.js:43:5)
    at new Libp2p (node_modules/libp2p/src/index.js:92:30)
    at Object.module.exports [as libp2p] (src/core/components/libp2p.js:27:10)
    at Proxy.start (src/core/components/start.js:48:31)
    at async Daemon.start (src/cli/daemon.js:63:31)
    at async startHttpAPI (test/http-api/routes.js:29:5)
    at async Context.<anonymous> (test/http-api/routes.js:48:7)
```
2020-01-24 14:40:40 +01:00
6b00eeab0a refactor: examples/protocol-and-stream-muxing (#502) 2020-01-24 14:40:40 +01:00
c339be10ee feat: allow transport options to be passed on creation (#524)
* feat: allow transport options to be passed on creation

* fix: only add circuit transport if enabled

* chore: fix lint
2020-01-24 14:40:40 +01:00
7b326cc525 refactor: examples/peer-and-content-routing (#500)
* refactor: examples-peer-and-content-routing

* chore: address review

* chore: review suggestions

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
835a689965 refactor: examples/encrypted-communications (#499)
* refactor: examples/encrypted-communications

* chore: address review
2020-01-24 14:40:40 +01:00
b08d81cee7 refactor: examples-pubsub (#504) 2020-01-24 14:40:40 +01:00
6445fda050 feat: add libp2p.connections getter (#522)
* fix: make hangup accept what the API says it does

* feat: add libp2p.connections getter

* chore: fix typo
2020-01-24 14:40:40 +01:00
4ca481b869 fix: make dialer configurable (#521)
docs: update configuration and api docs
2020-01-24 14:40:40 +01:00
5d7ee50e76 fix: upgrader should not need muxers (#517)
* fix: upgrader should not need muxers

* chore: address review

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
48fd64182b chore: release version v0.27.0-pre.1 2020-01-24 14:40:40 +01:00
58db09a9d3 chore: update contributors 2020-01-24 14:40:40 +01:00
15f7c2a974 feat: coalescing dial support (#518)
* docs: fix spelling in api

* fix: dont create peerstore twice

* feat: add support for dial coalescing

* doc(fix): add setPeerValue to API TOC

* docs: add more jsdocs to dialer

* chore: remove old comment

* fix: ensure connections are closed

* fix: registrar.getConnections returns first open conn

* fix: directly set the closed status

* chore: remove unneeded log

* refactor: peerStore.put takes an options object
2020-01-24 14:40:40 +01:00
4384d139d2 docs: add ToC link to pubsub.unsubscribe 2020-01-24 14:40:40 +01:00
bd1068e5d9 docs: fix the ToC links (#515) 2020-01-24 14:40:40 +01:00
854ac49a10 chore: update readme (#513) 2020-01-24 14:40:40 +01:00
f9d0047bf6 chore: release version v0.27.0-pre.0 2020-01-24 14:40:40 +01:00
ae5ce9a66f chore: update contributors 2020-01-24 14:40:40 +01:00
14a1955a78 refactor: connection manager (#511)
* refactor: initial refactor of the connection manager

* fix: start/stop issues

* fix: add tests and resolve pruning issues

* chore: fix lint

* test: move conn manager tests to node only for now

* chore: apply suggestions from code review

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>

* fix: assert min max connection options

* test: fix assertion check for browser

* docs: add api and config docs for conn manager
2020-01-24 14:40:40 +01:00
f1eb373235 feat: discovery modules from transports should be added (#510)
* feat: discovery modules from transports should be added

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
dabee00127 refactor: stats (#501)
* docs: add initial notes on stats

* feat: initial refactor of stats to metrics

* feat: add support for placeholder metrics

This is helpful for tracking metrics prior to knowing the remote peers id

* fix: add metrics tests and fix issues

* fix: always clear the dial timeout timer

* docs: add metrics to api doc

* chore: apply suggestions from code review

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>

* docs: update metrics docs

* fix: call metrics.onDisconnect

* docs(config): add example headers so they appear in the TOC

* docs(config): add metrics configuration

* docs(relay): fix relay configuration docs
2020-01-24 14:40:40 +01:00
17b6a3fd73 docs: config (#495)
* docs: new api

* chore: new iteration

* chore: apply suggestions from code review

Co-Authored-By: Alan Shaw <alan.shaw@protocol.ai>

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* docs: add events

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* docs: configuration

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: update peer routing description

Co-Authored-By: Yusef Napora <yusef@protocol.ai>

* chore: decouple examples

* chore: address pr comment

* fix: connection encryption is required

* chore: apply review suggestion

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
4f7586886c refactor: ping (#505)
* refactor: ping

* chore: ping is now a function

* chore: address review
2020-01-24 14:40:40 +01:00
71f46bf4a6 chore: it-all over async-iterator-all 2020-01-24 14:40:40 +01:00
cba035a75b chore: add bundlesize check back to ci 2020-01-24 14:40:40 +01:00
2c5183bd70 chore: remove uneeded dep check exclusions 2020-01-24 14:40:40 +01:00
a586efb5f7 chore: disable pull dep check until ping is refactored 2020-01-24 14:40:40 +01:00
1db69c5f27 chore: remove unused packages 2020-01-24 14:40:40 +01:00
9e1a9f04ae chore: move stats folder and delete old switch code 2020-01-24 14:40:40 +01:00
287f1b98e5 docs: new api (#472)
* docs: new api

* chore: new iteration

* chore: apply suggestions from code review

Co-Authored-By: Alan Shaw <alan.shaw@protocol.ai>

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* docs: add events

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
90ecc57dbc fix: token release logic 2020-01-24 14:40:40 +01:00
ae52d483fc test: bump delay for ci 2020-01-24 14:40:40 +01:00
2570a1ba30 fix: release tokens as soon as they are available 2020-01-24 14:40:40 +01:00
633b0c291f fix: clean up pending dials abort per feedback 2020-01-24 14:40:40 +01:00
7d505494be docs: add DialRequest description 2020-01-24 14:40:40 +01:00
1df52ae205 test: remove timeout 2020-01-24 14:40:40 +01:00
ba02764c5f feat: abort all pending dials on stop 2020-01-24 14:40:40 +01:00
404fa69513 test: reduce randomwalk timeout 2020-01-24 14:40:40 +01:00
85988cfaab chore: fix lint
test: reduce interval of randomwalk in test

chore(test): glob fix
2020-01-24 14:40:40 +01:00
def3574ba0 test: add tests for DialRequest 2020-01-24 14:40:40 +01:00
6b1da8326f test(fix): fix support for it.only, it.skip, etc 2020-01-24 14:40:40 +01:00
a12006a4fa docs(release): point to libp2p weekly sync 2020-01-24 14:40:40 +01:00
466b4dfd70 chore: update per feedback 2020-01-24 14:40:40 +01:00
98e82df5e1 refactor: cleanup and reorganize 2020-01-24 14:40:40 +01:00
6ad840c3f3 chore: update docs
fix: protect against duplicate token releases
2020-01-24 14:40:40 +01:00
7ac5e42a1a chore: fix linting 2020-01-24 14:40:40 +01:00
b86ef64904 refactor: consolidation multiaddr dial methods 2020-01-24 14:40:40 +01:00
b6cd48b798 refactor: clean up dial timeout abort 2020-01-24 14:40:40 +01:00
a5b54a7017 feat: add early token recycling in 2020-01-24 14:40:40 +01:00
e1e3be8106 refactor: simplify DialRequest logic per feedback 2020-01-24 14:40:40 +01:00
b7432bd02b chore: use any-signal module 2020-01-24 14:40:40 +01:00
7c2fefda46 refactor: PER_PEER_LIMIT is now MAX_PER_PEER_DIALS 2020-01-24 14:40:40 +01:00
2788982c53 chore: apply suggestions from code review
Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>
Co-Authored-By: Alan Shaw <alan.shaw@protocol.ai>
2020-01-24 14:40:40 +01:00
76ec1ccd21 chore: remove commented code 2020-01-24 14:40:40 +01:00
e445a17278 feat: add token based dialer 2020-01-24 14:40:40 +01:00
2329ef3ea3 doc: add initial dialer readme 2020-01-24 14:40:40 +01:00
ce8e60bb0d fix: correct release readme 2020-01-24 14:40:40 +01:00
12fc069873 fix: clean up peer discovery flow (#494)
* fix: clean up peer discovery flow

* test(fix): let libp2p start after connecting

* test(fix): dont auto dial in disco tests
2020-01-24 14:40:40 +01:00
9a6e07d70b chore: update pubsub implementations (#493) 2020-01-24 14:40:40 +01:00
8da9fc97d4 feat: support peer-id instances in peer store operations (#491) 2020-01-24 14:40:40 +01:00
a020db183a refactor: async routing (#489)
* feat: async routing

* chore: put dht extra api commands under content routing

* chore: add default option to createPeerInfo

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* chore: rm dlv
2020-01-24 14:40:40 +01:00
f77ce39484 refactor: circuit relay to async (#477)
* refactor: add dialing over relay support

* chore: fix lint

* fix: dont clear listeners on close

* fix: if dial errors already have codes, just rethrow them

* fix: clear the registrar when libp2p stops

* fix: improve connection maintenance with circuit

* chore: correct feedback

* test: use chai as promised

* test(fix): reset multiaddrs on dial test
2020-01-24 14:40:40 +01:00
18a062ed12 feat: discovery modules (#486)
* feat: discovery modules

* chore: address review
2020-01-24 14:40:40 +01:00
1999606ecc fix: replace peerInfo addresses with listen addresses (#485)
* feat: replace peer info addresses with listen addresses

* test: add listening test

* chore: fix linting
2020-01-24 14:40:40 +01:00
472e14f2b4 refactor(docs): async await version of examples/chat (#482)
* fix: performance bottleneck in stat.js (#463)

Array.shift seems to be very slow, perhaps linear, on some
engines, resulting in  _update consuming a lot of CPU.

* docs(fix): correct docs and example for pnet (#464)

* docs(fix): correct docs and example for pnet

* docs(fix): correct pnet docs

* docs(fix): update README.md language (#468)

* docs: reciprocate (#474)

* docs(example): fix ipfs cat (#475)

`ipfs.files.cat` is incorrect. the correct function is `ipfs.cat`

* fix: async-await example chat

* fix: move handler before start

* fix: examples readme typos (#481)

* fix: simplify libp2p bundle for echo example

* chore: remove unused vars
2020-01-24 14:40:40 +01:00
953d185c39 refactor(docs): async await version of examples/echo (#483)
* fix: performance bottleneck in stat.js (#463)

Array.shift seems to be very slow, perhaps linear, on some
engines, resulting in  _update consuming a lot of CPU.

* docs(fix): correct docs and example for pnet (#464)

* docs(fix): correct docs and example for pnet

* docs(fix): correct pnet docs

* docs(fix): update README.md language (#468)

* docs: reciprocate (#474)

* docs(example): fix ipfs cat (#475)

`ipfs.files.cat` is incorrect. the correct function is `ipfs.cat`

* fix: async await examples/echo

* fix: examples readme typos (#481)

* fix: simplify libp2p bundle for echo example
2020-01-24 14:40:40 +01:00
c563e06a60 refactor: dht async/await (#480)
* refactor: core async (#478)

* refactor: cleanup core

test: auto dial on startup

* fix: make hangup work properly

* chore: fix lint

* chore: apply suggestions from code review

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>

* fix: provide libp2p dialer to the dht

* chore: use dht release
2020-01-24 14:40:40 +01:00
f28b09fc0d refactor: update secio and tests to use it (#484)
* refactor: use async secio

* test: add secio to most test suites

* chore: update secio version
2020-01-24 14:40:40 +01:00
2104578924 refactor: core async (#478)
* refactor: cleanup core

test: auto dial on startup

* fix: make hangup work properly

* chore: fix lint

* chore: apply suggestions from code review

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>
2020-01-24 14:40:40 +01:00
bcad60995e chore: use gossipsub release (#479) 2020-01-24 14:40:40 +01:00
432b0997ae refactor: pubsub (#467)
* feat: peer-store v0

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* refactor: pubsub subsystem

* chore: address review

* chore: use topology interface

* chore: address review

* chore: address review

* chore: simplify tests
2020-01-24 14:40:40 +01:00
2afdbb71b2 chore: update it-length-prefixed (#476)
fix: decode.fromReader usage
2020-01-24 14:40:40 +01:00
c7a54f34f7 refactor: async identify and identify push (#473)
* chore: add missing dep

* feat: import from identify push branch

https://github.com/libp2p/js-libp2p-identify/tree/feat/identify-push

* feat: add the connection to stream handlers

* refactor: identify to async/await

* chore: fix lint

* test: add identify tests

* refactor: add identify to the dialer flow

* feat: connect identify to the registrar

* fix: resolve review feedback

* fix: perform identify push when our protocols change
2020-01-24 14:40:40 +01:00
9d52b80c45 feat: registrar (#471)
* feat: peer-store v0

* feat: registrar

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* chore: address review

* chore: support multiple conns

* chore: address review

* fix: no remote peer from topology on disconnect
2020-01-24 14:40:40 +01:00
582094a834 feat: peer store (#470)
* feat: peer-store v0

* chore: apply suggestions from code review

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
2020-01-24 14:40:40 +01:00
fe2a8eddbb refactor: crypto and pnet (#469)
* feat: add initial plaintext 2 module

* refactor: initial refactor of pnet

* chore: fix lint

* fix: update plaintext api usage

* test: use plaintext for test crypto

* chore: update deps

test: update dialer suite scope

* feat: add connection protection to the upgrader

* refactor: cleanup and lint fix

* chore: remove unncessary transforms

* chore: temporarily disable bundlesize

* chore: add missing dep

* fix: use it-handshake to prevent overreading

* chore(fix): PR feedback updates

* chore: apply suggestions from code review

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>
2020-01-24 14:40:40 +01:00
5e1dbc21a2 refactor(async): add dialer and upgrader (#462)
* chore(deps): update connection and multistream

* feat: add basic dial support for addresses and peers

* test: automatically require all node test files

* fix: dont catch and log in the wrong place

* test: add direct spec test

fix: improve dial error consistency

* feat: add dial timeouts and concurrency

Queue timeouts will result in aborts of the dials

* chore: fix linting

* test: verify dialer defaults

* feat: add initial upgrader

* fix: add more test coverage and fix bugs

* feat: libp2p creates the upgrader

* feat: hook up handle to the upgrader

* feat: hook up the dialer to libp2p

test: add node dialer libp2p tests

* feat: add connection listeners to upgrader

* feat: emit connect and disconnect events

* chore: use libp2p-interfaces

* fix: address review feedback

* fix: correct import

* refactor: dedupe connection creation code
2020-01-24 14:40:40 +01:00
b37ccc7279 docs: add stream wrapping example (#466)
* docs: add duplex wrapping example

docs: add iterable types from @alanshaw's gist

* docs(fix): add feedback fix

Co-Authored-By: Vasco Santos <vasco.santos@moxy.studio>

* docs: clean up based on feedback
2020-01-24 14:40:40 +01:00
440fbf0c04 refactor(async): update transports subsystem (#461)
* test: remove all tests for a clean slate

The refactor will require a large number of updates to the tests. In order
to ensure we have done a decent deduplication, and have a cleaner suite of tests
we've removed all tests. This will also allow us to more easily see tests
for the refactored systems.

We have a record of the latest test suites in master, so we are not losing any history.

* chore: update tcp and websockets
* chore: remove other transports until they are converted
* chore: use mafmt and multiaddr async versions
* chore: add and fix dependencies
* chore: clean up travis file
* feat: add new transport manager
* docs: add constructor jsdocs
* refactor(config): check that transports exist
This also removes the other logic, it can be added when those subsystems are refactored

* chore(deps): use async peer-id and peer-info
* feat: wire up the transport manager with libp2p
* chore: remove superstruct dep
2020-01-24 14:40:40 +01:00
0cef51d4c2 Add streaming iterables guide (#459)
* docs: add streaming iterables guide placeholder

* chore: move peer discovery readme to doc fold:wqer

* docs: add link to async refactor issue
2020-01-24 14:40:40 +01:00
b277b26043 docs: add missing ones 2019-12-11 10:52:13 +01:00
bc071ce7d7 docs: fix gossipsub link 2019-12-11 10:52:13 +01:00
01730214d6 docs: fix js-interfaces badge 2019-12-11 10:52:13 +01:00
0826531e31 docs: update the package table for my pepz :) 2019-12-11 10:52:13 +01:00
35ac02dcb5 fix: examples readme typos (#481) 2019-11-26 05:56:19 -06:00
b73348078d docs(example): fix ipfs cat (#475)
`ipfs.files.cat` is incorrect. the correct function is `ipfs.cat`
2019-11-11 13:22:59 +01:00
21cd9c67bc docs: reciprocate (#474) 2019-11-04 19:10:17 +01:00
0fc4537a5e docs(fix): update README.md language (#468) 2019-10-24 10:52:40 +02:00
6a05f3e6e7 docs(fix): correct docs and example for pnet (#464)
* docs(fix): correct docs and example for pnet

* docs(fix): correct pnet docs
2019-10-16 17:27:31 +02:00
93a1e42ef3 fix: performance bottleneck in stat.js (#463)
Array.shift seems to be very slow, perhaps linear, on some
engines, resulting in  _update consuming a lot of CPU.
2019-10-14 12:19:51 +02:00
35aa45ce92 chore: update required libp2p-crypto version (#457)
So as to only pull in libp2p-crypto version with updated `node-forge` dep
2019-09-25 12:12:36 +02:00
b11c6fc7e9 chore: release version v0.26.2 2019-09-24 14:10:58 +02:00
ebedd3510b chore: update contributors 2019-09-24 14:10:57 +02:00
ae6af20e8e fix: pubsub promisify (#456)
* fix: allow pubsub sub/unsub via promises

* chore: fix linting errors
2019-09-24 14:02:07 +02:00
2a80618740 docs: add bridged chats (#454) 2019-09-23 11:39:47 +02:00
5b1bd389f8 docs: update packages table (#265)
* docs: update packages table

* docs: removed not implemented packages
2019-09-03 10:29:03 +02:00
3e31c2d0df docs: remove dead link from readme (#450) 2019-08-27 17:07:21 +02:00
8079c2078b chore: release version v0.26.1 2019-08-21 19:51:51 +02:00
80cf0777b5 chore: update contributors 2019-08-21 19:51:50 +02:00
60b0cbc179 fix: reject rather than throw in get peer info (#410)
The get peer info util consolidation from #400 exposed an issue
with how bad values are being handled. Throwing the error can cause
issues when promises are being used. Rejecting resolves this.
I added a test case to validate the change.
2019-08-21 19:08:56 +02:00
3eef695bc0 fix: improve config defaults (#409)
This removes defaults from superstruct and instead uses
mergeOptions to deeply set the defaults on configuration.
This ensures that defaults are properly set.

This is a step toward removing superstruct altogether, #406,
but it is still being used for basic type validation.
2019-08-21 16:44:30 +02:00
b3deb356f1 fix: reference files directly to avoid npm install failures (#408) 2019-08-21 10:23:06 +02:00
299cfefa01 chore: remove webrtcsupport 2019-08-20 17:34:55 +02:00
aa95ab9928 fix: avoid using superstruct interface 2019-08-20 17:34:55 +02:00
b0f124b5ff fix: pubsub configuration (#404)
* fix: add pubsub default config (#401)

License: MIT
Signed-off-by: Matthias Knopp <matthias-knopp@gmx.net>

* docs: add default pubsub config to README (#401)

License: MIT
Signed-off-by: Matthias Knopp <matthias-knopp@gmx.net>

* fix: pass config to provided PubSub (#401)

License: MIT
Signed-off-by: Matthias Knopp <matthias-knopp@gmx.net>

* docs: adapt pubsub/example for new config (#401)

License: MIT
Signed-off-by: Matthias Knopp <matthias-knopp@gmx.net>

* Update examples/pubsub/README.md

Co-Authored-By: Jacob Heun <jacobheun@gmail.com>

* test: add pubsub config tests (#401)

License: MIT
Signed-off-by: Matthias Knopp <matthias-knopp@gmx.net>
2019-08-19 17:06:08 +02:00
b294301456 refactor: add core modules to libp2p (#400)
* refactor: add js-libp2p-connection-manager to repo

Co-authored-by: David Dias <daviddias.p@gmail.com>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Pedro Teixeira <i@pgte.me>
Co-authored-by: Vasco Santos <vasco.santos@ua.pt>

* test(conn-mgr): only run in node

* refactor: add js-libp2p-identify to repo

Co-authored-by: David Dias <daviddias.p@gmail.com>
Co-authored-by: Friedel Ziegelmayer <dignifiedquire@gmail.com>
Co-authored-by: Hugo Dias <hugomrdias@gmail.com>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Maciej Krüger <mkg20001@gmail.com>
Co-authored-by: Richard Littauer <richard.littauer@gmail.com>
Co-authored-by: Vasco Santos <vasco.santos@moxy.studio>
Co-authored-by: Yusef Napora <yusef@protocol.ai>
Co-authored-by: ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>

* refactor: add libp2p-pnet to repo

Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Vasco Santos <vasco.santos@moxy.studio>

* refactor: add libp2p-ping to repo

Co-authored-by: David Dias <daviddias.p@gmail.com>
Co-authored-by: Francisco Baio Dias <xicombd@gmail.com>
Co-authored-by: Friedel Ziegelmayer <dignifiedquire@gmail.com>
Co-authored-by: Hugo Dias <mail@hugodias.me>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: João Antunes <j.goncalo.antunes@gmail.com>
Co-authored-by: Richard Littauer <richard.littauer@gmail.com>
Co-authored-by: Vasco Santos <vasco.santos@moxy.studio>
Co-authored-by: Vasco Santos <vasco.santos@ua.pt>
Co-authored-by: ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>

* refactor: add libp2p-circuit to repo

Co-authored-by: David Dias <daviddias.p@gmail.com>
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
Co-authored-by: Friedel Ziegelmayer <dignifiedquire@gmail.com>
Co-authored-by: Hugo Dias <mail@hugodias.me>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Maciej Krüger <mkg20001@gmail.com>
Co-authored-by: Oli Evans <oli@tableflip.io>
Co-authored-by: Pedro Teixeira <i@pgte.me>
Co-authored-by: Vasco Santos <vasco.santos@ua.pt>
Co-authored-by: Victor Bjelkholm <victorbjelkholm@gmail.com>
Co-authored-by: Yusef Napora <yusef@napora.org>
Co-authored-by: dirkmc <dirk@mccormick.cx>

* test(switch): avoid using instanceof

* chore(switch): update bignumber dep

* refactor(circuit): clean up tests

* refactor(switch): consolidate get peer utils

* test(identify): do deep checks of addresses

* test(identify): bump timeout for identify test

* test(switch): tidy up limit dialer test

* refactor(switch): remove redundant circuit tests

* chore: add coverage script

* refactor(circuit): consolidate get peer info

* docs: reference original repositories in each sub readme

* docs: fix comment

* refactor: clean up sub package.json files and readmes
2019-08-16 17:30:03 +02:00
d92306f222 docs: fix contributing readme (#403) 2019-08-13 12:10:59 +02:00
fd738f9d51 refactor: add js-libp2p-switch to the libp2p codebase (#388)
Co-authored-by: Alan Shaw <alan.shaw@protocol.ai>
Co-authored-by: Alan Shaw <alan@tableflip.io>
Co-authored-by: Arnaud <arnaud.valensi@gmail.com>
Co-authored-by: David Dias <daviddias.p@gmail.com>
Co-authored-by: David Dias <mail@daviddias.me>
Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
Co-authored-by: Francisco Baio Dias <xicombd@gmail.com>
Co-authored-by: Friedel Ziegelmayer <dignifiedquire@gmail.com>
Co-authored-by: Haad <haadcode@users.noreply.github.com>
Co-authored-by: Hugo Dias <mail@hugodias.me>
Co-authored-by: Hugo Dias <hugomrdias@gmail.com>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Kevin Kwok <antimatter15@gmail.com>
Co-authored-by: Kobi Gurkan <kobigurk@gmail.com>
Co-authored-by: Maciej Krüger <mkg20001@gmail.com>
Co-authored-by: Matteo Collina <matteo.collina@gmail.com>
Co-authored-by: Michael Fakhry <fakhrimichael@live.com>
Co-authored-by: Oli Evans <oli@tableflip.io>
Co-authored-by: Pau Ramon Revilla <masylum@gmail.com>
Co-authored-by: Pedro Teixeira <i@pgte.me>
Co-authored-by: Pius Nyakoojo <piusnyakoojo@gmail.com>
Co-authored-by: Richard Littauer <richard.littauer@gmail.com>
Co-authored-by: Sid Harder <sideharder@gmail.com>
Co-authored-by: Vasco Santos <vasco.santos@ua.pt>
Co-authored-by: harrshasri <35241544+harrshasri@users.noreply.github.com>
Co-authored-by: kumavis <kumavis@users.noreply.github.com>
Co-authored-by: ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>
2019-08-08 19:01:16 +02:00
d788433b43 chore: release version v0.26.0 2019-08-07 20:48:42 +02:00
d5a977b227 chore: update contributors 2019-08-07 20:48:41 +02:00
0489972b4b chore: release version v0.26.0-rc.3 2019-08-06 12:27:28 +02:00
3f31b1f422 chore: update contributors 2019-08-06 12:27:27 +02:00
a2b3446ed7 docs: async migration (#397) 2019-08-06 12:01:16 +02:00
ff7a6c86a0 fix: promisified methods (#398)
* chore: update ws rendezvous dep

test(fix): fix tests with latest ws rendezvous server

* fix: promisification of libp2p methods

test: add tests to verify promisify support until async/await endeavor is complete

* chore: fix linting
2019-08-06 10:53:23 +02:00
9a8d609a59 chore: release version v0.26.0-rc.2 2019-08-01 17:17:54 +02:00
9fef58cb7d chore: update contributors 2019-08-01 17:17:54 +02:00
684f283aec chore: update switch (#395)
BREAKING CHANGE: switch configuration has changed.
'blacklistTTL' is now 'denyTTL' and 'blackListAttempts' is now 'denyAttempts'
2019-08-01 17:15:02 +02:00
3e95e6f9e4 fix: dont override methods of created instance (#394)
* fix: dont override methods of created instance

* chore: fix lint
2019-08-01 16:08:38 +02:00
f4f3f0f03a fix: pubsub default config (#393)
* docs: update browser example pubsub

* docs: fix pubsub example config

* fix: make pubsub default to enabled

This allows for only adding the module to have it enabled. Previously you would have to supply and enable the module which is unncessary for users
2019-07-31 18:47:30 +02:00
7c2c852fc0 chore: release version v0.26.0-rc.1 2019-07-31 14:35:43 +02:00
e8d8aab278 chore: update contributors 2019-07-31 14:35:42 +02:00
dd48d268ec chore: promisify pubsub start and stop (#392) 2019-07-31 14:33:00 +02:00
99a53592e2 chore: release version v0.26.0-rc.0 2019-07-31 09:47:06 +02:00
2a2e7a1012 chore: update contributors 2019-07-31 09:47:06 +02:00
791f39a09b feat: integrate gossipsub by default (#365)
BREAKING CHANGE: new configuration for deciding the implementation of pubsub to be used.
In this context, the experimental flags were also removed. See the README for the latest usage.
2019-07-31 09:38:14 +02:00
65d52857a5 test(fix): correct findProviders test for missing provider (#391)
* test(fix): correct findProviders test for missing provider

* chore: fix lint
2019-07-30 15:11:24 +02:00
48b1b442e9 docs: libp2p in browser example (#390)
* docs: improve browser example

* docs: remove bad ipfs link
2019-07-30 12:38:02 +02:00
9554b05c6f fix: make subscribe comply with ipfs interface (#389)
BREAKING CHANGE: The ipfs interface specified that options
should be provided after the handler, not before.
https://github.com/ipfs/interface-js-ipfs-core/blob/v0.109.0/SPEC/PUBSUB.md#pubsubsubscribe

This corrects the order of parameters. See the jsdocs examples
for subscribe to see how it should be used.
2019-07-30 12:36:23 +02:00
df6ef45a2d feat: promisify all api methods that accept callbacks (#381)
* feat: promisify all api methods that accept callbacks

This is a stop-gap until the full async/await migration can be
completed.  It means we can refactor tests of other modules that
depend on this module without having to mix async flow control
strategies.

N.b. some methods that were previously callable without callbacks
(e.g. `node.start()`, `node.stop()`, etc) now require callbacks
otherwise a promise is returned which, if rejected, can cause
`unhandledPromiseRejection` events and lead to memory leaks.

* docs: add a global note to the api about promisify

* fix: update the logic for unsubscribe

* test(fix): correct pubsub unsubscribe usage for api change

* test(fix): update content routing tests for latest delegate version
2019-07-29 15:40:40 +02:00
b4a70ea476 chore: release version v0.25.5 2019-07-12 13:10:55 +01:00
45716da465 chore: update contributors 2019-07-12 13:10:53 +01:00
905c911946 fix: peer routing for delegate router (#377)
* fix: peer routing tests

* test: fix mock payload type

Provider results are type 4, not type 1: 6e566d10f4/routing/query.go (L15-L24)
2019-07-12 13:02:03 +01:00
10811e9ced chore: update keywords and description (#370)
* chore: update keywords and description

chore: reorganize package.json fields

* test: bump timeouts for peer generation
2019-06-12 14:18:34 +02:00
9c2789bc15 chore: release version v0.25.4 2019-06-07 17:10:07 +02:00
24be691bc1 chore: update contributors 2019-06-07 17:10:07 +02:00
9433c6c398 docs: add createLibp2p to readme (#368)
* chore: update deps
* test(fix): account for wrtcrendezvous now being thenable
2019-06-07 15:50:23 +02:00
04faf1806c feat: add createLibp2p to generate a PeerInfo instance (#367)
createLibp2p is a new exported helper function that allows users to create a libp2p instance without worrying about creating a PeerInfo instance first.
2019-06-06 12:21:31 +02:00
b06ca1b3c7 feat: pass libp2p as option to transport creation (#363) 2019-05-17 12:11:22 +02:00
bde30cac45 chore: remove commitlint from travis
Commit messages should be fixed on PR squash and merge
2019-05-17 10:31:16 +02:00
28c054c21e chore: release version v0.25.3 2019-05-07 13:49:03 +02:00
c346e8066b chore: update contributors 2019-05-07 13:49:02 +02:00
40978a1940 feat: sign pubsub messages (#362)
* fix: forward pubsub publish callback to floodsub

chore: update floodsub version

* test: add random walk delay to config

* chore: update floodsub
2019-05-07 13:45:59 +02:00
71dcaafcac chore: release version v0.25.2 2019-04-17 15:06:47 +02:00
5319e065ec chore: update contributors 2019-04-17 15:06:47 +02:00
f3801f0e6c fix: dht config (#359) 2019-04-17 15:04:35 +02:00
51cc993876 docs: fix incorrect references for enabling dht discovery (#358) 2019-04-16 15:04:23 +02:00
a800c1ad91 chore: release version v0.25.1 2019-04-16 12:40:41 +02:00
54c474de98 chore: update contributors 2019-04-16 12:40:41 +02:00
f28dffb268 fix: bail when discovering self (#357) 2019-04-16 12:05:22 +02:00
c049074cb5 chore: update release template (#355) 2019-04-12 13:05:13 +02:00
239 changed files with 21107 additions and 8330 deletions

104
.aegir.js
View File

@ -1,85 +1,51 @@
'use strict'
const pull = require('pull-stream')
const parallel = require('async/parallel')
const WebSocketStarRendezvous = require('libp2p-websocket-star-rendezvous')
const sigServer = require('libp2p-webrtc-star/src/sig-server')
const Libp2p = require('./src')
const { MULTIADDRS_WEBSOCKETS } = require('./test/fixtures/browser')
const Peers = require('./test/fixtures/peers')
const PeerId = require('peer-id')
const WebSockets = require('libp2p-websockets')
const Muxer = require('libp2p-mplex')
const { NOISE: Crypto } = require('libp2p-noise')
const pipe = require('it-pipe')
let libp2p
const Node = require('./test/utils/bundle-nodejs.js')
const {
getPeerRelay,
WRTC_RENDEZVOUS_MULTIADDR,
WS_RENDEZVOUS_MULTIADDR
} = require('./test/utils/constants')
const before = async () => {
// Use the last peer
const peerId = await PeerId.createFromJSON(Peers[Peers.length - 1])
let wrtcRendezvous
let wsRendezvous
let node
const before = (done) => {
parallel([
(cb) => {
sigServer.start({
port: WRTC_RENDEZVOUS_MULTIADDR.nodeAddress().port
// cryptoChallenge: true TODO: needs https://github.com/libp2p/js-libp2p-webrtc-star/issues/128
}, (err, server) => {
if (err) {
return cb(err)
}
wrtcRendezvous = server
cb()
})
libp2p = new Libp2p({
addresses: {
listen: [MULTIADDRS_WEBSOCKETS[0]]
},
(cb) => {
WebSocketStarRendezvous.start({
port: WS_RENDEZVOUS_MULTIADDR.nodeAddress().port,
refreshPeerListIntervalMS: 1000,
strictMultiaddr: false,
cryptoChallenge: true
}, (err, _server) => {
if (err) {
return cb(err)
}
wsRendezvous = _server
cb()
})
peerId,
modules: {
transport: [WebSockets],
streamMuxer: [Muxer],
connEncryption: [Crypto]
},
(cb) => {
getPeerRelay((err, peerInfo) => {
if (err) {
return done(err)
config: {
relay: {
enabled: true,
hop: {
enabled: true,
active: false
}
node = new Node({
peerInfo,
config: {
relay: {
enabled: true,
hop: {
enabled: true,
active: true
}
}
}
})
node.handle('/echo/1.0.0', (protocol, conn) => pull(conn, conn))
node.start(cb)
})
}
}
], done)
})
// Add the echo protocol
libp2p.handle('/echo/1.0.0', ({ stream }) => pipe(stream, stream))
await libp2p.start()
}
const after = (done) => {
setTimeout(() =>
parallel(
[node, wrtcRendezvous, wsRendezvous].map((s) => (cb) => s.stop(cb)),
done),
2000)
const after = async () => {
await libp2p.stop()
}
module.exports = {
bundlesize: { maxSize: '218kB' },
bundlesize: { maxSize: '202kB' },
hooks: {
pre: before,
post: after

2
.gitignore vendored
View File

@ -3,12 +3,14 @@ docs
**/*.log
test/repo-tests*
**/bundle.js
.cache
# Logs
logs
*.log
coverage
.nyc_output
# Runtime data
pids

View File

@ -7,11 +7,12 @@ stages:
node_js:
- '10'
- '12'
os:
- linux
- osx
script: npx nyc -s npm run test:node -- --bail
after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
@ -20,8 +21,8 @@ jobs:
- stage: check
script:
- npx aegir build --bundlesize
- npx aegir commitlint --travis
- npx aegir dep-check -- -i wrtc -i electron-webrtc
# Remove pull libs once ping is async
- npx aegir dep-check -- -i pull-handshake -i pull-stream
- npm run lint
- stage: test
@ -29,16 +30,21 @@ jobs:
addons:
chrome: stable
script:
- npx aegir test -t browser
- npx aegir test -t webworker
- npx aegir test -t browser -t webworker
- stage: test
name: firefox
addons:
firefox: latest
script:
- npx aegir test -t browser -- --browsers FirefoxHeadless
- npx aegir test -t webworker -- --browsers FirefoxHeadless
- npx aegir test -t browser -t webworker -- --browsers FirefoxHeadless
- stage: test
name: interop
script:
- cd node_modules/interop-libp2p
- npm install
- LIBP2P_JS=${TRAVIS_BUILD_DIR}/src/index.js npx aegir test -t node --bail
notifications:
email: false

View File

@ -1,3 +1,461 @@
<a name="0.28.7"></a>
## [0.28.7](https://github.com/libp2p/js-libp2p/compare/v0.28.6...v0.28.7) (2020-07-14)
### Bug Fixes
* retimer reschedule does not work as interval ([#710](https://github.com/libp2p/js-libp2p/issues/710)) ([999c1b7](https://github.com/libp2p/js-libp2p/commit/999c1b7))
<a name="0.28.6"></a>
## [0.28.6](https://github.com/libp2p/js-libp2p/compare/v0.28.5...v0.28.6) (2020-07-14)
### Bug Fixes
* not dial all known peers in parallel on startup ([#698](https://github.com/libp2p/js-libp2p/issues/698)) ([9ccab40](https://github.com/libp2p/js-libp2p/commit/9ccab40))
<a name="0.28.5"></a>
## [0.28.5](https://github.com/libp2p/js-libp2p/compare/v0.28.4...v0.28.5) (2020-07-10)
### Bug Fixes
* pass libp2p to the dht ([#700](https://github.com/libp2p/js-libp2p/issues/700)) ([5a84dd5](https://github.com/libp2p/js-libp2p/commit/5a84dd5))
<a name="0.28.4"></a>
## [0.28.4](https://github.com/libp2p/js-libp2p/compare/v0.28.3...v0.28.4) (2020-07-03)
<a name="0.28.3"></a>
## [0.28.3](https://github.com/libp2p/js-libp2p/compare/v0.28.2...v0.28.3) (2020-06-18)
### Bug Fixes
* catch pipe errors ([#678](https://github.com/libp2p/js-libp2p/issues/678)) ([a8219e6](https://github.com/libp2p/js-libp2p/commit/a8219e6))
<a name="0.28.2"></a>
## [0.28.2](https://github.com/libp2p/js-libp2p/compare/v0.28.1...v0.28.2) (2020-06-15)
### Reverts
* "fix: throw if no conn encryption module provided ([#665](https://github.com/libp2p/js-libp2p/issues/665))" ([b621fbd](https://github.com/libp2p/js-libp2p/commit/b621fbd))
<a name="0.28.1"></a>
## [0.28.1](https://github.com/libp2p/js-libp2p/compare/v0.28.0...v0.28.1) (2020-06-12)
### Bug Fixes
* throw if no conn encryption module provided ([#665](https://github.com/libp2p/js-libp2p/issues/665)) ([c038550](https://github.com/libp2p/js-libp2p/commit/c038550))
### Features
* add ConnectionManager#getAll ([8f680e2](https://github.com/libp2p/js-libp2p/commit/8f680e2))
<a name="0.28.0"></a>
# [0.28.0](https://github.com/libp2p/js-libp2p/compare/v0.28.0-rc.0...v0.28.0) (2020-06-05)
<a name="0.28.0-rc.0"></a>
# [0.28.0-rc.0](https://github.com/libp2p/js-libp2p/compare/v0.27.8...v0.28.0-rc.0) (2020-05-28)
### Bug Fixes
* always emit when a connection is made ([72f37ac](https://github.com/libp2p/js-libp2p/commit/72f37ac))
* expose the muxed stream interface on inbound streams ([52a615f](https://github.com/libp2p/js-libp2p/commit/52a615f))
* libp2p connections getter ([aaf62a4](https://github.com/libp2p/js-libp2p/commit/aaf62a4))
* onConnect should not add addr to the addressBook ([2b45fee](https://github.com/libp2p/js-libp2p/commit/2b45fee))
* use libp2p.multiaddrs instead of listen ([7fbd155](https://github.com/libp2p/js-libp2p/commit/7fbd155))
* **example:** rename misleading variable ([#645](https://github.com/libp2p/js-libp2p/issues/645)) ([b781911](https://github.com/libp2p/js-libp2p/commit/b781911))
### Chores
* deprecate old peer store api ([#598](https://github.com/libp2p/js-libp2p/issues/598)) ([ed6d5bb](https://github.com/libp2p/js-libp2p/commit/ed6d5bb))
* remove peer-info usage ([12e48ad](https://github.com/libp2p/js-libp2p/commit/12e48ad))
### Features
* address and proto books ([#590](https://github.com/libp2p/js-libp2p/issues/590)) ([e9d225c](https://github.com/libp2p/js-libp2p/commit/e9d225c))
* address manager ([2a7967c](https://github.com/libp2p/js-libp2p/commit/2a7967c))
* keybook ([ce38033](https://github.com/libp2p/js-libp2p/commit/ce38033))
* metadata book ([#638](https://github.com/libp2p/js-libp2p/issues/638)) ([84b935f](https://github.com/libp2p/js-libp2p/commit/84b935f))
* peerStore persistence ([5123a83](https://github.com/libp2p/js-libp2p/commit/5123a83))
* support dial only on transport manager to tolerate errors ([#643](https://github.com/libp2p/js-libp2p/issues/643)) ([698c1df](https://github.com/libp2p/js-libp2p/commit/698c1df))
### BREAKING CHANGES
* all API methods with peer-info parameters or return values were changed. You can check the API.md document, in order to check the new values to use
* the peer-store api changed. Check the API docs for the new specification.
* chore: apply suggestions from code review
Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
* chore: apply suggestions from code review
Co-Authored-By: Jacob Heun <jacobheun@gmail.com>
Co-authored-by: Jacob Heun <jacobheun@gmail.com>
<a name="0.27.8"></a>
## [0.27.8](https://github.com/libp2p/js-libp2p/compare/v0.27.7...v0.27.8) (2020-05-06)
### Bug Fixes
* reset discovery services upon stop ([#618](https://github.com/libp2p/js-libp2p/issues/618)) ([ea0621b](https://github.com/libp2p/js-libp2p/commit/ea0621b))
<a name="0.27.7"></a>
## [0.27.7](https://github.com/libp2p/js-libp2p/compare/v0.27.6...v0.27.7) (2020-04-24)
### Bug Fixes
* remove node global ([#587](https://github.com/libp2p/js-libp2p/issues/587)) ([9b13fe3](https://github.com/libp2p/js-libp2p/commit/9b13fe3))
<a name="0.27.6"></a>
## [0.27.6](https://github.com/libp2p/js-libp2p/compare/v0.27.5...v0.27.6) (2020-04-16)
### Bug Fixes
* add null check in libp2p.hangUp() ([c940f2d](https://github.com/libp2p/js-libp2p/commit/c940f2d))
* make circuit relay listening addresses more forgiving ([#604](https://github.com/libp2p/js-libp2p/issues/604)) ([e192eb6](https://github.com/libp2p/js-libp2p/commit/e192eb6))
<a name="0.27.5"></a>
## [0.27.5](https://github.com/libp2p/js-libp2p/compare/v0.27.4...v0.27.5) (2020-04-06)
### Bug Fixes
* await peer discovery start in libp2p start ([#600](https://github.com/libp2p/js-libp2p/issues/600)) ([bd7fd0f](https://github.com/libp2p/js-libp2p/commit/bd7fd0f))
<a name="0.27.4"></a>
## [0.27.4](https://github.com/libp2p/js-libp2p/compare/v0.27.3...v0.27.4) (2020-03-31)
### Bug Fixes
* only use a single export ([#596](https://github.com/libp2p/js-libp2p/issues/596)) ([3072875](https://github.com/libp2p/js-libp2p/commit/3072875))
* pass libp2p to discovery services ([#597](https://github.com/libp2p/js-libp2p/issues/597)) ([9e35fbc](https://github.com/libp2p/js-libp2p/commit/9e35fbc))
* **test:** improve flakey random walk discovery test ([#574](https://github.com/libp2p/js-libp2p/issues/574)) ([f4ec355](https://github.com/libp2p/js-libp2p/commit/f4ec355))
* remove use of assert module ([#561](https://github.com/libp2p/js-libp2p/issues/561)) ([a8984c6](https://github.com/libp2p/js-libp2p/commit/a8984c6))
<a name="0.27.3"></a>
## [0.27.3](https://github.com/libp2p/js-libp2p/compare/v0.27.2...v0.27.3) (2020-02-11)
### Bug Fixes
* dont allow multiaddr dials without a peer id ([#558](https://github.com/libp2p/js-libp2p/issues/558)) ([a317a8b](https://github.com/libp2p/js-libp2p/commit/a317a8b))
<a name="0.27.2"></a>
## [0.27.2](https://github.com/libp2p/js-libp2p/compare/v0.27.1...v0.27.2) (2020-02-05)
### Bug Fixes
* ensure identify streams are closed ([#551](https://github.com/libp2p/js-libp2p/issues/551)) ([f662fdc](https://github.com/libp2p/js-libp2p/commit/f662fdc))
<a name="0.27.1"></a>
## [0.27.1](https://github.com/libp2p/js-libp2p/compare/v0.27.0...v0.27.1) (2020-02-03)
### Bug Fixes
* stop stream after first pong received ([#545](https://github.com/libp2p/js-libp2p/issues/545)) ([be8fc9d](https://github.com/libp2p/js-libp2p/commit/be8fc9d))
<a name="0.27.0"></a>
# [0.27.0](https://github.com/libp2p/js-libp2p/compare/v0.26.2...v0.27.0) (2020-01-28)
### Bug Fixes
* clean up peer discovery flow ([#494](https://github.com/libp2p/js-libp2p/issues/494)) ([12fc069](https://github.com/libp2p/js-libp2p/commit/12fc069))
* clean up pending dials abort per feedback ([633b0c2](https://github.com/libp2p/js-libp2p/commit/633b0c2))
* conn mngr min/max connection values ([#528](https://github.com/libp2p/js-libp2p/issues/528)) ([ba4681b](https://github.com/libp2p/js-libp2p/commit/ba4681b))
* correct release readme ([ce8e60b](https://github.com/libp2p/js-libp2p/commit/ce8e60b))
* examples readme typos ([#481](https://github.com/libp2p/js-libp2p/issues/481)) ([35ac02d](https://github.com/libp2p/js-libp2p/commit/35ac02d))
* make dialer configurable ([#521](https://github.com/libp2p/js-libp2p/issues/521)) ([4ca481b](https://github.com/libp2p/js-libp2p/commit/4ca481b))
* performance bottleneck in stat.js ([#463](https://github.com/libp2p/js-libp2p/issues/463)) ([93a1e42](https://github.com/libp2p/js-libp2p/commit/93a1e42))
* registrar should filter the disconnected conn ([#532](https://github.com/libp2p/js-libp2p/issues/532)) ([bb2e56e](https://github.com/libp2p/js-libp2p/commit/bb2e56e))
* release tokens as soon as they are available ([2570a1b](https://github.com/libp2p/js-libp2p/commit/2570a1b))
* replace peerInfo addresses with listen addresses ([#485](https://github.com/libp2p/js-libp2p/issues/485)) ([1999606](https://github.com/libp2p/js-libp2p/commit/1999606))
* stop discoveries ([#530](https://github.com/libp2p/js-libp2p/issues/530)) ([4222c49](https://github.com/libp2p/js-libp2p/commit/4222c49))
* token release logic ([90ecc57](https://github.com/libp2p/js-libp2p/commit/90ecc57))
* upgrader should not need muxers ([#517](https://github.com/libp2p/js-libp2p/issues/517)) ([5d7ee50](https://github.com/libp2p/js-libp2p/commit/5d7ee50))
* use toB58String everywhere to be consistent ([#537](https://github.com/libp2p/js-libp2p/issues/537)) ([c1038be](https://github.com/libp2p/js-libp2p/commit/c1038be))
### Features
* abort all pending dials on stop ([ba02764](https://github.com/libp2p/js-libp2p/commit/ba02764))
* add early token recycling in ([a5b54a7](https://github.com/libp2p/js-libp2p/commit/a5b54a7))
* add libp2p.connections getter ([#522](https://github.com/libp2p/js-libp2p/issues/522)) ([6445fda](https://github.com/libp2p/js-libp2p/commit/6445fda))
* add token based dialer ([e445a17](https://github.com/libp2p/js-libp2p/commit/e445a17))
* allow transport options to be passed on creation ([#524](https://github.com/libp2p/js-libp2p/issues/524)) ([c339be1](https://github.com/libp2p/js-libp2p/commit/c339be1))
* coalescing dial support ([#518](https://github.com/libp2p/js-libp2p/issues/518)) ([15f7c2a](https://github.com/libp2p/js-libp2p/commit/15f7c2a))
* discovery modules ([#486](https://github.com/libp2p/js-libp2p/issues/486)) ([18a062e](https://github.com/libp2p/js-libp2p/commit/18a062e))
* discovery modules from transports should be added ([#510](https://github.com/libp2p/js-libp2p/issues/510)) ([f1eb373](https://github.com/libp2p/js-libp2p/commit/f1eb373))
* peer store ([#470](https://github.com/libp2p/js-libp2p/issues/470)) ([582094a](https://github.com/libp2p/js-libp2p/commit/582094a))
* registrar ([#471](https://github.com/libp2p/js-libp2p/issues/471)) ([9d52b80](https://github.com/libp2p/js-libp2p/commit/9d52b80))
* support peer-id instances in peer store operations ([#491](https://github.com/libp2p/js-libp2p/issues/491)) ([8da9fc9](https://github.com/libp2p/js-libp2p/commit/8da9fc9))
<a name="0.27.0-rc.0"></a>
# [0.27.0-rc.0](https://github.com/libp2p/js-libp2p/compare/v0.27.0-pre.2...v0.27.0-rc.0) (2020-01-24)
### Bug Fixes
* registrar should filter the disconnected conn ([#532](https://github.com/libp2p/js-libp2p/issues/532)) ([83409de](https://github.com/libp2p/js-libp2p/commit/83409de))
* stop discoveries ([#530](https://github.com/libp2p/js-libp2p/issues/530)) ([c44e6e3](https://github.com/libp2p/js-libp2p/commit/c44e6e3))
* use toB58String everywhere to be consistent ([#537](https://github.com/libp2p/js-libp2p/issues/537)) ([31d1b23](https://github.com/libp2p/js-libp2p/commit/31d1b23))
<a name="0.27.0-pre.2"></a>
# [0.27.0-pre.2](https://github.com/libp2p/js-libp2p/compare/v0.27.0-pre.1...v0.27.0-pre.2) (2020-01-07)
### Bug Fixes
* conn mngr min/max connection values ([#528](https://github.com/libp2p/js-libp2p/issues/528)) ([a1717da](https://github.com/libp2p/js-libp2p/commit/a1717da))
* make dialer configurable ([#521](https://github.com/libp2p/js-libp2p/issues/521)) ([24c3ce6](https://github.com/libp2p/js-libp2p/commit/24c3ce6))
* upgrader should not need muxers ([#517](https://github.com/libp2p/js-libp2p/issues/517)) ([56a1825](https://github.com/libp2p/js-libp2p/commit/56a1825))
### Features
* add libp2p.connections getter ([#522](https://github.com/libp2p/js-libp2p/issues/522)) ([6ca19c5](https://github.com/libp2p/js-libp2p/commit/6ca19c5))
* allow transport options to be passed on creation ([#524](https://github.com/libp2p/js-libp2p/issues/524)) ([0d4b2bd](https://github.com/libp2p/js-libp2p/commit/0d4b2bd))
<a name="0.27.0-pre.1"></a>
# [0.27.0-pre.1](https://github.com/libp2p/js-libp2p/compare/v0.27.0-pre.0...v0.27.0-pre.1) (2019-12-15)
### Features
* coalescing dial support ([#518](https://github.com/libp2p/js-libp2p/issues/518)) ([4a871bb](https://github.com/libp2p/js-libp2p/commit/4a871bb))
<a name="0.27.0-pre.0"></a>
# [0.27.0-pre.0](https://github.com/libp2p/js-libp2p/compare/v0.26.2...v0.27.0-pre.0) (2019-12-12)
### Bug Fixes
* clean up peer discovery flow ([#494](https://github.com/libp2p/js-libp2p/issues/494)) ([f3eb1f1](https://github.com/libp2p/js-libp2p/commit/f3eb1f1))
* clean up pending dials abort per feedback ([7c3371b](https://github.com/libp2p/js-libp2p/commit/7c3371b))
* correct release readme ([c4bc00b](https://github.com/libp2p/js-libp2p/commit/c4bc00b))
* examples readme typos ([#481](https://github.com/libp2p/js-libp2p/issues/481)) ([35ac02d](https://github.com/libp2p/js-libp2p/commit/35ac02d))
* performance bottleneck in stat.js ([#463](https://github.com/libp2p/js-libp2p/issues/463)) ([93a1e42](https://github.com/libp2p/js-libp2p/commit/93a1e42))
* release tokens as soon as they are available ([43440aa](https://github.com/libp2p/js-libp2p/commit/43440aa))
* replace peerInfo addresses with listen addresses ([#485](https://github.com/libp2p/js-libp2p/issues/485)) ([acbbc0f](https://github.com/libp2p/js-libp2p/commit/acbbc0f))
* token release logic ([1838a64](https://github.com/libp2p/js-libp2p/commit/1838a64))
### Features
* abort all pending dials on stop ([754fbc2](https://github.com/libp2p/js-libp2p/commit/754fbc2))
* add early token recycling in ([24c6037](https://github.com/libp2p/js-libp2p/commit/24c6037))
* add token based dialer ([f8540fa](https://github.com/libp2p/js-libp2p/commit/f8540fa))
* discovery modules ([#486](https://github.com/libp2p/js-libp2p/issues/486)) ([997ee16](https://github.com/libp2p/js-libp2p/commit/997ee16))
* discovery modules from transports should be added ([#510](https://github.com/libp2p/js-libp2p/issues/510)) ([af96dcc](https://github.com/libp2p/js-libp2p/commit/af96dcc))
* peer store ([#470](https://github.com/libp2p/js-libp2p/issues/470)) ([f3e276e](https://github.com/libp2p/js-libp2p/commit/f3e276e))
* registrar ([#471](https://github.com/libp2p/js-libp2p/issues/471)) ([797d8f0](https://github.com/libp2p/js-libp2p/commit/797d8f0))
* support peer-id instances in peer store operations ([#491](https://github.com/libp2p/js-libp2p/issues/491)) ([11ed6bd](https://github.com/libp2p/js-libp2p/commit/11ed6bd))
<a name="0.26.2"></a>
## [0.26.2](https://github.com/libp2p/js-libp2p/compare/v0.26.1...v0.26.2) (2019-09-24)
### Bug Fixes
* pubsub promisify ([#456](https://github.com/libp2p/js-libp2p/issues/456)) ([ae6af20](https://github.com/libp2p/js-libp2p/commit/ae6af20))
<a name="0.26.1"></a>
## [0.26.1](https://github.com/libp2p/js-libp2p/compare/v0.26.0...v0.26.1) (2019-08-21)
### Bug Fixes
* avoid using superstruct interface ([aa95ab9](https://github.com/libp2p/js-libp2p/commit/aa95ab9))
* improve config defaults ([#409](https://github.com/libp2p/js-libp2p/issues/409)) ([3eef695](https://github.com/libp2p/js-libp2p/commit/3eef695)), closes [#406](https://github.com/libp2p/js-libp2p/issues/406)
* pubsub configuration ([#404](https://github.com/libp2p/js-libp2p/issues/404)) ([b0f124b](https://github.com/libp2p/js-libp2p/commit/b0f124b)), closes [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401)
* reference files directly to avoid npm install failures ([#408](https://github.com/libp2p/js-libp2p/issues/408)) ([b3deb35](https://github.com/libp2p/js-libp2p/commit/b3deb35))
* reject rather than throw in get peer info ([#410](https://github.com/libp2p/js-libp2p/issues/410)) ([60b0cbc](https://github.com/libp2p/js-libp2p/commit/60b0cbc)), closes [#400](https://github.com/libp2p/js-libp2p/issues/400)
<a name="0.26.0"></a>
# [0.26.0](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.3...v0.26.0) (2019-08-07)
<a name="0.26.0-rc.3"></a>
# [0.26.0-rc.3](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.2...v0.26.0-rc.3) (2019-08-06)
### Bug Fixes
* promisified methods ([#398](https://github.com/libp2p/js-libp2p/issues/398)) ([ff7a6c8](https://github.com/libp2p/js-libp2p/commit/ff7a6c8))
<a name="0.26.0-rc.2"></a>
# [0.26.0-rc.2](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.1...v0.26.0-rc.2) (2019-08-01)
### Bug Fixes
* dont override methods of created instance ([#394](https://github.com/libp2p/js-libp2p/issues/394)) ([3e95e6f](https://github.com/libp2p/js-libp2p/commit/3e95e6f))
* pubsub default config ([#393](https://github.com/libp2p/js-libp2p/issues/393)) ([f4f3f0f](https://github.com/libp2p/js-libp2p/commit/f4f3f0f))
### Chores
* update switch ([#395](https://github.com/libp2p/js-libp2p/issues/395)) ([684f283](https://github.com/libp2p/js-libp2p/commit/684f283))
### BREAKING CHANGES
* switch configuration has changed.
'blacklistTTL' is now 'denyTTL' and 'blackListAttempts' is now 'denyAttempts'
<a name="0.26.0-rc.1"></a>
# [0.26.0-rc.1](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.0...v0.26.0-rc.1) (2019-07-31)
<a name="0.26.0-rc.0"></a>
# [0.26.0-rc.0](https://github.com/libp2p/js-libp2p/compare/v0.25.5...v0.26.0-rc.0) (2019-07-31)
### Bug Fixes
* make subscribe comply with ipfs interface ([#389](https://github.com/libp2p/js-libp2p/issues/389)) ([9554b05](https://github.com/libp2p/js-libp2p/commit/9554b05))
### Features
* integrate gossipsub by default ([#365](https://github.com/libp2p/js-libp2p/issues/365)) ([791f39a](https://github.com/libp2p/js-libp2p/commit/791f39a))
* promisify all api methods that accept callbacks ([#381](https://github.com/libp2p/js-libp2p/issues/381)) ([df6ef45](https://github.com/libp2p/js-libp2p/commit/df6ef45))
### BREAKING CHANGES
* new configuration for deciding the implementation of pubsub to be used.
In this context, the experimental flags were also removed. See the README for the latest usage.
* The ipfs interface specified that options
should be provided after the handler, not before.
https://github.com/ipfs/interface-js-ipfs-core/blob/v0.109.0/SPEC/PUBSUB.md#pubsubsubscribe
This corrects the order of parameters. See the jsdocs examples
for subscribe to see how it should be used.
<a name="0.25.5"></a>
## [0.25.5](https://github.com/libp2p/js-libp2p/compare/v0.25.4...v0.25.5) (2019-07-12)
### Bug Fixes
* peer routing for delegate router ([#377](https://github.com/libp2p/js-libp2p/issues/377)) ([905c911](https://github.com/libp2p/js-libp2p/commit/905c911)), closes [/github.com/libp2p/go-libp2p-core/blob/6e566d10f4a5447317a66d64c7459954b969bdab/routing/query.go#L15-L24](https://github.com//github.com/libp2p/go-libp2p-core/blob/6e566d10f4a5447317a66d64c7459954b969bdab/routing/query.go/issues/L15-L24)
<a name="0.25.4"></a>
## [0.25.4](https://github.com/libp2p/js-libp2p/compare/v0.25.3...v0.25.4) (2019-06-07)
### Features
* add createLibp2p to generate a PeerInfo instance ([#367](https://github.com/libp2p/js-libp2p/issues/367)) ([04faf18](https://github.com/libp2p/js-libp2p/commit/04faf18))
* pass libp2p as option to transport creation ([#363](https://github.com/libp2p/js-libp2p/issues/363)) ([b06ca1b](https://github.com/libp2p/js-libp2p/commit/b06ca1b))
<a name="0.25.3"></a>
## [0.25.3](https://github.com/libp2p/js-libp2p/compare/v0.25.2...v0.25.3) (2019-05-07)
### Features
* sign pubsub messages ([#362](https://github.com/libp2p/js-libp2p/issues/362)) ([40978a1](https://github.com/libp2p/js-libp2p/commit/40978a1))
<a name="0.25.2"></a>
## [0.25.2](https://github.com/libp2p/js-libp2p/compare/v0.25.1...v0.25.2) (2019-04-17)
### Bug Fixes
* dht config ([#359](https://github.com/libp2p/js-libp2p/issues/359)) ([f3801f0](https://github.com/libp2p/js-libp2p/commit/f3801f0))
<a name="0.25.1"></a>
## [0.25.1](https://github.com/libp2p/js-libp2p/compare/v0.25.0...v0.25.1) (2019-04-16)
### Bug Fixes
* bail when discovering self ([#357](https://github.com/libp2p/js-libp2p/issues/357)) ([f28dffb](https://github.com/libp2p/js-libp2p/commit/f28dffb))
<a name="0.25.0"></a>
# [0.25.0](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.6...v0.25.0) (2019-04-12)

View File

@ -1,8 +1,8 @@
# Contributing guidelines
libp2p as a project, including js-libp2p and all of its modules, follows the [standard IPFS Community contributing guidelines](https://github.com/ipfs/community/blob/master/contribution-guidelines.md).
libp2p as a project, including js-libp2p and all of its modules, follows the [standard IPFS Community contributing guidelines](https://github.com/ipfs/community/blob/master/CONTRIBUTING.md).
We also adhere to the [IPFS JavaScript Community contributing guidelines](https://github.com/ipfs/community/blob/master/js-code-guidelines.md) which provide additional information of how to collaborate and contribute in the JavaScript implementation of libp2p.
We also adhere to the [IPFS JavaScript Community contributing guidelines](https://github.com/ipfs/community/blob/master/CONTRIBUTING_JS.md) which provide additional information of how to collaborate and contribute in the JavaScript implementation of libp2p.
We appreciate your time and attention for going over these. Please open an issue on [ipfs/community](https://github.com/ipfs/community) if you have any question.

View File

@ -37,7 +37,7 @@ One of following:
<!--
This is for you! Please read, and then delete this text before posting it.
The js-ipfs issues are only for bug reports and directly actionable features.
The js-libp2p issues are only for bug reports and directly actionable features.
Read https://github.com/ipfs/community/blob/master/CONTRIBUTING.md#reporting-issues if your issue doesn't fit either of those categories.
-->

45
MIGRATION_TEMPLATE.md Normal file
View File

@ -0,0 +1,45 @@
<!--Specify versions for migration below-->
# Migrating to libp2p@__
A migration guide for refactoring your application code from libp2p v__ to v__.
## Table of Contents
- [API](#api)
- [Module Updates](#module-updates)
## API
<!--Describe breaking APIs with examples for Before and After
Example:
### Peer Discovery
__Describe__
**Before**
```js
```
**After**
```js
```
-->
## Module Updates
With this release you should update the following libp2p modules if you are relying on them:
<!--Specify module versions in JSON for migration below.
It's recommended to check package.json changes for this:
`git diff <release> <prev> -- package.json`
-->
```json
```

550
README.md
View File

@ -5,11 +5,14 @@
<h3 align="center">The JavaScript implementation of the libp2p Networking Stack.</h3>
<p align="center">
<a href="http://ipn.io"><img src="https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square" /></a>
<a href="http://protocol.ai"><img src="https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square" /></a>
<a href="http://libp2p.io/"><img src="https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square" /></a>
<a href="http://webchat.freenode.net/?channels=%23libp2p"><img src="https://img.shields.io/badge/freenode-%23libp2p-yellow.svg?style=flat-square" /></a>
<a href="https://riot.im/app/#/room/#libp2p:matrix.org"><img src="https://img.shields.io/badge/matrix-%23libp2p%3Apermaweb.io-blue.svg?style=flat-square" /> </a>
<a href="https://discord.gg/66KBrm2"><img src="https://img.shields.io/discord/475789330380488707?color=blueviolet&label=discord&style=flat-square" /></a>
<a href="https://discuss.libp2p.io"><img src="https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg" /></a>
<a href="https://waffle.io/libp2p/libp2p"><img src="https://img.shields.io/badge/pm-waffle-yellow.svg?style=flat-square" /></a>
<a href="https://www.npmjs.com/package/libp2p"><img src="https://img.shields.io/npm/dm/libp2p.svg" /></a>
<a href="https://www.jsdelivr.com/package/npm/libp2p"><img src="https://data.jsdelivr.com/v1/package/npm/libp2p/badge"/></a>
</p>
<p align="center">
@ -29,15 +32,14 @@
We've come a long way, but this project is still in Alpha, lots of development is happening, API might change, beware of the Dragons 🐉..
**Want to get started?** Check our [examples folder](/examples). You can check the development status at the [Waffle Board](https://waffle.io/libp2p/js-libp2p).
The documentation in the master branch may contain changes from a pre-release.
If you are looking for the documentation of the latest release, you can view the latest release on [**npm**](https://www.npmjs.com/package/libp2p), or select the tag in github that matches the version you are looking for.
[![Throughput Graph](https://graphs.waffle.io/libp2p/js-libp2p/throughput.svg)](https://waffle.io/libp2p/js-libp2p/metrics/throughput)
**Want to get started?** Check our [GETTING_STARTED.md](./doc/GETTING_STARTED.md) guide and [examples folder](/examples).
[**`Weekly Core Dev Calls`**](https://github.com/ipfs/pm/issues/650)
**Want to update libp2p in your project?** Check our [migrations folder](./doc/migrations).
## Tech Lead
[David Dias](https://github.com/diasdavid/)
[**`Weekly Core Dev Calls`**](https://github.com/libp2p/team-mgmt/issues/16)
## Lead Maintainer
@ -46,12 +48,12 @@ We've come a long way, but this project is still in Alpha, lots of development i
## Table of Contents
- [Background](#background)
- [Bundles](#bundles)
- [Install](#install)
- [Usage](#usage)
- [Install](#install)
- [Usage](#usage)
- [Configuration](#configuration)
- [API](#api)
- [Events](#events)
- [Getting Started](#getting-started)
- [Tutorials and Examples](#tutorials-and-examples)
- [Development](#development)
- [Tests](#tests)
- [Packages](#packages)
@ -60,7 +62,7 @@ We've come a long way, but this project is still in Alpha, lots of development i
## Background
libp2p is the product of a long and arduous quest to understand the evolution of the Internet networking stack. In order to build P2P applications, devs have long had to made custom ad-hoc solutions to fit their needs, sometimes making some hard assumptions about their runtimes and the state of the network at the time of their development. Today, looking back more than 20 years, we see a clear pattern in the types of mechanisms built around the Internet Protocol, IP, which can be found throughout many layers of the OSI layer system, libp2p distils these mechanisms into flat categories and defines clear interfaces that once exposed, enable other protocols and applications to use and swap them, enabling upgradability and adaptability for the runtime, without breaking the API.
libp2p is the product of a long and arduous quest to understand the evolution of the Internet networking stack. In order to build P2P applications, devs have long had to make custom ad-hoc solutions to fit their needs, sometimes making some hard assumptions about their runtimes and the state of the network at the time of their development. Today, looking back more than 20 years, we see a clear pattern in the types of mechanisms built around the Internet Protocol, IP, which can be found throughout many layers of the OSI layer system, libp2p distils these mechanisms into flat categories and defines clear interfaces that once exposed, enable other protocols and applications to use and swap them, enabling upgradability and adaptability for the runtime, without breaking the API.
We are in the process of writing better documentation, blog posts, tutorials and a formal specification. Today you can find:
@ -75,438 +77,37 @@ We are in the process of writing better documentation, blog posts, tutorials and
To sum up, libp2p is a "network stack" -- a protocol suite -- that cleanly separates concerns, and enables sophisticated applications to only use the protocols they absolutely need, without giving up interoperability and upgradeability. libp2p grew out of IPFS, but it is built so that lots of people can use it, for lots of different projects.
## Bundles
With its modular nature, libp2p can be found being used in different projects with different sets of features, while preserving the same top level API. `js-libp2p` is only a skeleton and should not be installed directly, if you are looking for a prebundled libp2p stack, please check:
- [libp2p-ipfs-nodejs](https://github.com/ipfs/js-ipfs/tree/master/src/core/runtime/libp2p-nodejs.js) - The libp2p build used by js-ipfs when run in Node.js
- [libp2p-ipfs-browser](https://github.com/ipfs/js-ipfs/tree/master/src/core/runtime/libp2p-browser.js) - The libp2p build used by js-ipfs when run in a Browser (that supports WebRTC)
If you have developed a libp2p bundle, please consider submitting it to this list so that it can be found easily by the users of libp2p.
## Install
Again, as noted above, this module is only a skeleton and should not be used directly other than libp2p bundle implementors that want to extend its code.
```sh
npm install --save libp2p
npm install libp2p
```
## Usage
### [Tutorials and Examples](/examples)
### Configuration
You can find multiple examples on the [examples folder](/examples) that will guide you through using libp2p for several scenarios.
### Creating your own libp2p bundle
The libp2p module acts as a glue for every libp2p module that you can use to create your own libp2p bundle. Creating your own libp2p bundle gives you a lot of freedom when it comes to customize it with features and default setup. We recommend creating your own libp2p bundle for the app you are developing that takes in account your needs (e.g. for a browser working version of libp2p that acts as the network layer of IPFS, we have a built one that leverages the Browser transports).
**Example:**
```JavaScript
// Creating a bundle that adds:
// transport: websockets + tcp
// stream-muxing: spdy & mplex
// crypto-channel: secio
// discovery: multicast-dns
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const WS = require('libp2p-websockets')
const SPDY = require('libp2p-spdy')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const MulticastDNS = require('libp2p-mdns')
const DHT = require('libp2p-kad-dht')
const defaultsDeep = require('@nodeutils/defaults-deep')
const Protector = require('libp2p-pnet')
const DelegatedPeerRouter = require('libp2p-delegated-peer-routing')
const DelegatedContentRouter = require('libp2p-delegated-content-routing')
class Node extends libp2p {
constructor (_options) {
const peerInfo = _options.peerInfo
const defaults = {
// The libp2p modules for this libp2p bundle
modules: {
transport: [
TCP,
new WS() // It can take instances too!
],
streamMuxer: [
SPDY,
MPLEX
],
connEncryption: [
SECIO
],
/** Encryption for private networks. Needs additional private key to work **/
// connProtector: new Protector(/*protector specific opts*/),
/** Enable custom content routers, such as delegated routing **/
// contentRouting: [
// new DelegatedContentRouter(peerInfo.id)
// ],
/** Enable custom peer routers, such as delegated routing **/
// peerRouting: [
// new DelegatedPeerRouter()
// ],
peerDiscovery: [
MulticastDNS
],
dht: DHT // DHT enables PeerRouting, ContentRouting and DHT itself components
},
// libp2p config options (typically found on a config.json)
config: { // The config object is the part of the config that can go into a file, config.json.
peerDiscovery: {
autoDial: true, // Auto connect to discovered peers (limited by ConnectionManager minPeers)
mdns: { // mdns options
interval: 1000, // ms
enabled: true
},
webrtcStar: { // webrtc-star options
interval: 1000, // ms
enabled: false
}
// .. other discovery module options.
},
relay: { // Circuit Relay options
enabled: true,
hop: {
enabled: false,
active: false
}
},
dht: {
kBucketSize: 20,
enabled: true,
enabledDiscovery: true // Allows to disable discovery (enabled by default)
},
// Enable/Disable Experimental features
EXPERIMENTAL: { // Experimental features ("behind a flag")
pubsub: false
}
}
}
// overload any defaults of your bundle using https://github.com/nodeutils/defaults-deep
super(defaultsDeep(_options, defaults))
}
}
// Now all the nodes you create, will have TCP, WebSockets, SPDY, MPLEX, SECIO and MulticastDNS support.
```
For all the information on how you can configure libp2p see [CONFIGURATION.md](./doc/CONFIGURATION.md).
### API
#### Create a Node - `new libp2p.Node(options)`
The specification is available on [API.md](./doc/API.md).
> Creates an instance of the libp2p.Node.
### Getting started
Required keys in the `options` object:
If you are starting your journey with `js-libp2p`, read the [GETTING_STARTED.md](./doc/GETTING_STARTED.md) guide.
- `peerInfo`: instance of [PeerInfo][] that contains the [PeerId][], Keys and [multiaddrs][multiaddr] of the libp2p Node.
### Tutorials and Examples
#### `libp2p.start(callback)`
> Start the libp2p Node.
`callback` following signature `function (err) {}`, where `err` is an Error in case starting the node fails.
#### `libp2p.stop(callback)`
> Stop the libp2p Node.
`callback` following signature `function (err) {}`, where `err` is an Error in case stopping the node fails.
#### `libp2p.dial(peer, callback)`
> Dials to another peer in the network, establishes the connection.
- `peer`: can be an instance of [PeerInfo][], [PeerId][], [multiaddr][], or a multiaddr string
- `callback` following signature `function (err, conn) {}`, where `err` is an Error in of failure to dial the connection and `conn` is a [Connection][] instance in case of a protocol selected, if not it is undefined.
#### `libp2p.dialProtocol(peer, protocol, callback)`
> Dials to another peer in the network and selects a protocol to talk with that peer.
- `peer`: can be an instance of [PeerInfo][], [PeerId][], [multiaddr][], or a multiaddr string
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
- `callback`: Function with signature `function (err, conn) {}`, where `conn` is a [Connection](https://github.com/libp2p/interface-connection) object
`callback` following signature `function (err, conn) {}`, where `err` is an Error in of failure to dial the connection and `conn` is a [Connection][] instance in case of a protocol selected, if not it is undefined.
#### `libp2p.dialFSM(peer, protocol, callback)`
> Behaves like `.dial` and `.dialProtocol` but calls back with a Connection State Machine
- `peer`: can be an instance of [PeerInfo][], [PeerId][], [multiaddr][], or a multiaddr string
- `protocol`: an optional String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
- `callback`: following signature `function (err, connFSM) {}`, where `connFSM` is a [Connection State Machine](https://github.com/libp2p/js-libp2p-switch#connection-state-machine)
#### `libp2p.hangUp(peer, callback)`
> Closes an open connection with a peer, graciously.
- `peer`: can be an instance of [PeerInfo][], [PeerId][] or [multiaddr][]
`callback` following signature `function (err) {}`, where `err` is an Error in case stopping the node fails.
#### `libp2p.peerRouting.findPeer(id, options, callback)`
> Looks up for multiaddrs of a peer in the DHT
- `id`: instance of [PeerId][]
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
#### `libp2p.contentRouting.findProviders(key, options, callback)`
- `key`: Buffer
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
- `options.maxNumProviders` maximum number of providers to find
#### `libp2p.contentRouting.provide(key, callback)`
- `key`: Buffer
#### `libp2p.handle(protocol, handlerFunc [, matchFunc])`
> Handle new protocol
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
- `handlerFunc`: following signature `function (protocol, conn) {}`, where `conn` is a [Connection](https://github.com/libp2p/interface-connection) object
- `matchFunc`: Function for matching on protocol (exact matching, semver, etc). Default to exact match.
#### `libp2p.unhandle(protocol)`
> Stop handling protocol
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0')
#### Events
##### `libp2p.on('start', () => {})`
> Libp2p has started, along with all its services.
##### `libp2p.on('stop', () => {})`
> Libp2p has stopped, along with all its services.
##### `libp2p.on('error', (err) => {})`
> An error has occurred
- `err`: instance of `Error`
##### `libp2p.on('peer:discovery', (peer) => {})`
> Peer has been discovered.
If `autoDial` is `true`, applications should **not** attempt to connect to the peer
unless they are performing a specific action. See [peer discovery and auto dial](./PEER_DISCOVERY.md) for more information.
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('peer:connect', (peer) => {})`
> We have a new muxed connection to a peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('peer:disconnect', (peer) => {})`
> We have closed a connection to a peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('connection:start', (peer) => {})`
> We created a new connection to a peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('connection:end', (peer) => {})`
> We closed a connection to a peer
- `peer`: instance of [PeerInfo][]
#### `libp2p.isStarted()`
> Check if libp2p is started
#### `libp2p.ping(peer [, options], callback)`
> Ping a node in the network
#### `libp2p.peerBook`
> PeerBook instance of the node
#### `libp2p.peerInfo`
> PeerInfo instance of the node
#### `libp2p.pubsub`
> Same API as IPFS PubSub, defined in the [CORE API Spec](https://github.com/ipfs/interface-ipfs-core/blob/master/SPEC/PUBSUB.md). Just replace `ipfs` by `libp2p` and you are golden.
---------------------
`DHT methods also exposed for the time being`
#### `libp2p.dht.put(key, value, callback)`
- `key`: Buffer
- `value`: Buffer
#### `libp2p.dht.get(key, options, callback)`
- `key`: Buffer
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
#### `libp2p.dht.getMany(key, nVals, options, callback)`
- `key`: Buffer
- `nVals`: Number
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
[PeerInfo]: https://github.com/libp2p/js-peer-info
[PeerId]: https://github.com/libp2p/js-peer-id
[PeerBook]: https://github.com/libp2p/js-peer-book
[multiaddr]: https://github.com/multiformats/js-multiaddr
[Connection]: https://github.com/libp2p/interface-connection
-------
### Switch Stats API
##### `libp2p.stats.emit('update')`
Every time any stat value changes, this object emits an `update` event.
#### Global stats
##### `libp2p.stats.global.snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.global.movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-transport stats
##### `libp2p.stats.transports()`
Returns an array containing the tags (string) for each observed transport.
##### `libp2p.stats.forTransport(transportTag).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.forTransport(transportTag).movingAverages`
Returns an object containing the following keys:
dataSent
dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-protocol stats
##### `libp2p.stats.protocols()`
Returns an array containing the tags (string) for each observed protocol.
##### `libp2p.stats.forProtocol(protocolTag).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.forProtocol(protocolTag).movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-peer stats
##### `libp2p.stats.peers()`
Returns an array containing the peerIDs (B58-encoded string) for each observed peer.
##### `libp2p.stats.forPeer(peerId:String).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `libp2p.stats.forPeer(peerId:String).movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Stats update interval
Stats are not updated in real-time. Instead, measurements are buffered and stats are updated at an interval. The maximum interval can be defined through the `Switch` constructor option `stats.computeThrottleTimeout`, defined in miliseconds.
### Private Networks
#### Enforcement
Libp2p provides support for connection protection, such as for private networks. You can enforce network protection by setting the environment variable `LIBP2P_FORCE_PNET=1`. When this variable is on, if no protector is set via `options.connProtector`, Libp2p will throw an error upon creation.
#### Protectors
Some available network protectors:
* [libp2p-pnet](https://github.com/libp2p/js-libp2p-pnet)
You can find multiple examples on the [examples folder](./examples) that will guide you through using libp2p for several scenarios.
## Development
**Clone and install dependencies:**
```sh
> git clone https://github.com/ipfs/js-ipfs.git
> cd js-ipfs
> git clone https://github.com/libp2p/js-libp2p.git
> cd js-libp2p
> npm install
```
@ -533,67 +134,46 @@ List of packages currently in existence for libp2p
| Package | Version | Deps | CI | Coverage | Lead Maintainer |
| ---------|---------|---------|---------|---------|--------- |
| **Libp2p** |
| [`interface-libp2p`](//github.com/libp2p/interface-libp2p) | [![npm](https://img.shields.io/npm/v/interface-libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/interface-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/interface-libp2p) | [![Travis CI](https://travis-ci.com/libp2p/interface-libp2p.svg?branch=master)](https://travis-ci.com/libp2p/interface-libp2p) | [![codecov](https://codecov.io/gh/libp2p/interface-libp2p/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-libp2p) | N/A |
| [`libp2p`](//github.com/libp2p/js-libp2p) | [![npm](https://img.shields.io/npm/v/libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Connection** |
| [`interface-connection`](//github.com/libp2p/interface-connection) | [![npm](https://img.shields.io/npm/v/interface-connection.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-connection/releases) | [![Deps](https://david-dm.org/libp2p/interface-connection.svg?style=flat-square)](https://david-dm.org/libp2p/interface-connection) | [![Travis CI](https://travis-ci.com/libp2p/interface-connection.svg?branch=master)](https://travis-ci.com/libp2p/interface-connection) | [![codecov](https://codecov.io/gh/libp2p/interface-connection/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-connection) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Transport** |
| [`interface-transport`](//github.com/libp2p/interface-transport) | [![npm](https://img.shields.io/npm/v/interface-transport.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-transport/releases) | [![Deps](https://david-dm.org/libp2p/interface-transport.svg?style=flat-square)](https://david-dm.org/libp2p/interface-transport) | [![Travis CI](https://travis-ci.com/libp2p/interface-transport.svg?branch=master)](https://travis-ci.com/libp2p/interface-transport) | [![codecov](https://codecov.io/gh/libp2p/interface-transport/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-transport) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-tcp`](//github.com/libp2p/js-libp2p-tcp) | [![npm](https://img.shields.io/npm/v/libp2p-tcp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-tcp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-tcp) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-tcp.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-tcp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-tcp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-tcp) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-udp`](//github.com/libp2p/js-libp2p-udp) | [![npm](https://img.shields.io/npm/v/libp2p-udp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-udp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-udp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-udp) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-udp.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-udp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-udp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-udp) | N/A |
| [`libp2p-udt`](//github.com/libp2p/js-libp2p-udt) | [![npm](https://img.shields.io/npm/v/libp2p-udt.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-udt/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-udt.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-udt) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-udt.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-udt) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-udt/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-udt) | N/A |
| [`libp2p-utp`](//github.com/libp2p/js-libp2p-utp) | [![npm](https://img.shields.io/npm/v/libp2p-utp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-utp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-utp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-utp) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-utp.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-utp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-utp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-utp) | N/A |
| [`libp2p-webrtc-direct`](//github.com/libp2p/js-libp2p-webrtc-direct) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-direct.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-direct/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-direct.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-direct) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-webrtc-direct.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-direct) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-webrtc-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websockets`](//github.com/libp2p/js-libp2p-websockets) | [![npm](https://img.shields.io/npm/v/libp2p-websockets.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websockets/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websockets.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websockets) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websockets.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websockets) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websockets/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websockets) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websocket-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websocket-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-websocket-star-rendezvous`](//github.com/libp2p/js-libp2p-websocket-star-rendezvous) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star-rendezvous.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star-rendezvous/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websocket-star-rendezvous.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websocket-star-rendezvous) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Crypto Channels** |
| [`libp2p-secio`](//github.com/libp2p/js-libp2p-secio) | [![npm](https://img.shields.io/npm/v/libp2p-secio.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-secio/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-secio.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-secio) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-secio.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-secio) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-secio/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-secio) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| **Stream Muxers** |
| [`interface-stream-muxer`](//github.com/libp2p/interface-stream-muxer) | [![npm](https://img.shields.io/npm/v/interface-stream-muxer.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-stream-muxer/releases) | [![Deps](https://david-dm.org/libp2p/interface-stream-muxer.svg?style=flat-square)](https://david-dm.org/libp2p/interface-stream-muxer) | [![Travis CI](https://travis-ci.com/libp2p/interface-stream-muxer.svg?branch=master)](https://travis-ci.com/libp2p/interface-stream-muxer) | [![codecov](https://codecov.io/gh/libp2p/interface-stream-muxer/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-stream-muxer) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-mplex`](//github.com/libp2p/js-libp2p-mplex) | [![npm](https://img.shields.io/npm/v/libp2p-mplex.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mplex/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mplex.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mplex) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-mplex.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-mplex) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mplex/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-mplex) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-spdy`](//github.com/libp2p/js-libp2p-spdy) | [![npm](https://img.shields.io/npm/v/libp2p-spdy.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-spdy/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-spdy.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-spdy) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-spdy.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-spdy) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-spdy/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-spdy) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Discovery** |
| [`interface-peer-discovery`](//github.com/libp2p/interface-peer-discovery) | [![npm](https://img.shields.io/npm/v/interface-peer-discovery.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-peer-discovery/releases) | [![Deps](https://david-dm.org/libp2p/interface-peer-discovery.svg?style=flat-square)](https://david-dm.org/libp2p/interface-peer-discovery) | [![Travis CI](https://travis-ci.com/libp2p/interface-peer-discovery.svg?branch=master)](https://travis-ci.com/libp2p/interface-peer-discovery) | [![codecov](https://codecov.io/gh/libp2p/interface-peer-discovery/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-peer-discovery) | N/A |
| [`libp2p-bootstrap`](//github.com/libp2p/js-libp2p-bootstrap) | [![npm](https://img.shields.io/npm/v/libp2p-bootstrap.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-bootstrap/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-bootstrap.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-bootstrap) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-bootstrap.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-bootstrap) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-bootstrap/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-bootstrap) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-kad-dht.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-mdns`](//github.com/libp2p/js-libp2p-mdns) | [![npm](https://img.shields.io/npm/v/libp2p-mdns.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mdns/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mdns.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mdns) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-mdns.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-mdns) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mdns/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-mdns) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-rendezvous`](//github.com/libp2p/js-libp2p-rendezvous) | [![npm](https://img.shields.io/npm/v/libp2p-rendezvous.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-rendezvous/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-rendezvous.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-rendezvous) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-rendezvous.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-rendezvous) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-rendezvous/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-rendezvous) | N/A |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-webrtc-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websocket-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websocket-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **NAT Traversal** |
| [`libp2p-circuit`](//github.com/libp2p/js-libp2p-circuit) | [![npm](https://img.shields.io/npm/v/libp2p-circuit.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-circuit/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-circuit.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-circuit) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-circuit.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-circuit) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-circuit/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-circuit) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-nat-mngr`](//github.com/libp2p/js-libp2p-nat-mngr) | [![npm](https://img.shields.io/npm/v/libp2p-nat-mngr.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-nat-mngr/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-nat-mngr.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-nat-mngr) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-nat-mngr.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-nat-mngr) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr) | N/A |
| **Data Types** |
| [`peer-book`](//github.com/libp2p/js-peer-book) | [![npm](https://img.shields.io/npm/v/peer-book.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-book/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-book.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-book) | [![Travis CI](https://travis-ci.com/libp2p/js-peer-book.svg?branch=master)](https://travis-ci.com/libp2p/js-peer-book) | [![codecov](https://codecov.io/gh/libp2p/js-peer-book/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-book) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-id`](//github.com/libp2p/js-peer-id) | [![npm](https://img.shields.io/npm/v/peer-id.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-id/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-id.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-id) | [![Travis CI](https://travis-ci.com/libp2p/js-peer-id.svg?branch=master)](https://travis-ci.com/libp2p/js-peer-id) | [![codecov](https://codecov.io/gh/libp2p/js-peer-id/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-id) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-info`](//github.com/libp2p/js-peer-info) | [![npm](https://img.shields.io/npm/v/peer-info.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-info/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-info.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-info) | [![Travis CI](https://travis-ci.com/libp2p/js-peer-info.svg?branch=master)](https://travis-ci.com/libp2p/js-peer-info) | [![codecov](https://codecov.io/gh/libp2p/js-peer-info/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-info) | [Pedro Teixeira](mailto:i@pgte.me) |
| **Content Routing** |
| [`interface-content-routing`](//github.com/libp2p/interface-content-routing) | [![npm](https://img.shields.io/npm/v/interface-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/interface-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/interface-content-routing) | [![Travis CI](https://travis-ci.com/libp2p/interface-content-routing.svg?branch=master)](https://travis-ci.com/libp2p/interface-content-routing) | [![codecov](https://codecov.io/gh/libp2p/interface-content-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-content-routing) | N/A |
| [`libp2p-delegated-content-routing`](//github.com/libp2p/js-libp2p-delegated-content-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-delegated-content-routing.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-delegated-content-routing) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-kad-dht.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Peer Routing** |
| [`interface-peer-routing`](//github.com/libp2p/interface-peer-routing) | [![npm](https://img.shields.io/npm/v/interface-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/interface-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/interface-peer-routing) | [![Travis CI](https://travis-ci.com/libp2p/interface-peer-routing.svg?branch=master)](https://travis-ci.com/libp2p/interface-peer-routing) | [![codecov](https://codecov.io/gh/libp2p/interface-peer-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-peer-routing) | N/A |
| [`libp2p-delegated-peer-routing`](//github.com/libp2p/js-libp2p-delegated-peer-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-delegated-peer-routing.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-delegated-peer-routing) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-kad-dht.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Record Store** |
| [`interface-record-store`](//github.com/libp2p/interface-record-store) | [![npm](https://img.shields.io/npm/v/interface-record-store.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-record-store/releases) | [![Deps](https://david-dm.org/libp2p/interface-record-store.svg?style=flat-square)](https://david-dm.org/libp2p/interface-record-store) | [![Travis CI](https://travis-ci.com/libp2p/interface-record-store.svg?branch=master)](https://travis-ci.com/libp2p/interface-record-store) | [![codecov](https://codecov.io/gh/libp2p/interface-record-store/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-record-store) | N/A |
| [`libp2p-record`](//github.com/libp2p/js-libp2p-record) | [![npm](https://img.shields.io/npm/v/libp2p-record.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-record/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-record.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-record) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-record.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-record) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-record/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-record) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Generics** |
| [`libp2p-connection-manager`](//github.com/libp2p/js-libp2p-connection-manager) | [![npm](https://img.shields.io/npm/v/libp2p-connection-manager.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-connection-manager/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-connection-manager.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-connection-manager) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-connection-manager.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-connection-manager) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-connection-manager/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-connection-manager) | N/A |
| [`libp2p-crypto`](//github.com/libp2p/js-libp2p-crypto) | [![npm](https://img.shields.io/npm/v/libp2p-crypto.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-crypto.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-crypto) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-crypto) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-crypto-secp256k1`](//github.com/libp2p/js-libp2p-crypto-secp256k1) | [![npm](https://img.shields.io/npm/v/libp2p-crypto-secp256k1.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto-secp256k1/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-crypto-secp256k1.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-crypto-secp256k1) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-switch`](//github.com/libp2p/js-libp2p-switch) | [![npm](https://img.shields.io/npm/v/libp2p-switch.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-switch/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-switch.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-switch) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-switch.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-switch) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-switch/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-switch) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Extensions** |
| [`libp2p-floodsub`](//github.com/libp2p/js-libp2p-floodsub) | [![npm](https://img.shields.io/npm/v/libp2p-floodsub.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-floodsub/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-floodsub.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-floodsub) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-floodsub.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-floodsub) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-floodsub/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-floodsub) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-identify`](//github.com/libp2p/js-libp2p-identify) | [![npm](https://img.shields.io/npm/v/libp2p-identify.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-identify/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-identify.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-identify) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-identify.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-identify) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-identify/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-identify) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-keychain`](//github.com/libp2p/js-libp2p-keychain) | [![npm](https://img.shields.io/npm/v/libp2p-keychain.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-keychain/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-keychain.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-keychain) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-keychain.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-keychain) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-keychain/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-keychain) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-ping`](//github.com/libp2p/js-libp2p-ping) | [![npm](https://img.shields.io/npm/v/libp2p-ping.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-ping/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-ping.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-ping) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-ping.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-ping) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-ping/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-ping) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-pnet`](//github.com/libp2p/js-libp2p-pnet) | [![npm](https://img.shields.io/npm/v/libp2p-pnet.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-pnet/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-pnet.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-pnet) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-pnet.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-pnet) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-pnet/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-pnet) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Utilities** |
| [`p2pcat`](//github.com/libp2p/js-p2pcat) | [![npm](https://img.shields.io/npm/v/p2pcat.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-p2pcat/releases) | [![Deps](https://david-dm.org/libp2p/js-p2pcat.svg?style=flat-square)](https://david-dm.org/libp2p/js-p2pcat) | [![Travis CI](https://travis-ci.com/libp2p/js-p2pcat.svg?branch=master)](https://travis-ci.com/libp2p/js-p2pcat) | [![codecov](https://codecov.io/gh/libp2p/js-p2pcat/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-p2pcat) | N/A |
| **libp2p** |
| [`libp2p`](//github.com/libp2p/js-libp2p) | [![npm](https://img.shields.io/npm/v/libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p/master)](https://travis-ci.com/libp2p/js-libp2p) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-daemon`](//github.com/libp2p/js-libp2p-daemon) | [![npm](https://img.shields.io/npm/v/libp2p-daemon.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-daemon/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-daemon.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-daemon) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-daemon/master)](https://travis-ci.com/libp2p/js-libp2p-daemon) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-daemon/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-daemon) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-daemon-client`](//github.com/libp2p/js-libp2p-daemon-client) | [![npm](https://img.shields.io/npm/v/libp2p-daemon-client.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-daemon-client/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-daemon-client.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-daemon-client) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-daemon-client/master)](https://travis-ci.com/libp2p/js-libp2p-daemon-client) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-daemon-client/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-daemon-client) | [Vasco Santos](mailto:santos.vasco10@gmail.com) |
| [`libp2p-interfaces`](//github.com/libp2p/js-interfaces) | [![npm](https://img.shields.io/npm/v/libp2p-interfaces.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-interfaces/releases) | [![Deps](https://david-dm.org/libp2p/js-interfaces.svg?style=flat-square)](https://david-dm.org/libp2p/js-interfaces) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-interfaces/master)](https://travis-ci.com/libp2p/js-interfaces) | [![codecov](https://codecov.io/gh/libp2p/js-interfaces/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-interfaces) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`interop-libp2p`](//github.com/libp2p/interop) | [![npm](https://img.shields.io/npm/v/interop-libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interop/releases) | [![Deps](https://david-dm.org/libp2p/interop.svg?style=flat-square)](https://david-dm.org/libp2p/interop) | [![Travis CI](https://flat.badgen.net/travis/libp2p/interop/master)](https://travis-ci.com/libp2p/interop) | [![codecov](https://codecov.io/gh/libp2p/interop/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/interop) | [Vasco Santos](mailto:santos.vasco10@gmail.com) |
| **transports** |
| [`libp2p-tcp`](//github.com/libp2p/js-libp2p-tcp) | [![npm](https://img.shields.io/npm/v/libp2p-tcp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-tcp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-tcp) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-tcp/master)](https://travis-ci.com/libp2p/js-libp2p-tcp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-tcp/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-tcp) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-webrtc-direct`](//github.com/libp2p/js-libp2p-webrtc-direct) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-direct.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-direct/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-direct.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-direct) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-webrtc-direct/master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-direct) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-webrtc-star/master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websockets`](//github.com/libp2p/js-libp2p-websockets) | [![npm](https://img.shields.io/npm/v/libp2p-websockets.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websockets/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websockets.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websockets) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-websockets/master)](https://travis-ci.com/libp2p/js-libp2p-websockets) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websockets/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-websockets) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **secure channels** |
| [`libp2p-noise`](//github.com/NodeFactoryIo/js-libp2p-noise) | [![npm](https://img.shields.io/npm/v/libp2p-noise.svg?maxAge=86400&style=flat-square)](//github.com/NodeFactoryIo/js-libp2p-noise/releases) | [![Deps](https://david-dm.org/NodeFactoryIo/js-libp2p-noise.svg?style=flat-square)](https://david-dm.org/NodeFactoryIo/js-libp2p-noise) | [![Travis CI](https://flat.badgen.net/travis/NodeFactoryIo/js-libp2p-noise/master)](https://travis-ci.com/NodeFactoryIo/js-libp2p-noise) | [![codecov](https://codecov.io/gh/NodeFactoryIo/js-libp2p-noise/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/NodeFactoryIo/js-libp2p-noise) | N/A |
| [`libp2p-secio`](//github.com/libp2p/js-libp2p-secio) | [![npm](https://img.shields.io/npm/v/libp2p-secio.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-secio/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-secio.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-secio) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-secio/master)](https://travis-ci.com/libp2p/js-libp2p-secio) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-secio/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-secio) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| **stream multiplexers** |
| [`libp2p-mplex`](//github.com/libp2p/js-libp2p-mplex) | [![npm](https://img.shields.io/npm/v/libp2p-mplex.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mplex/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mplex.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mplex) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-mplex/master)](https://travis-ci.com/libp2p/js-libp2p-mplex) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mplex/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-mplex) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **peer discovery** |
| [`libp2p-bootstrap`](//github.com/libp2p/js-libp2p-bootstrap) | [![npm](https://img.shields.io/npm/v/libp2p-bootstrap.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-bootstrap/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-bootstrap.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-bootstrap) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-bootstrap/master)](https://travis-ci.com/libp2p/js-libp2p-bootstrap) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-bootstrap/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-bootstrap) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-kad-dht/master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-mdns`](//github.com/libp2p/js-libp2p-mdns) | [![npm](https://img.shields.io/npm/v/libp2p-mdns.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mdns/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mdns.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mdns) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-mdns/master)](https://travis-ci.com/libp2p/js-libp2p-mdns) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mdns/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-mdns) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-webrtc-star/master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`@chainsafe/discv5`](//github.com/ChainSafe/discv5) | [![npm](https://img.shields.io/npm/v/@chainsafe/discv5.svg?maxAge=86400&style=flat-square)](//github.com/ChainSafe/discv5/releases) | [![Deps](https://david-dm.org/ChainSafe/discv5.svg?style=flat-square)](https://david-dm.org/ChainSafe/discv5) | [![Travis CI](https://flat.badgen.net/travis/ChainSafe/discv5/master)](https://travis-ci.com/ChainSafe/discv5) | [![codecov](https://codecov.io/gh/ChainSafe/discv5/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/ChainSafe/discv5) | [Cayman Nava](mailto:caymannava@gmail.com) |
| **content routing** |
| [`libp2p-delegated-content-routing`](//github.com/libp2p/js-libp2p-delegated-content-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-delegated-content-routing/master)](https://travis-ci.com/libp2p/js-libp2p-delegated-content-routing) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-kad-dht/master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **peer routing** |
| [`libp2p-delegated-peer-routing`](//github.com/libp2p/js-libp2p-delegated-peer-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-delegated-peer-routing/master)](https://travis-ci.com/libp2p/js-libp2p-delegated-peer-routing) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-kad-dht/master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **utilities** |
| [`libp2p-crypto`](//github.com/libp2p/js-libp2p-crypto) | [![npm](https://img.shields.io/npm/v/libp2p-crypto.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-crypto/master)](https://travis-ci.com/libp2p/js-libp2p-crypto) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-crypto) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-crypto-secp256k1`](//github.com/libp2p/js-libp2p-crypto-secp256k1) | [![npm](https://img.shields.io/npm/v/libp2p-crypto-secp256k1.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto-secp256k1/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-crypto-secp256k1/master)](https://travis-ci.com/libp2p/js-libp2p-crypto-secp256k1) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| **data types** |
| [`peer-id`](//github.com/libp2p/js-peer-id) | [![npm](https://img.shields.io/npm/v/peer-id.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-id/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-id.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-id) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-peer-id/master)](https://travis-ci.com/libp2p/js-peer-id) | [![codecov](https://codecov.io/gh/libp2p/js-peer-id/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-peer-id) | [Vasco Santos](mailto:santos.vasco10@gmail.com) |
| **pubsub** |
| [`libp2p-pubsub`](//github.com/libp2p/js-libp2p-pubsub) | [![npm](https://img.shields.io/npm/v/libp2p-pubsub.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-pubsub/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-pubsub.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-pubsub) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-pubsub/master)](https://travis-ci.com/libp2p/js-libp2p-pubsub) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-pubsub/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-pubsub) | [Vasco Santos](mailto:santos.vasco10@gmail.com) |
| [`libp2p-floodsub`](//github.com/libp2p/js-libp2p-floodsub) | [![npm](https://img.shields.io/npm/v/libp2p-floodsub.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-floodsub/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-floodsub.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-floodsub) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-floodsub/master)](https://travis-ci.com/libp2p/js-libp2p-floodsub) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-floodsub/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-floodsub) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-gossipsub`](//github.com/ChainSafe/js-libp2p-gossipsub) | [![npm](https://img.shields.io/npm/v/libp2p-gossipsub.svg?maxAge=86400&style=flat-square)](//github.com/ChainSafe/js-libp2p-gossipsub/releases) | [![Deps](https://david-dm.org/ChainSafe/js-libp2p-gossipsub.svg?style=flat-square)](https://david-dm.org/ChainSafe/js-libp2p-gossipsub) | [![Travis CI](https://flat.badgen.net/travis/ChainSafe/js-libp2p-gossipsub/master)](https://travis-ci.com/ChainSafe/js-libp2p-gossipsub) | [![codecov](https://codecov.io/gh/ChainSafe/js-libp2p-gossipsub/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/ChainSafe/js-libp2p-gossipsub) | [Cayman Nava](mailto:caymannava@gmail.com) |
| **extensions** |
| [`libp2p-nat-mgnr`](//github.com/libp2p/js-libp2p-nat-mgnr) | [![npm](https://img.shields.io/npm/v/libp2p-nat-mgnr.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-nat-mgnr/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-nat-mgnr.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-nat-mgnr) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-nat-mgnr/master)](https://travis-ci.com/libp2p/js-libp2p-nat-mgnr) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-nat-mgnr/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-nat-mgnr) | N/A |
| [`libp2p-utils`](//github.com/libp2p/js-libp2p-utils) | [![npm](https://img.shields.io/npm/v/libp2p-utils.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-utils/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-utils.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-utils) | [![Travis CI](https://flat.badgen.net/travis/libp2p/js-libp2p-utils/master)](https://travis-ci.com/libp2p/js-libp2p-utils) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-utils/branch/master/graph/badge.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p-utils) | [Vasco Santos](mailto:santos.vasco10@gmail.com) |
## Contribute

View File

@ -26,6 +26,7 @@
- Documentation
- [ ] Ensure that README.md is up to date
- [ ] Ensure that all the examples run
- [ ] Ensure that [libp2p/docs](https://github.com/libp2p/docs) is updated
- Communication
- [ ] Create the release issue
- [ ] Take a snapshot between of everyone that has contributed to this release (including its subdeps in IPFS, libp2p, IPLD and multiformats) using [`name-your-contributors`](https://www.npmjs.com/package/name-your-contributors). Generate a nice markdown list with [this script](https://gist.github.com/jacobheun/d2ff479ca991733c13cdcf688a1317e5)
@ -33,7 +34,7 @@
- [ ] Twitter
- [ ] IRC
- [ ] Reddit
- [ ] [discuss.ipfs.io](https://discuss.ipfs.io/c/announcements)
- [ ] [discuss.libp2p.io](https://discuss.libp2p.io/c/news)
- [ ] Blog post
- [ ] Copy release notes to the [GitHub Release description](https://github.com/libp2p/js-libp2p/releases)
@ -47,12 +48,12 @@ In alphabetical order, here are all the humans that contributed to the release:
Would you like to contribute to the libp2p project and don't know how? Well, there are a few places you can get started:
- Check the issues with the `help wanted` label at the Ready column in our waffle board - https://waffle.io/libp2p/js-libp2p?label=help%20wanted
- Check the issues with the `help wanted` label in the [libp2p repo](https://github.com/libp2p/js-libp2p/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22)
- Join an IPFS All Hands, introduce yourself and let us know where you would like to contribute - https://github.com/ipfs/team-mgmt#all-hands-call
- Hack with IPFS and show us what you made! The All Hands call is also the perfect venue for demos, join in and show us what you built
- Join the discussion at http://discuss.ipfs.io/ and help users finding their answers.
- Join the [⚡️ⒿⓈ Core Dev Team Weekly Sync 🙌🏽 ](https://github.com/ipfs/team-mgmt/issues/650) and be part of the Sprint action!
- Join the discussion at http://discuss.libp2p.io/ and help users finding their answers.
- Join the [⚡️libp2p Weekly Sync 🙌🏽](https://github.com/libp2p/team-mgmt/issues/16) and be part of the Sprint action!
# ⁉️ Do you have questions?
The best place to ask your questions about libp2p, how it works and what you can do with it is at [discuss.ipfs.io](http://discuss.ipfs.io). We are also available at the #libp2p channel on Freenode.
The best place to ask your questions about libp2p, how it works and what you can do with it is at [discuss.libp2p.io](https://discuss.libp2p.io). We are also available at the #libp2p channel on Freenode.

1888
doc/API.md Normal file

File diff suppressed because it is too large Load Diff

657
doc/CONFIGURATION.md Normal file
View File

@ -0,0 +1,657 @@
# Configuration
- [Configuration](#configuration)
- [Overview](#overview)
- [Modules](#modules)
- [Transport](#transport)
- [Stream Multiplexing](#stream-multiplexing)
- [Connection Encryption](#connection-encryption)
- [Peer Discovery](#peer-discovery)
- [Content Routing](#content-routing)
- [Peer Routing](#peer-routing)
- [DHT](#dht)
- [Pubsub](#pubsub)
- [Customizing libp2p](#customizing-libp2p)
- [Examples](#examples)
- [Basic setup](#basic-setup)
- [Customizing Peer Discovery](#customizing-peer-discovery)
- [Setup webrtc transport and discovery](#setup-webrtc-transport-and-discovery)
- [Customizing Pubsub](#customizing-pubsub)
- [Customizing DHT](#customizing-dht)
- [Setup with Content and Peer Routing](#setup-with-content-and-peer-routing)
- [Setup with Relay](#setup-with-relay)
- [Setup with Keychain](#setup-with-keychain)
- [Configuring Dialing](#configuring-dialing)
- [Configuring Connection Manager](#configuring-connection-manager)
- [Configuring Transport Manager](#configuring-transport-manager)
- [Configuring Metrics](#configuring-metrics)
- [Configuring PeerStore](#configuring-peerstore)
- [Customizing Transports](#customizing-transports)
- [Configuration examples](#configuration-examples)
## Overview
libp2p is a modular networking stack. It's designed to be able to suit a variety of project needs. The configuration of libp2p is a key part of its structure. It enables you to bring exactly what you need, and only what you need. This document is a guide on how to configure libp2p for your particular project. Check out the [Configuration examples](#configuration-examples) section if you're just looking to leverage an existing configuration.
Regardless of how you configure libp2p, the top level [API](./API.md) will always remain the same. **Note**: if some modules are not configured, like Content Routing, using those methods will throw errors.
## Modules
`js-libp2p` acts as the composer for this modular p2p networking stack using libp2p compatible modules as its subsystems. For getting an instance of `js-libp2p` compliant with all types of networking requirements, it is possible to specify the following subsystems:
- Transports
- Multiplexers
- Connection encryption mechanisms
- Peer discovery protocols
- Content routing protocols
- Peer routing protocols
- DHT implementation
- Pubsub router
The libp2p ecosystem contains at least one module for each of these subsystems. The user should install and import the modules that are relevant for their requirements. Moreover, thanks to the existing interfaces it is easy to create a libp2p compatible module and use it.
After selecting the modules to use, it is also possible to configure each one according to your needs.
Bear in mind that only a **transport** and **connection encryption** are required, while all the other subsystems are optional.
### Transport
> In a p2p system, we need to interact with other peers in the network. Transports are used to establish connections between peers. The libp2p transports to use should be decided according to the environment where your node will live, as well as other requirements that you might have.
Some available transports are:
- [libp2p/js-libp2p-tcp](https://github.com/libp2p/js-libp2p-tcp)
- [libp2p/js-libp2p-webrtc-star](https://github.com/libp2p/js-libp2p-webrtc-star)
- [libp2p/js-libp2p-webrtc-direct](https://github.com/libp2p/js-libp2p-webrtc-direct)
- [libp2p/js-libp2p-websockets](https://github.com/libp2p/js-libp2p-websockets)
- [libp2p/js-libp2p-utp](https://github.com/libp2p/js-libp2p-utp) (Work in Progress)
You should take into consideration that `js-libp2p-tcp` and `js-libp2p-utp` are not available in a **browser** environment.
If none of the available transports fulfills your needs, you can create a libp2p compatible transport. A libp2p transport just needs to be compliant with the [Transport Interface](https://github.com/libp2p/js-interfaces/tree/master/src/transport).
If you want to know more about libp2p transports, you should read the following content:
- https://docs.libp2p.io/concepts/transport
- https://github.com/libp2p/specs/tree/master/connections
### Stream Multiplexing
> Libp2p peers will need to communicate with each other through several protocols during their life. Stream multiplexing allows multiple independent logical streams to share a common underlying transport medium, instead of creating a new connection with the same peer per needed protocol.
Some available stream multiplexers are:
- [libp2p/js-libp2p-mplex](https://github.com/libp2p/js-libp2p-mplex)
If none of the available stream multiplexers fulfills your needs, you can create a libp2p compatible stream multiplexer. A libp2p multiplexer just needs to be compliant with the [Stream Muxer Interface](https://github.com/libp2p/js-interfaces/tree/master/src/stream-muxer).
If you want to know more about libp2p stream multiplexing, you should read the following content:
- https://docs.libp2p.io/concepts/stream-multiplexing
- https://github.com/libp2p/specs/tree/master/connections
- https://github.com/libp2p/specs/tree/master/mplex
### Connection Encryption
> A connection encryption mechanism must be used, in order to ensure all exchanged data between two peers is encrypted.
Some available connection encryption protocols:
- [NodeFactoryIo/js-libp2p-noise](https://github.com/NodeFactoryIo/js-libp2p-noise)
- [libp2p/js-libp2p-secio](https://github.com/libp2p/js-libp2p-secio)
If none of the available connection encryption mechanisms fulfills your needs, you can create a libp2p compatible one. A libp2p connection encryption protocol just needs to be compliant with the [Crypto Interface](https://github.com/libp2p/js-interfaces/tree/master/src/crypto).
If you want to know more about libp2p connection encryption, you should read the following content:
- https://docs.libp2p.io/concepts/secure-comms
- https://github.com/libp2p/specs/tree/master/connections
### Peer Discovery
> In a p2p network, peer discovery is critical to a functioning system.
Some available peer discovery modules are:
- [js-libp2p-mdns](https://github.com/libp2p/js-libp2p-mdns)
- [js-libp2p-bootstrap](https://github.com/libp2p/js-libp2p-bootstrap)
- [js-libp2p-kad-dht](https://github.com/libp2p/js-libp2p-kad-dht)
- [js-libp2p-webrtc-star](https://github.com/libp2p/js-libp2p-webrtc-star)
- [discv5](https://github.com/chainsafe/discv5)
**Note**: `peer-discovery` services within transports (such as `js-libp2p-webrtc-star`) are automatically gathered from the `transport`, via it's `discovery` property. As such, they do not need to be added in the discovery modules. However, these transports can also be configured and disabled as the other ones.
If none of the available peer discovery protocols fulfills your needs, you can create a libp2p compatible one. A libp2p peer discovery protocol just needs to be compliant with the [Peer Discovery Interface](https://github.com/libp2p/js-interfaces/tree/master/src/peer-discovery).
If you want to know more about libp2p peer discovery, you should read the following content:
- https://github.com/libp2p/specs/blob/master/discovery/mdns.md
### Content Routing
> Content routing provides a way to find where content lives in the network. It works in two steps: 1) Peers provide (announce) to the network that they are holders of specific content and 2) Peers issue queries to find where that content lives. A Content Routing mechanism could be as complex as a DHT or as simple as a registry somewhere in the network.
Some available content routing modules are:
- [js-libp2p-kad-dht](https://github.com/libp2p/js-libp2p-kad-dht)
- [js-libp2p-delegated-content-routing](https://github.com/libp2p/js-libp2p-delegated-content-routing)
If none of the available content routing protocols fulfills your needs, you can create a libp2p compatible one. A libp2p content routing protocol just needs to be compliant with the [Content Routing Interface](https://github.com/libp2p/js-interfaces/tree/master/src/content-routing). **(WIP: This module is not yet implemented)**
If you want to know more about libp2p content routing, you should read the following content:
- https://docs.libp2p.io/concepts/content-routing
### Peer Routing
> Peer Routing offers a way to find other peers in the network by issuing queries using a Peer Routing algorithm, which may be iterative or recursive. If the algorithm is unable to find the target peer, it will return the peers that are "closest" to the target peer, using a distance metric defined by the algorithm.
Some available peer routing modules are:
- [js-libp2p-kad-dht](https://github.com/libp2p/js-libp2p-kad-dht)
- [js-libp2p-delegated-peer-routing](https://github.com/libp2p/js-libp2p-delegated-peer-routing)
If none of the available peer routing protocols fulfills your needs, you can create a libp2p compatible one. A libp2p peer routing protocol just needs to be compliant with the [Peer Routing Interface](https://github.com/libp2p/js-interfaces/tree/master/src/peer-routing). **(WIP: This module is not yet implemented)**
If you want to know more about libp2p peer routing, you should read the following content:
- https://docs.libp2p.io/concepts/peer-routing
### DHT
> A DHT can provide content and peer routing capabilities in a p2p system, as well as peer discovery capabilities.
The DHT implementation currently available is [libp2p/js-libp2p-kad-dht](https://github.com/libp2p/js-libp2p-kad-dht). This implementation is largely based on the Kademlia whitepaper, augmented with notions from S/Kademlia, Coral and mainlineDHT.
If this DHT implementation does not fulfill your needs and you want to create or use your own implementation, please get in touch with us through a github issue. We plan to work on improving the ability to bring your own DHT in a future release.
If you want to know more about libp2p DHT, you should read the following content:
- https://docs.libp2p.io/concepts/protocols/#kad-dht
- https://github.com/libp2p/specs/pull/108
### Pubsub
> Publish/Subscribe is a system where peers congregate around topics they are interested in. Peers interested in a topic are said to be subscribed to that topic and should receive the data published on it from other peers.
Some available pubsub routers are:
- [libp2p/js-libp2p-floodsub](https://github.com/libp2p/js-libp2p-floodsub)
- [ChainSafe/js-libp2p-gossipsub](https://github.com/ChainSafe/js-libp2p-gossipsub)
If none of the available pubsub routers fulfills your needs, you can create a libp2p compatible one. A libp2p pubsub router just needs to be created on top of [libp2p/js-libp2p-pubsub](https://github.com/libp2p/js-libp2p-pubsub), which ensures `js-libp2p` API expectations.
If you want to know more about libp2p pubsub, you should read the following content:
- https://docs.libp2p.io/concepts/publish-subscribe
- https://github.com/libp2p/specs/tree/master/pubsub
## Customizing libp2p
When [creating a libp2p node](./API.md#create), the modules needed should be specified as follows:
```js
const modules = {
transport: [],
streamMuxer: [],
connEncryption: [],
contentRouting: [],
peerRouting: [],
peerDiscovery: [],
dht: dhtImplementation,
pubsub: pubsubImplementation
}
```
Moreover, the majority of the modules can be customized via option parameters. This way, it is also possible to provide this options through a `config` object. This config object should have the property name of each building block to configure, the same way as the modules specification.
Besides the `modules` and `config`, libp2p allows other internal options and configurations:
- `datastore`: an instance of [ipfs/interface-datastore](https://github.com/ipfs/interface-datastore/) modules.
- This is used in modules such as the DHT. If it is not provided, `js-libp2p` will use an in memory datastore.
- `peerId`: the identity of the node, an instance of [libp2p/js-peer-id](https://github.com/libp2p/js-peer-id).
- This is particularly useful if you want to reuse the same `peer-id`, as well as for modules like `libp2p-delegated-content-routing`, which need a `peer-id` in their instantiation.
- `addresses`: an object containing `listen`, `announce` and `noAnnounce` properties with `Array<string>`:
- `listen` addresses will be provided to the libp2p underlying transports for listening on them.
- `announce` addresses will be used to compute the advertises that the node should advertise to the network.
- `noAnnounce` addresses will be used as a filter to compute the advertises that the node should advertise to the network.
### Examples
#### Basic setup
```js
// Creating a libp2p node with:
// transport: websockets + tcp
// stream-muxing: mplex
// crypto-channel: secio
// discovery: multicast-dns
// dht: kad-dht
// pubsub: gossipsub
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const WS = require('libp2p-websockets')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const MulticastDNS = require('libp2p-mdns')
const DHT = require('libp2p-kad-dht')
const GossipSub = require('libp2p-gossipsub')
const node = await Libp2p.create({
modules: {
transport: [
TCP,
new WS() // It can take instances too!
],
streamMuxer: [MPLEX],
connEncryption: [SECIO],
peerDiscovery: [MulticastDNS],
dht: DHT,
pubsub: GossipSub
}
})
```
#### Customizing Peer Discovery
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const MulticastDNS = require('libp2p-mdns')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO],
peerDiscovery: [MulticastDNS]
},
config: {
peerDiscovery: {
autoDial: true, // Auto connect to discovered peers (limited by ConnectionManager minConnections)
// The `tag` property will be searched when creating the instance of your Peer Discovery service.
// The associated object, will be passed to the service when it is instantiated.
[MulticastDNS.tag]: {
interval: 1000,
enabled: true
}
// .. other discovery module options.
}
}
})
```
#### Setup webrtc transport and discovery
```js
const Libp2p = require('libp2p')
const WS = require('libp2p-websockets')
const WebRTCStar = require('libp2p-webrtc-star')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const node = await Libp2p.create({
modules: {
transport: [
WS,
WebRTCStar
],
streamMuxer: [MPLEX],
connEncryption: [SECIO],
},
config: {
peerDiscovery: {
[WebRTCStar.tag]: {
enabled: true
}
}
}
})
```
#### Customizing Pubsub
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const GossipSub = require('libp2p-gossipsub')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO],
pubsub: GossipSub
},
config: {
pubsub: { // The pubsub options (and defaults) can be found in the pubsub router documentation
enabled: true,
emitSelf: true, // whether the node should emit to self on publish
signMessages: true, // if messages should be signed
strictSigning: true // if message signing should be required
}
}
})
```
#### Customizing DHT
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const DHT = require('libp2p-kad-dht')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO],
dht: DHT
},
config: {
dht: { // The DHT options (and defaults) can be found in its documentation
kBucketSize: 20,
enabled: true,
randomWalk: {
enabled: true, // Allows to disable discovery (enabled by default)
interval: 300e3,
timeout: 10e3
}
}
}
})
```
#### Setup with Content and Peer Routing
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const DelegatedPeerRouter = require('libp2p-delegated-peer-routing')
const DelegatedContentRouter = require('libp2p-delegated-content-routing')
const PeerId = require('peer-id')
// create a peerId
const peerId = await PeerId.create()
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO],
contentRouting: [
new DelegatedContentRouter(peerId)
],
peerRouting: [
new DelegatedPeerRouter()
],
},
peerId
})
```
#### Setup with Relay
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
config: {
relay: { // Circuit Relay options (this config is part of libp2p core configurations)
enabled: true, // Allows you to dial and accept relayed connections. Does not make you a relay.
hop: {
enabled: true, // Allows you to be a relay for other peers
active: true // You will attempt to dial destination peers if you are not connected to them
}
}
}
})
```
#### Setup with Keychain
Libp2p allows you to setup a secure keychain to manage your keys. The keychain configuration object should have the following properties:
| Name | Type | Description |
|------|------|-------------|
| pass | `string` | Passphrase to use in the keychain (minimum of 20 characters). |
| datastore | `object` | must implement [ipfs/interface-datastore](https://github.com/ipfs/interface-datastore) |
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const LevelStore = require('datastore-level')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
keychain: {
pass: 'notsafepassword123456789',
datastore: new LevelStore('path/to/store')
}
})
await libp2p.loadKeychain()
```
#### Configuring Dialing
Dialing in libp2p can be configured to limit the rate of dialing, and how long dials are allowed to take. The dialer configuration object should have the following properties:
| Name | Type | Description |
|------|------|-------------|
| maxParallelDials | `number` | How many multiaddrs we can dial in parallel. |
| maxDialsPerPeer | `number` | How many multiaddrs we can dial per peer, in parallel. |
| dialTimeout | `number` | Second dial timeout per peer in ms. |
The below configuration example shows how the dialer should be configured, with the current defaults:
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
dialer: {
maxParallelDials: 100,
maxDialsPerPeer: 4,
dialTimeout: 30e3
}
```
#### Configuring Connection Manager
The Connection Manager prunes Connections in libp2p whenever certain limits are exceeded. If Metrics are enabled, you can also configure the Connection Manager to monitor the bandwidth of libp2p and prune connections as needed. You can read more about what Connection Manager does at [./CONNECTION_MANAGER.md](./CONNECTION_MANAGER.md). The configuration values below show the defaults for Connection Manager. See [./CONNECTION_MANAGER.md](./CONNECTION_MANAGER.md#options) for a full description of the parameters.
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
connectionManager: {
maxConnections: Infinity,
minConnections: 0,
pollInterval: 2000,
defaultPeerValue: 1,
// The below values will only be taken into account when Metrics are enabled
maxData: Infinity,
maxSentData: Infinity,
maxReceivedData: Infinity,
maxEventLoopDelay: Infinity,
movingAverageInterval: 60000
}
})
```
#### Configuring Transport Manager
The Transport Manager is responsible for managing the libp2p transports life cycle. This includes starting listeners for the provided listen addresses, closing these listeners and dialing using the provided transports. By default, if a libp2p node has a list of multiaddrs for listenning on and there are no valid transports for those multiaddrs, libp2p will throw an error on startup and shutdown. However, for some applications it is perfectly acceptable for libp2p nodes to start in dial only mode if all the listen multiaddrs failed. This error tolerance can be enabled as follows:
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const { FaultTolerance } = require('libp2p/src/transport-manager')}
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
transportManager: {
faultTolerance: FaultTolerance.NO_FATAL
}
})
```
#### Configuring Metrics
Metrics are disabled in libp2p by default. You can enable and configure them as follows:
| Name | Type | Description |
|------|------|-------------|
| enabled | `boolean` | Enabled metrics collection. |
| computeThrottleMaxQueueSize | `number` | How many messages a stat will queue before processing. |
| computeThrottleTimeout | `number` | Time in milliseconds a stat will wait, after the last item was added, before processing. |
| movingAverageIntervals | `Array<number>` | The moving averages that will be computed. |
| maxOldPeersRetention | `number` | How many disconnected peers we will retain stats for. |
The below configuration example shows how the metrics should be configured. Aside from enabled being `false` by default, the following default configuration options are listed below:
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
metrics: {
enabled: true,
computeThrottleMaxQueueSize: 1000,
computeThrottleTimeout: 2000,
movingAverageIntervals: [
60 * 1000, // 1 minute
5 * 60 * 1000, // 5 minutes
15 * 60 * 1000 // 15 minutes
],
maxOldPeersRetention: 50
}
})
```
#### Configuring PeerStore
PeerStore persistence is disabled in libp2p by default. You can enable and configure it as follows. Aside from enabled being `false` by default, it will need an implementation of a [datastore](https://github.com/ipfs/interface-datastore). Take into consideration that using the memory datastore will be ineffective for persistence.
The threshold number represents the maximum number of "dirty peers" allowed in the PeerStore, i.e. peers that are not updated in the datastore. In this context, browser nodes should use a threshold of 1, since they might not "stop" properly in several scenarios and the PeerStore might end up with unflushed records when the window is closed.
| Name | Type | Description |
|------|------|-------------|
| persistence | `boolean` | Is persistence enabled. |
| threshold | `number` | Number of dirty peers allowed. |
The below configuration example shows how the PeerStore should be configured. Aside from persistence being `false` by default, the following default configuration options are listed below:
```js
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const LevelStore = require('datastore-level')
const node = await Libp2p.create({
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
datastore: new LevelStore('path/to/store'),
peerStore: {
persistence: true,
threshold: 5
}
})
```
#### Customizing Transports
Some Transports can be passed additional options when they are created. For example, `libp2p-webrtc-star` accepts an optional, custom `wrtc` implementation. In addition to libp2p passing itself and an `Upgrader` to handle connection upgrading, libp2p will also pass the options, if they are provided, from `config.transport`.
```js
const Libp2p = require('libp2p')
const WebRTCStar = require('libp2p-webrtc-star')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const wrtc = require('wrtc')
const transportKey = WebRTCStar.prototype[Symbol.toStringTag]
const node = await Libp2p.create({
modules: {
transport: [WebRTCStar],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
config: {
transport: {
[transportKey]: {
wrtc // You can use `wrtc` when running in Node.js
}
}
}
})
```
## Configuration examples
As libp2p is designed to be a modular networking library, its usage will vary based on individual project needs. We've included links to some existing project configurations for your reference, in case you wish to replicate their configuration:
- [libp2p-ipfs-nodejs](https://github.com/ipfs/js-ipfs/blob/master/packages/ipfs/src/core/runtime/libp2p-nodejs.js) - libp2p configuration used by js-ipfs when running in Node.js
- [libp2p-ipfs-browser](https://github.com/ipfs/js-ipfs/blob/master/packages/ipfs/src/core/runtime/libp2p-browser.js) - libp2p configuration used by js-ipfs when running in a Browser (that supports WebRTC)
If you have developed a project using `js-libp2p`, please consider submitting your configuration to this list so that it can be found easily by other users.
The [examples](../examples) are also a good source of help for finding a configuration that suits your needs.

20
doc/CONNECTION_MANAGER.md Normal file
View File

@ -0,0 +1,20 @@
# Connection Manager
The Connection Manager works with the Registrar to keep connections across libp2p within acceptable ranges, which can be configured. By default Connection Manager will monitor:
- The total number of open connections
- The latency/delay of the event loop
If Metrics are enabled for libp2p, see [./CONFIGURATION.md#configuring-metrics](./CONFIGURATION.md#configuring-metrics) on how to configure metrics, the Connection Manager can be used to prune connections when certain limits are exceeded.
The following is a list of available options for setting limits for the Connection Manager to enforce.
## Options
- `maxConnections`: the maximum number of connections libp2p is willing to have before it starts disconnecting. Defaults to `Infinity`
- `minConnections`: the minimum number of connections below which libp2p not activate preemptive disconnections. Defaults to `0`.
- `maxData`: sets the maximum data — in bytes per second - (sent and received) this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
- `maxSentData`: sets the maximum sent data — in bytes per second - this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
- `maxReceivedData`: sets the maximum received data — in bytes per second - this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
- `maxEventLoopDelay`: sets the maximum event loop delay (measured in milliseconds) this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
- `pollInterval`: sets the poll interval (in milliseconds) for assessing the current state and determining if this peer needs to force a disconnect. Defaults to `2000` (2 seconds).
- `movingAverageInterval`: the interval used to calculate moving averages (in milliseconds). Defaults to `60000` (1 minute). This must be an available interval configured in `Metrics`
- `defaultPeerValue`: number between 0 and 1. Defaults to 1.

32
doc/DIALER.md Normal file
View File

@ -0,0 +1,32 @@
# js-libp2p Dialer
**Synopsis**
* Parallel dials to the same peer will yield the same connection/error when the first dial settles.
* All Dial Requests in js-libp2p must request a token(s) from the Dialer.
* The number of tokens requested should be between 1 and the MAX_PER_PEER_DIALS max set in the Dialer.
* If the number of available tokens is less than requested, the Dialer may return less than requested.
* The number of tokens a DialRequest obtains reflects the maximum number of parallel Multiaddr Dials it can make.
* If no tokens are available a DialRequest should immediately end and throw.
* As tokens are limited, DialRequests should be given a prioritized list of Multiaddrs to minimize the potential request time.
* Once a Multiaddr Dial has succeeded, all pending dials in that Dial Request should be aborted.
* If DIAL_TIMEOUT time has elapsed before any one Multiaddr Dial succeeds, all remaining dials in the DialRequest should be aborted.
* When a Multiaddr Dial is settled, if there are no more addresses to dial, its token should be released back to the dialer.
* Once the DialRequest is settled, any remaining tokens should be released to the dialer.
## Multiaddr Confidence
An effective dialing system should involve the inclusion of a Confidence system for Multiaddrs. This enables ranking of Multiaddrs so that a prioritized list can be passed to DialRequests to maximize usage of Dialer Tokens, and minimize connection times.
**Not Yet Implemented**: This system will be designed and implemented in a future update.
## Notes
* A DialRequest gets a set of tokens from the Dialer, up to the MAX_PER_PEER_DIALS max.
* A DialRequest SHOULD fail if no dial tokens are available. The DialRequest MAY proceed without tokens, but this should be reserved for High Priority actions and should be rare.
* A DialRequest MUST NOT request more tokens than it has addresses to dial. Example: If the MAX_PER_PEER_DIALS is 4 and a DialRequest has 1 address, it should only request 1 token.
* A DialRequest SHOULD execute parallel dials for each of its addresses up the total number of tokens it has.
* On a successful dial, the DialRequest MUST abort any other in progress dials, return the successful connection and release all tokens.
* A new DialRequest SHOULD be given a descending list of prioritized Multiaddrs, based on their confidence. Having higher confidence Multiaddrs first can help minimize the time a DialRequest is active.
* A failed dial to a Multiaddr SHOULD add that Multiaddr to a temporary denyList.
* A failed dial to a Multiaddr SHOULD lower the confidence of that Multiaddr.
* A successful dial to a Multiaddr SHOULD increase the confidence of that Multiaddr.

256
doc/GETTING_STARTED.md Normal file
View File

@ -0,0 +1,256 @@
# Getting Started
Welcome to libp2p! This guide will walk you through setting up a fully functional libp2p node 🚀
- [Getting Started](#getting-started)
- [Install](#install)
- [Configuring libp2p](#configuring-libp2p)
- [Basic setup](#basic-setup)
- [Transports](#transports)
- [Connection Encryption](#connection-encryption)
- [Multiplexing](#multiplexing)
- [Running Libp2p](#running-libp2p)
- [Custom setup](#custom-setup)
- [Peer Discovery](#peer-discovery)
- [Pubsub](#pubsub)
- [What is next](#what-is-next)
## Install
The first step is to install libp2p in your project:
```sh
npm install libp2p
```
## Configuring libp2p
If you're new to libp2p, we recommend configuring your node in stages, as this can make troubleshooting configuration issues much easier. In this guide, we'll do just that. If you're more experienced with libp2p, you may wish to jump to the [Configuration readme](./CONFIGURATION.md).
### Basic setup
Now that we have libp2p installed, let's configure the minimum needed to get your node running. The only modules libp2p requires are a [**Transport**][transport] and [**Crypto**][crypto] module. However, we recommend that a basic setup should also have a [**Stream Multiplexer**](streamMuxer) configured, which we will explain shortly. Let's start by setting up a Transport.
#### Transports
Libp2p uses Transports to establish connections between peers over the network. Transports are the components responsible for performing the actual exchange of data between libp2p nodes. You can configure any number of Transports, but you only need 1 to start with. Supporting more Transports will improve the ability of your node to speak to a larger number of nodes on the network, as matching Transports are required for two nodes to communicate with one another.
You should select Transports according to the runtime of your application; Node.js or the browser. You can see a list of some of the available Transports in the [configuration readme](./CONFIGURATION.md#transport). For this guide let's install `libp2p-websockets`, as it can be used in both Node.js and the browser.
Start by installing `libp2p-websockets`:
```sh
npm install libp2p-websockets
```
Now that we have the module installed, let's configure libp2p to use the Transport. We'll use the [`Libp2p.create`](./API.md#create) method, which takes a single configuration object as its only parameter. We can add the Transport by passing it into the `modules.transport` array:
```js
const Libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const node = await Libp2p.create({
modules: {
transport: [WebSockets]
}
})
```
There are multiple libp2p transports available, you should evaluate the needs of your application and select the Transport(s) that best suit your requirements. You can add as many transports as you like to `modules.transport` in order to establish connections with as many peers as possible.
<details><summary>Read More</summary>
If you want to know more about libp2p transports, you should read the following content:
- https://docs.libp2p.io/concepts/transport
- https://github.com/libp2p/specs/tree/master/connections
</details>
#### Connection Encryption
Encryption is an important part of communicating on the libp2p network. Every connection must be encrypted to help ensure security for everyone. As such, Connection Encryption (Crypto) is a required component of libp2p.
There are a growing number of Crypto modules being developed for libp2p. As those are released they will be tracked in the [Connection Encryption section of the configuration readme](./CONFIGURATION.md#connection-encryption). For now, we are going to configure our node to use the `libp2p-noise` module.
```sh
npm install libp2p-noise
```
With `libp2p-noise` installed, we can add it to our existing configuration by importing it and adding it to the `modules.connEncryption` array:
```js
const Libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const { NOISE } = require('libp2p-noise')
const node = await Libp2p.create({
modules: {
transport: [WebSockets],
connEncryption: [NOISE]
}
})
```
<details><summary>Read More</summary>
If you want to know more about libp2p connection encryption, you should read the following content:
- https://docs.libp2p.io/concepts/secure-comms
- https://github.com/libp2p/specs/tree/master/connections
</details>
#### Multiplexing
While multiplexers are not strictly required, they are highly recommended as they improve the effectiveness and efficiency of connections for the various protocols libp2p runs. Adding a multiplexer to your configuration will allow libp2p to run several of its internal protocols, like Identify, as well as allow your application to easily run any number of protocols over a single connection.
Looking at the [available stream multiplexing](./CONFIGURATION.md#stream-multiplexing) modules, js-libp2p currently only supports `libp2p-mplex`, so we will use that here. Bear in mind that future libp2p Transports might have `multiplexing` capabilities already built-in (such as `QUIC`).
You can install `libp2p-mplex` and add it to your libp2p node as follows in the next example.
```sh
npm install libp2p-mplex
```
```js
const Libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const SECIO = require('libp2p-secio')
const MPLEX = require('libp2p-mplex')
const node = await Libp2p.create({
modules: {
transport: [WebSockets],
connEncryption: [SECIO],
streamMuxer: [MPLEX]
}
})
```
<details><summary>Read More</summary>
If you want to know more about libp2p stream multiplexing, you should read the following content:
- https://docs.libp2p.io/concepts/stream-multiplexing
- https://github.com/libp2p/specs/tree/master/connections
- https://github.com/libp2p/specs/tree/master/mplex
</details>
#### Running Libp2p
Now that you have configured a [**Transport**][transport], [**Crypto**][crypto] and [**Stream Multiplexer**](streamMuxer) module, you can start your libp2p node. We can start and stop libp2p using the [`libp2p.start()`](./API.md#start) and [`libp2p.stop()`](./API.md#stop) methods.
```js
const Libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const SECIO = require('libp2p-secio')
const MPLEX = require('libp2p-mplex')
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/127.0.0.1/tcp/8000/ws']
},
modules: {
transport: [WebSockets],
connEncryption: [SECIO],
streamMuxer: [MPLEX]
}
})
// start libp2p
await node.start()
console.log('libp2p has started')
const listenAddrs = node.transportManager.getAddrs()
console.log('libp2p is listening on the following addresses: ', listenAddrs)
const advertiseAddrs = node.multiaddrs
console.log('libp2p is advertising the following addresses: ', advertiseAddrs)
// stop libp2p
await node.stop()
console.log('libp2p has stopped')
```
### Custom setup
Once your libp2p node is running, it is time to get it connected to the public network. We can do this via peer discovery.
#### Peer Discovery
Peer discovery is an important part of creating a well connected libp2p node. A static list of peers will often be used to join the network, but it's useful to couple other discovery mechanisms to ensure you're able to discover other peers that are important to your application.
For each discovered peer libp2p will emit a `peer:discovery` event which includes metadata about that peer. You can read the [Events](./API.md#events) in the API doc to learn more.
Looking at the [available peer discovery](./CONFIGURATION.md#peer-discovery) protocols, there are several options to be considered:
- If you already know the addresses of some other network peers, you should consider using `libp2p-bootstrap` as this is the easiest way of getting your peer into the network.
- If it is likely that you will have other peers on your local network, `libp2p-mdns` is a must if you're node is not running in the browser. It allows peers to discover each other when on the same local network.
- If your application is browser based you can use the `libp2p-webrtc-star` Transport, which includes a rendezvous based peer sharing service.
- A random walk approach can be used via `libp2p-kad-dht`, to crawl the network and find new peers along the way.
For this guide we will configure `libp2p-bootstrap` as this is useful for joining the public network.
Let's install `libp2p-bootstrap`.
```sh
npm install libp2p-bootstrap
```
We can provide specific configurations for each protocol within a `config.peerDiscovery` property in the options as shown below.
```js
const Libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const SECIO = require('libp2p-secio')
const MPLEX = require('libp2p-mplex')
const Bootstrap = require('libp2p-bootstrap')
// Known peers addresses
const bootstrapMultiaddrs = [
'/dns4/ams-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/dns4/lon-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3'
]
const node = await Libp2p.create({
modules: {
transport: [WebSockets],
connEncryption: [SECIO],
streamMuxer: [MPLEX],
peerDiscovery: [Bootstrap]
},
config: {
peerDiscovery: {
autoDial: true, // Auto connect to discovered peers (limited by ConnectionManager minConnections)
// The `tag` property will be searched when creating the instance of your Peer Discovery service.
// The associated object, will be passed to the service when it is instantiated.
[Bootstrap.tag]: {
enabled: true,
list: bootstrapMultiaddrs // provide array of multiaddrs
}
}
}
})
node.on('peer:discovery', (peer) => {
console.log('Discovered %s', peer.id.toB58String()) // Log discovered peer
})
node.on('peer:connect', (peer) => {
console.log('Connected to %s', peer.id.toB58String()) // Log connected peer
})
// start libp2p
await node.start()
```
<details><summary>Read More</summary>
If you want to know more about libp2p peer discovery, you should read the following content:
- https://github.com/libp2p/specs/blob/master/discovery/mdns.md
</details>
## What is next
There are a lot of other concepts within `libp2p`, that are not covered in this guide. For additional configuration options we recommend checking out the [Configuration Readme](./CONFIGURATION.md) and the [examples folder](../examples). If you have any problems getting started, or if anything isn't clear, please let us know by submitting an issue!
[transport]: https://github.com/libp2p/js-interfaces/tree/master/src/transport
[crypto]: https://github.com/libp2p/js-interfaces/tree/master/src/crypto
[streamMuxer]: https://github.com/libp2p/js-interfaces/tree/master/src/stream-muxer

28
doc/METRICS.md Normal file
View File

@ -0,0 +1,28 @@
# Bandwidth Metrics
- Metrics gathering is optional, as there is a performance hit to using it.
- Metrics do NOT currently contain OS level stats, only libp2p application level Metrics. For example, TCP messages (ACK, FIN, etc) are not accounted for.
- See the [API](./API.md) for Metrics usage. Metrics in libp2p do not emit events, as such applications wishing to read Metrics will need to do so actively. This ensures that the system is not unnecessarily firing update notifications.
## Tracking
- When a transport hands off a connection for upgrading, Metrics are hooked up if enabled.
- When a stream is created, Metrics will be tracked on that stream and associated to that streams protocol.
- Tracked Metrics are associated to a specific peer, and count towards global bandwidth Metrics.
### Metrics Processing
- The main Metrics object consists of individual `Stats` objects
- The following categories are tracked:
- Global stats; every byte in and out
- Peer stats; every byte in and out, per peer
- Protocol stats; every byte in and out, per protocol
- When a message goes through Metrics:
- It is added to the global stat
- It is added to the stats for the remote peer
- It is added to the protocol stats if there is one
- When data is pushed onto a `Stat` it is added to a queue
- The queue is processed at the earliest of either (configurable):
- every 2 seconds after the last item was added to the queue
- or once 1000 items have been queued
- When the queue is processed:
- The data length is added to either the `in` or `out` stat
- The moving averages is calculated since the last queue processing (based on most recently processed item timestamp)

164
doc/STREAMING_ITERABLES.md Normal file
View File

@ -0,0 +1,164 @@
# Iterable Streams
> This document is a guide on how to use Iterable Streams in Libp2p. As a part of the [refactor away from callbacks](https://github.com/ipfs/js-ipfs/issues/1670), we have also moved to using Iterable Streams instead of [pull-streams](https://pull-stream.github.io/). If there are missing usage guides you feel should be added, please submit a PR!
## Table of Contents
- [Iterable Streams](#iterable-streams)
- [Table of Contents](#table-of-contents)
- [Usage Guide](#usage-guide)
- [Transforming Bidirectional Data](#transforming-bidirectional-data)
- [Iterable Stream Types](#iterable-stream-types)
- [Source](#source)
- [Sink](#sink)
- [Transform](#transform)
- [Duplex](#duplex)
- [Iterable Modules](#iterable-modules)
## Usage Guide
### Transforming Bidirectional Data
Sometimes you may need to wrap an existing duplex stream in order to perform incoming and outgoing [transforms](#transform) on data. This type of wrapping is commonly used in stream encryption/decryption. Using [it-pair][it-pair] and [it-pipe][it-pipe], we can do this rather easily, given an existing [duplex iterable](#duplex).
```js
const duplexPair = require('it-pair/duplex')
const pipe = require('it-pipe')
// Wrapper is what we will write and read from
// This gives us two duplex iterables that are internally connected
const [internal, external] = duplexPair()
// Now we can pipe our wrapper to the existing duplex iterable
pipe(
external, // The external half of the pair interacts with the existing duplex
outgoingTransform, // A transform iterable to send data through (ie: encrypting)
existingDuplex, // The original duplex iterable we are wrapping
incomingTransform, // A transform iterable to read data through (ie: decrypting)
external
)
// We can now read and write from the other half of our pair
pipe(
['some data'],
internal, // The internal half of the pair is what we will interact with to read/write data
async (source) => {
for await (const chunk of source) {
console.log('Data: %s', chunk.toString())
// > Data: some data
}
}
)
```
## Iterable Stream Types
These types are pulled from [@alanshaw's gist](https://gist.github.com/alanshaw/591dc7dd54e4f99338a347ef568d6ee9) on streaming iterables.
### Source
A "source" is something that can be consumed. It is an iterable object.
```js
const ints = {
[Symbol.asyncIterator] () {
let i = 0
return {
async next () {
return { done: false, value: i++ }
}
}
}
}
// or, more succinctly using a generator and for/await:
const ints = (async function * () {
let i = 0
while (true) yield i++
})()
```
### Sink
A "sink" is something that consumes (or drains) a source. It is a function that takes a source and iterates over it. It optionally returns a value.
```js
const logger = async source => {
const it = source[Symbol.asyncIterator]()
while (true) {
const { done, value } = await it.next()
if (done) break
console.log(value) // prints 0, 1, 2, 3...
}
}
// or, more succinctly using a generator and for/await:
const logger = async source => {
for await (const chunk of source) {
console.log(chunk) // prints 0, 1, 2, 3...
}
}
```
### Transform
A "transform" is both a sink _and_ a source where the values it consumes and the values that can be consumed from it are connected in some way. It is a function that takes a source and returns a source.
```js
const doubler = source => {
return {
[Symbol.asyncIterator] () {
const it = source[Symbol.asyncIterator]()
return {
async next () {
const { done, value } = await it.next()
if (done) return { done }
return { done, value: value * 2 }
}
return () {
return it.return && it.return()
}
}
}
}
}
// or, more succinctly using a generator and for/await:
const doubler = source => (async function * () {
for await (const chunk of source) {
yield chunk * 2
}
})()
```
### Duplex
A "duplex" is similar to a transform but the values it consumes are not necessarily connected to the values that can be consumed from it. It is an object with two properties, `sink` and `source`.
```js
const duplex = {
sink: async source => {/* ... */},
source: { [Symbol.asyncIterator] () {/* ... */} }
}
```
## Iterable Modules
- [it-handshake][it-handshake] Handshakes for binary protocols with iterable streams.
- [it-length-prefixed][it-length-prefixed] Streaming length prefixed buffers with async iterables.
- [it-pair][it-pair] Paired streams that are internally connected.
- [it-pipe][it-pipe] Create a pipeline of iterables. Works with duplex streams.
- [it-pushable][it-pushable] An iterable that you can push values into.
- [it-reader][it-reader] Read an exact number of bytes from a binary, async iterable.
- [streaming-iterables][streaming-iterables] A Swiss army knife for async iterables.
[it-handshake]: https://github.com/jacobheun/it-handshake
[it-length-prefixed]: https://github.com/alanshaw/it-length-prefixed
[it-pair]: https://github.com/alanshaw/it-pair
[it-pipe]: https://github.com/alanshaw/it-pipe
[it-pushable]: https://github.com/alanshaw/it-pushable
[it-reader]: https://github.com/alanshaw/it-reader
[streaming-iterables]: https://github.com/reconbot/streaming-iterables

View File

@ -0,0 +1,178 @@
# Migrating to the libp2p@0.27 API
A migration guide for refactoring your application code from libp2p v0.26.x to v0.27.0.
## Table of Contents
- [Migrating from callbacks](#migrating-from-callbacks)
- [Pull Streams to Streaming Iterables](#pull-streams-to-streaming-iterables)
- [Sample API Migrations](#sample-api-migrations)
- [Registering Protocol Handlers](#registering-protocol-handlers)
- [Dialing and Sending Data](#dialing-and-sending-data)
- [Checking if a peer is connected](#checking-if-a-peer-is-connected)
- [Pinging another peer](#pinging-another-peer)
- [Pubsub](#pubsub)
- [Getting subscribers](#getting-subscribers)
- [Getting subscribed topics](#getting-subscribed-topics)
## Migrating from callbacks
Callbacks are no longer supported in the libp2p API, as the API has now fully moved to async / await. You can see a full list of the available methods in the [API readme][api]
**Before**
```js
libp2p.start((err) => {
if (err) throw err
console.log('libp2p started')
})
```
**After**
```js
await libp2p.start()
console.log('libp2p started')
```
## Pull Streams to Streaming Iterables
The libp2p API no longer supports Pull Streams and has migrated to [Streaming Iterables][streaming_iterable]. If you would like to continue using Pull Streams in your application code, or need additional time to migrate your code base, you can leverage the conversion modules [async-iterator-to-pull-stream](https://github.com/alanshaw/async-iterator-to-pull-stream) and [pull-stream-to-async-iterator](https://github.com/alanshaw/pull-stream-to-async-iterator).
For a growing list of async iterator modules, you should follow the [it-awesome repo][it_awesome].
## Sample API Migrations
### Registering Protocol Handlers
Protocol registration is very similar to how it previously was, however, the handler now takes a single parameter containing the incoming stream and its protocol. Additionally, you can now pass an array of protocols to `.handle`, but a single string is still supported.
**Before**
```js
const pull = require('pull-stream')
libp2p.handle('/echo/1.0.0', (protocol, conn) => pull(conn, conn))
```
**After**
```js
const pipe = require('it-pipe')
libp2p.handle(['/echo/1.0.0'], ({ protocol, stream }) => pipe(stream, stream))
```
### Dialing and Sending Data
`dialProtocol` no longer takes a callback, and will now return a [Streaming Iterable][streaming_iterable] and the protocol that was successfully negotiated. The new stream can be used with async iterator modules, see [it-awesome][it_awesome], instead of pull streams.
**Before**
```js
const pull = require('pull-stream')
libp2p.dialProtocol(peerInfo, '/echo/1.0.0', (err, conn) => {
if (err) { throw err }
pull(
pull.values(['hey']),
conn,
pull.drain((data) => {
console.log('received echo:', data.toString())
}, (err) => {
if (err) { throw err }
})
)
})
```
**After**
```js
const pipe = require('it-pipe')
const { protocol, stream } = await libp2p.dialProtocol(peerInfo, '/echo/1.0.0')
await pipe(
['hey'],
stream,
async function (source) {
for await (const data of source) {
console.log('received echo:', data.toString())
}
}
)
```
### Checking if a peer is connected
`peerInfo.isConnected` has been deprecated. libp2p now tracks all connections centrally and will no longer update the state of `peerInfo.isConnected`. Consumers should switch to using `libp2p.registrar.getConnection(peerInfo)`, which will return an open connection to that peer if one exists.
**Before**
```js
if (peerInfo.isConnected()) {
// ...do something if connected
}
```
**After**
```js
const connection = libp2p.registrar.getConnection(peerInfo)
if (connection) {
// ...do something if connected
}
```
### Pinging another peer
`libp2p.ping` will no longer callback with a `Ping` event emitter. The internal logic has been simplified to give more flexibility to the API. `libp2p.ping` will now execute a single ping and return the latency.
**Before**
```js
libp2p.ping(peerInfo, (err, ping) => {
if (err) throw err
ping.once('ping', (latency) => {
console.log('Latency is %s ms', latency)
ping.stop()
})
ping.start()
})
```
**After**
```js
const latency = await libp2p.ping(peerInfo)
console.log('Latency is %s ms', latency)
```
### Pubsub
#### Getting subscribers
`libp2p.pubsub.peers()` is now `libp2p.pubsub.getSubscribers()` and is no longer an asynchronous action.
**Before**
```js
libp2p.pubsub.peers(topic, (err, subscribers) => {
if (err) throw err
console.log('Subscribers:', subscribers)
})
```
**After**
```js
const subscribers = libp2p.pubsub.getSubscribers(topic)
console.log('Subscribers:', subscribers)
```
#### Getting subscribed topics
`libp2p.pubsub.ls()` is now `libp2p.pubsub.getTopics()` and is no longer an asynchronous action.
**Before**
```js
libp2p.pubsub.ls((err, topics) => {
if (err) throw err
console.log('Topics:', topics)
})
```
**After**
```js
const topics = libp2p.pubsub.getTopics()
console.log('Topics:', topics)
```
[api]: ../API.md
[it_awesome]: https://github.com/alanshaw/it-awesome
[streaming_iterable]: ../STREAMING_ITERABLES.md

View File

@ -0,0 +1,343 @@
# Migrating to the libp2p@0.28 API
A migration guide for refactoring your application code from libp2p v0.27.x to v0.28.0.
## Table of Contents
- [PeerStore API](#peerstore-api)
- [Migrating from Peer Info](#migrating-from-peer-info)
- [Create](#create)
- [API Implications](#api-implications)
- [Connection Manager and Registrar](#connection-manager-and-registrar)
- [Events](#events)
- [Module Updates](#module-updates)
## PeerStore API
In `libp2p@0.27` we integrated the PeerStore (former [peer-book](https://github.com/libp2p/js-peer-book)) into the codebase. By that time, it was not documented in the [API DOC](../API.md) since it kept the same API as the `peer-book` and it was expected to be completelly rewritten in `libp2p@0.28`.
Moving towards a separation of concerns regarding known peers' data, as well as enabling PeerStore persistence, the PeerStore is now divided into four main components: `AddressBook`, `ProtoBook`, `KeyBook` and `MetadataBook`. This resulted in API changes in the PeerStore, since each type of peer data should now be added in an atomic fashion.
### Adding a Peer
**Before**
```js
const peerId = ...
const peerInfo = new PeerInfo(peerId)
peerInfo.protocols.add('/ping/1.0.0')
peerInfo.protocols.add('/ping/2.0.0')
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/0')
libp2p.peerStore.put(peerInfo)
```
**After**
```js
const peerId = ...
const protocols = ['/ping/1.0.0', 'ping/2.0.0']
const multiaddrs = ['/ip4/127.0.0.1/tcp/0']
libp2p.peerStore.protoBook.add(peerId, protocols)
libp2p.peerStore.addressBook.add(peerId, multiaddrs)
```
### Getting a Peer
**Before**
```js
const peerId = ...
const peerInfo = libp2p.peerStore.get(peerId)
// { id: PeerId, multiaddrs: MultiaddrSet, protocols: Set<string>}
```
**After**
```js
const peerId = ...
const peer = libp2p.peerStore.get(peerId)
// { id: PeerId, addresses: Array<{ multiaddr: Multiaddr }>, protocols: Array<string> }
```
### Checking for a Peer
**Before**
```js
const peerId = ...
const hasData = libp2p.peerStore.has(peerId)
```
**After**
```js
const peerId = ...
const hasData = Boolean(libp2p.peerStore.get(peerId))
```
### Removing a Peer
**Before**
```js
libp2p.peerStore.remove(peerId)
```
**After**
```js
// Atomic
libp2p.peerStore.protoBook.delete(peerId)
libp2p.peerStore.addressBook.delete(peerId)
// Remove the peer and ALL of its associated data
libp2p.peerStore.delete(peerId)
```
### Get all known Peers
**Before**
```js
const peers = libp2p.peerStore.peers
// Map<string, PeerInfo>
```
**After**
```js
const peers = libp2p.peerStore.peers
// Similar to libp2p.peerStore.get()
// Map<string, { id: PeerId, addresses: Array<{ multiaddr: Multiaddr }>, protocols: Array<string> }
```
## Migrating from Peer Info
[`PeerInfo`][peer-info] is a libp2p peer abstraction layer that combines a [`PeerId`][peer-id] with known data of the peer, namely its multiaddrs and protocols. It has been used for a long time by `js-libp2p` and its modules to carry this data around the libp2p stack, as well as by the libp2p API, both for providing this data to the users or to receive it from them.
Since this PeerInfo instances were navigating through the entire codebases, some data inconsistencies could be observed in libp2p. Different libp2p subsystems were running with different visions of the known peers data. For instance, a libp2p subsystem receives a copy of this instance with the peer multiaddrs and protocols, but if new data of the peer is obtained from other subsystem, it would not be updated on the former. Moreover, considering that several subsystems were modifying the peer data, libp2p had no way to determine the accurate data.
Considering the complete revamp of the libp2p PeerStore towards its second version, the PeerStore now acts as the single source of truth, we do not need to carry [`PeerInfo`][peer-info] instances around. This also solves all the problems stated above, since subsystems will report new observations to the PeerStore.
### Create
While it was possible to create a libp2p node without providing a [`PeerInfo`][peer-info], there were 2 use cases where a [`PeerInfo`][peer-info] was provided when creating a libp2p node.
#### Using an existing PeerId
`libp2p.create` receives a `peerId` property instead of a `peerInfo` property.
**Before**
```js
const peerId = ...
const peerInfo = new PeerInfo(peerId)
const libp2p = await Libp2p.create({
peerInfo
// ...
})
```
**After**
```js
const peerId = ...
const libp2p = await Libp2p.create({
peerId
// ...
})
```
#### Providing listen addresses
**Before**
```js
const peerId = ...
const peerInfo = new PeerInfo(peerId)
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/0')
const libp2p = await Libp2p.create({
peerInfo
// ...
})
await libp2p.start()
```
**After**
```js
const peerId = ...
const libp2p = await Libp2p.create({
peerId,
addresses: {
listen: ['/ip4/127.0.0.1/tcp/0']
}
// ...
})
await libp2p.start()
```
There is also a bonus regarding the peer addresses. `libp2p@0.28` comes with an AddressManager that also allows the configuration of `announce` and `noAnnounce` addresses.
This was possible to achieve before, but in a hacky way by removing or adding addresses to the `peerInfo`, after the node starts.
**Before**
```js
const peerId = ...
const peerInfo = new PeerInfo(peerId)
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/8000')
const libp2p = await Libp2p.create({
peerInfo
// ...
})
await libp2p.start()
peerInfo.multiaddrs.add('/dns4/peer.io') // Announce
peerInfo.multiaddrs.delete('/ip4/127.0.0.1/tcp/8000') // Not announce
```
**After**
```js
const peerId = ...
const libp2p = await Libp2p.create({
peerId,
addresses: {
listen: ['/ip4/127.0.0.1/tcp/8000'],
announce: ['/dns4/peer.io'],
noAnnounce: ['/ip4/127.0.0.1/tcp/8000']
}
// ...
})
await libp2p.start()
```
### API Implications
#### Peer Dialing, Hangup and Ping
`libp2p.dial`, `libp2p.dialProtocol`, `libp2p.hangup` and `libp2p.ping` supported as the target parameter a [`PeerInfo`](peer-info), a [`PeerId`](peer-id), a [`Multiaddr`][multiaddr] and a string representation of the multiaddr. Considering that [`PeerInfo`](peer-info) is being removed from libp2p, all these methods will now support the other 3 possibilities.
There is one relevant aspect to consider with this change. When using a [`PeerId`](peer-id), the PeerStore **MUST** have known addresses for that peer in its AddressBook, so that it can perform the request. This was also true in the past, but it is important pointing it out because it might not be enough to switch from using [`PeerInfo`](peer-info) to [`PeerId`](peer-id). When using a [`PeerInfo`](peer-info), the PeerStore was not required to have the multiaddrs when they existed on the PeerInfo instance.
**Before**
```js
const peerInfo = ... // PeerInfo containing its multiaddrs
const connection = await libp2p.dial(peerInfo)
```
**After**
```js
const peerId = ...
// Known multiaddrs should be added to the PeerStore
libp2p.peerStore.addressBook.add(peerId, multiaddrs)
const connection = await libp2p.dial(peerId)
```
#### Content Routing and Peer Routing
Both [content-routing](https://github.com/libp2p/js-libp2p-interfaces/tree/master/src/content-routing) and [peer-routing](https://github.com/libp2p/js-libp2p-interfaces/tree/master/src/peer-routing) interfaces were modified to not return a ['PeerInfo'][peer-info] instance.
**Before**
```js
for await (const peerInfo of libp2p.contentRouting.findProviders(cid)) {
// peerInfo is a PeerInfo instance
}
```
**After**
```js
for await (const peer of libp2p.contentRouting.findProviders(cid)) {
// { id: PeerId, multiaddrs: Multiaddr[] }
}
```
**Before**
```js
const peerInfo = await libp2p.peerRouting.findPeer(peerId)
// peerInfo is a PeerInfo instance
```
**After**
```js
const peer = await libp2p.peerRouting.findPeer(peerId)
// { id: PeerId, multiaddrs: Multiaddr[] }
```
## Connection Manager and Registrar
Registrar was introduced in `libp2p@0.27` along with [libp2p topologies](https://github.com/libp2p/js-libp2p-interfaces/tree/master/src/topology). `Registrar` and `ConnectionManager` were both listening on new connections and keeping their record of the open connections with other peers.
The registrar API was not documented in the [API DOC](../API.md). However, it exposed a useful method for some libp2p users, `libp2p.registrar.getConnection()`. On the other hand, the connection Manager did not provide any methods to access its stored connections. On `libp2p@0.28` we removed this data duplication and the connections are handled solely by the `ConnectionManager`.
**Before**
```js
const connection = libp2p.registrar.getConnection(peerId)
```
**After**
```js
const connection = libp2p.connectionManager.get(peerId)
```
## Events
### Connection Events
Libp2p emits events whenever new connections are established. These emitted events previously providing the [`PeerInfo`](peer-info) of the peer that connected. In `libp2p@0.28` these events are now emitted from the Connection Manager and will now emit the [`connection`](connection) itself.
**Before**
```js
libp2p.on('peer:connect', (peerInfo) => {
// PeerInfo instance
})
libp2p.on('peer:disconnect', (peerInfo) => {
// PeerInfo instance
})
```
**After**
```js
libp2p.connectionManager.on('peer:connect', (connection) => {
// Connection instance
})
libp2p.connectionManager.on('peer:disconnect', (connection) => {
// Connection instance
})
```
### Peer Discovery
**Before**
```js
libp2p.on('peer:discovery', (peerInfo) => {
// PeerInfo instance
})
```
**After**
```js
libp2p.on('peer:discovery', (peerId) => {
// peerId instance
})
```
## Module Updates
With `libp2p@0.28` you should update the following libp2p modules if you are relying on them:
```json
"libp2p-bootstrap": "^0.11.0",
"libp2p-delegated-content-routing": "^0.5.0",
"libp2p-delegated-peer-routing": "^0.5.0",
"libp2p-floodsub": "^0.21.0",
"libp2p-gossipsub": "^0.4.0",
"libp2p-kad-dht": "^0.19.1",
"libp2p-mdns": "^0.14.1",
"libp2p-webrtc-star": "^0.18.0"
```
[connection]: https://github.com/libp2p/js-interfaces/tree/master/src/connection
[multiaddr]: https://github.com/multiformats/js-multiaddr
[peer-id]: https://github.com/libp2p/js-peer-id
[peer-info]: https://github.com/libp2p/js-peer-info

View File

@ -1,8 +1,8 @@
# `js-libp2p` Examples and Tutorials
In this folder, you can find a variety of examples to help you get started in using js-libp2p, in Node.js and in the Browser. Every example as a specific purpose and some of each incorporate a full tutorial that you can follow through, helping you expand your knowledge about libp2p and p2p networks in general.
In this folder, you can find a variety of examples to help you get started in using js-libp2p, in Node.js and in the Browser. Every example has a specific purpose and some incorporate a full tutorial that you can follow through, helping you expand your knowledge about libp2p and p2p networks in general.
Let us know if you find any issue or if you want to contribute and add a new tutorial, feel welcome to submit a PR, thank you!
Let us know if you find any issues, or if you want to contribute and add a new tutorial, feel free to submit a PR, thank you!
## Understanding how libp2p works
@ -22,3 +22,5 @@ Let us know if you find any issue or if you want to contribute and add a new tut
- Running libp2p in the Electron (future)
- [The standard echo net example with libp2p](./echo)
- [A simple chat app with libp2p](./chat)
For go-libp2p examples, check out https://github.com/libp2p/go-libp2p-examples#examples-and-tutorials

View File

@ -2,78 +2,44 @@
/* eslint-disable no-console */
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const multiaddr = require('multiaddr')
const Node = require('./libp2p-bundle')
const pull = require('pull-stream')
const async = require('async')
const Pushable = require('pull-pushable')
const p = Pushable()
let idListener
const { stdinToStream, streamToConsole } = require('./stream')
async.parallel([
(callback) => {
PeerId.createFromJSON(require('./peer-id-dialer'), (err, idDialer) => {
if (err) {
throw err
}
callback(null, idDialer)
})
},
(callback) => {
PeerId.createFromJSON(require('./peer-id-listener'), (err, idListener) => {
if (err) {
throw err
}
callback(null, idListener)
})
}
], (err, ids) => {
if (err) throw err
const peerDialer = new PeerInfo(ids[0])
peerDialer.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
async function run() {
const [idDialer, idListener] = await Promise.all([
PeerId.createFromJSON(require('./peer-id-dialer')),
PeerId.createFromJSON(require('./peer-id-listener'))
])
// Create a new libp2p node on localhost with a randomly chosen port
const nodeDialer = new Node({
peerInfo: peerDialer
})
const peerListener = new PeerInfo(ids[1])
idListener = ids[1]
peerListener.multiaddrs.add('/ip4/127.0.0.1/tcp/10333')
nodeDialer.start((err) => {
if (err) {
throw err
peerId: idDialer,
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
}
console.log('Dialer ready, listening on:')
peerListener.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + idListener.toB58String())
})
nodeDialer.dialProtocol(peerListener, '/chat/1.0.0', (err, conn) => {
if (err) {
throw err
}
console.log('nodeA dialed to nodeB on protocol: /chat/1.0.0')
console.log('Type a message and see what happens')
// Write operation. Data sent as a buffer
pull(
p,
conn
)
// Sink, data converted from buffer to utf8 string
pull(
conn,
pull.map((data) => {
return data.toString('utf8').replace('\n', '')
}),
pull.drain(console.log)
)
process.stdin.setEncoding('utf8')
process.openStdin().on('data', (chunk) => {
var data = chunk.toString()
p.push(data)
})
})
})
})
// Start the libp2p host
await nodeDialer.start()
// Output this node's address
console.log('Dialer ready, listening on:')
nodeDialer.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + idDialer.toB58String())
})
// Dial to the remote peer (the "listener")
const listenerMa = multiaddr(`/ip4/127.0.0.1/tcp/10333/p2p/${idListener.toB58String()}`)
const { stream } = await nodeDialer.dialProtocol(listenerMa, '/chat/1.0.0')
console.log('Dialer dialed to listener on protocol: /chat/1.0.0')
console.log('Type a message and see what happens')
// Send stdin to the stream
stdinToStream(stream)
// Read the stream and output to console
streamToConsole(stream)
}
run()

View File

@ -1,41 +1,13 @@
'use strict'
const TCP = require('libp2p-tcp')
const MulticastDNS = require('libp2p-mdns')
const WS = require('libp2p-websockets')
const Bootstrap = require('libp2p-bootstrap')
const spdy = require('libp2p-spdy')
const KadDHT = require('libp2p-kad-dht')
const mplex = require('libp2p-mplex')
const secio = require('libp2p-secio')
const SECIO = require('libp2p-secio')
const { NOISE } = require('libp2p-noise')
const defaultsDeep = require('@nodeutils/defaults-deep')
const libp2p = require('../../..')
function mapMuxers (list) {
return list.map((pref) => {
if (typeof pref !== 'string') {
return pref
}
switch (pref.trim().toLowerCase()) {
case 'spdy': return spdy
case 'mplex': return mplex
default:
throw new Error(pref + ' muxer not available')
}
})
}
function getMuxers (muxers) {
const muxerPrefs = process.env.LIBP2P_MUXER
if (muxerPrefs && !muxers) {
return mapMuxers(muxerPrefs.split(','))
} else if (muxers) {
return mapMuxers(muxers)
} else {
return [mplex, spdy]
}
}
class Node extends libp2p {
constructor (_options) {
const defaults = {
@ -44,29 +16,8 @@ class Node extends libp2p {
TCP,
WS
],
streamMuxer: getMuxers(_options.muxer),
connEncryption: [ secio ],
peerDiscovery: [
MulticastDNS,
Bootstrap
],
dht: KadDHT
},
config: {
peerDiscovery: {
mdns: {
interval: 10000,
enabled: false
},
bootstrap: {
interval: 10000,
enabled: false,
list: _options.bootstrapList
}
},
dht: {
kBucketSize: 20
}
streamMuxer: [ mplex ],
connEncryption: [ NOISE, SECIO ]
}
}

View File

@ -1,56 +1,42 @@
'use strict'
/* eslint-disable no-console */
const multaddr = require('multiaddr')
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const Node = require('./libp2p-bundle.js')
const pull = require('pull-stream')
const Pushable = require('pull-pushable')
const p = Pushable()
const { stdinToStream, streamToConsole } = require('./stream')
PeerId.createFromJSON(require('./peer-id-listener'), (err, idListener) => {
if (err) {
throw err
}
const peerListener = new PeerInfo(idListener)
peerListener.multiaddrs.add('/ip4/0.0.0.0/tcp/10333')
async function run() {
// Create a new libp2p node with the given multi-address
const idListener = await PeerId.createFromJSON(require('./peer-id-listener'))
const nodeListener = new Node({
peerInfo: peerListener
})
nodeListener.start((err) => {
if (err) {
throw err
peerId: idListener,
addresses: {
listen: ['/ip4/0.0.0.0/tcp/10333']
}
nodeListener.on('peer:connect', (peerInfo) => {
console.log(peerInfo.id.toB58String())
})
nodeListener.handle('/chat/1.0.0', (protocol, conn) => {
pull(
p,
conn
)
pull(
conn,
pull.map((data) => {
return data.toString('utf8').replace('\n', '')
}),
pull.drain(console.log)
)
process.stdin.setEncoding('utf8')
process.openStdin().on('data', (chunk) => {
var data = chunk.toString()
p.push(data)
})
})
console.log('Listener ready, listening on:')
peerListener.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + idListener.toB58String())
})
})
})
// Log a message when a remote peer connects to us
nodeListener.connectionManager.on('peer:connect', (connection) => {
console.log('connected to: ', connection.remotePeer.toB58String())
})
// Handle messages for the protocol
await nodeListener.handle('/chat/1.0.0', async ({ stream }) => {
// Send stdin to the stream
stdinToStream(stream)
// Read the stream and output to console
streamToConsole(stream)
})
// Start listening
await nodeListener.start()
// Output listen addresses to the console
console.log('Listener ready, listening on:')
nodeListener.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + idListener.toB58String())
})
}
run()

View File

@ -0,0 +1,40 @@
'use strict'
/* eslint-disable no-console */
const pipe = require('it-pipe')
const lp = require('it-length-prefixed')
function stdinToStream(stream) {
// Read utf-8 from stdin
process.stdin.setEncoding('utf8')
pipe(
// Read from stdin (the source)
process.stdin,
// Encode with length prefix (so receiving side knows how much data is coming)
lp.encode(),
// Write to the stream (the sink)
stream.sink
)
}
function streamToConsole(stream) {
pipe(
// Read from the stream (the source)
stream.source,
// Decode length-prefixed data
lp.decode(),
// Sink function
async function (source) {
// For each chunk of data
for await (const msg of source) {
// Output the data as a utf8 string
console.log('> ' + msg.toString('utf8').replace('\n', ''))
}
}
)
}
module.exports = {
stdinToStream,
streamToConsole
}

View File

@ -1,3 +1,7 @@
❗❗Outdated: This example is still not refactored with the `0.27.*` release.
WIP on [libp2p/js-libp2p#507](https://github.com/libp2p/js-libp2p/pull/507)
======
# Delegated Routing with Libp2p and IPFS
This example shows how to use delegated peer and content routing. The [Peer and Content Routing Example](../peer-and-content-routing) focuses

View File

@ -44,7 +44,7 @@ class App extends Component {
isLoading: this.state.isLoading + 1
})
this.ipfs.files.cat(this.state.hash, (err, data) => {
this.ipfs.cat(this.state.hash, (err, data) => {
if (err) console.log('Error', err)
this.setState({

View File

@ -1,14 +1,12 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const { NOISE } = require('libp2p-noise')
const Bootstrap = require('libp2p-bootstrap')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
// Find this list at: https://github.com/ipfs/js-ipfs/blob/master/src/core/runtime/config-nodejs.json
const bootstrapers = [
@ -23,51 +21,36 @@ const bootstrapers = [
'/ip4/104.236.151.122/tcp/4001/p2p/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx'
]
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
peerDiscovery: [ Bootstrap ]
},
config: {
peerDiscovery: {
autoDial: true,
bootstrap: {
interval: 20e3,
enabled: true,
list: bootstrapers
}
;(async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO],
peerDiscovery: [Bootstrap]
},
config: {
peerDiscovery: {
bootstrap: {
interval: 60e3,
enabled: true,
list: bootstrapers
}
}
}
})
super(defaultsDeep(_options, defaults))
}
}
node.connectionManager.on('peer:connect', (connection) => {
console.log('Connection established to:', connection.remotePeer.toB58String()) // Emitted when a peer has been found
})
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => {
if (err) { throw err }
node.on('peer:discovery', (peer) => {
node.on('peer:discovery', (peerId) => {
// No need to dial, autoDial is on
console.log('Discovered:', peer.id.toB58String())
console.log('Discovered:', peerId.toB58String())
})
node.on('peer:connect', (peer) => {
console.log('Connection established to:', peer.id.toB58String())
})
})
await node.start()
})();

View File

@ -1,63 +1,48 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const { NOISE } = require('libp2p-noise')
const MulticastDNS = require('libp2p-mdns')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
const defaultsDeep = require('@nodeutils/defaults-deep')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
peerDiscovery: [ MulticastDNS ]
},
config: {
peerDiscovery: {
mdns: {
interval: 20e3,
enabled: true
}
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO],
peerDiscovery: [MulticastDNS]
},
config: {
peerDiscovery: {
mdns: {
interval: 20e3,
enabled: true
}
}
}
})
super(defaultsDeep(_options, defaults))
}
return node
}
function createNode (callback) {
let node
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
node1.on('peer:discovery', (peerId) => console.log('Discovered:', peerId.toB58String()))
node2.on('peer:discovery', (peerId) => console.log('Discovered:', peerId.toB58String()))
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
node1.on('peer:discovery', (peer) => console.log('Discovered:', peer.id.toB58String()))
node2.on('peer:discovery', (peer) => console.log('Discovered:', peer.id.toB58String()))
})
await Promise.all([
node1.start(),
node2.start()
])
})();

View File

@ -4,42 +4,38 @@ A Peer Discovery module enables libp2p to find peers to connect to. Think of the
With these system, a libp2p node can both have a set of nodes to always connect on boot (bootstraper nodes), discover nodes through locality (e.g connected in the same LAN) or through serendipity (random walks on a DHT).
These mechanisms save configuration and enable a node to operate without any explicit dials, it will just work.
These mechanisms save configuration and enable a node to operate without any explicit dials, it will just work. Once new peers are discovered, their known data is stored in the peer's PeerStore.
## 1. Bootstrap list of Peers when booting a node
For this demo, we will connect to IPFS default bootstrapper nodes and so, we will need to support the same set of features those nodes have, that are: TCP, mplex and SECIO. You can see the complete example at [1.js](./1.js).
First, we create our libp2p bundle.
First, we create our libp2p node.
```JavaScript
const Bootstrap = require('libp2p-railing')
class MyBundle extends libp2p {
constructor (peerInfo) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
peerDiscovery: [ Bootstrap ]
},
config: {
peerDiscovery: {
bootstrap: {
interval: 2000,
enabled: true,
list: bootstrapers
}
}
const Libp2p = require('libp2p')
const Bootstrap = require('libp2p-bootstrap')
const node = Libp2p.create({
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ NOISE, SECIO ],
peerDiscovery: [ Bootstrap ]
},
config: {
peerDiscovery: {
bootstrap: {
interval: 60e3,
enabled: true,
list: bootstrapers
}
}
super(defaultsDeep(_options, defaults))
}
}
})
```
In this bundle, we use a `bootstrappers` array listing peers to connect _on boot_. Here is the list used by js-ipfs and go-ipfs.
In this configuration, we use a `bootstrappers` array listing peers to connect _on boot_. Here is the list used by js-ipfs and go-ipfs.
```JavaScript
const bootstrapers = [
@ -58,34 +54,38 @@ const bootstrapers = [
Now, once we create and start the node, we can listen for events such as `peer:discovery` and `peer:connect`, these events tell us when we found a peer, independently of the discovery mechanism used and when we actually dialed to that peer.
```JavaScript
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
const node = await Libp2p.create({
peerId,
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
}
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ NOISE, SECIO ],
peerDiscovery: [ Bootstrap ]
},
config: {
peerDiscovery: {
bootstrap: {
interval: 60e3,
enabled: true,
list: bootstrapers
}
}
}
], (err) => {
if (err) { throw err }
// Emitted when a peer has been found
node.on('peer:discovery', (peer) => {
console.log('Discovered:', peer.id.toB58String())
// Note how we need to dial, even if just to warm up the Connection (by not
// picking any protocol) in order to get a full Connection. The Peer Discovery
// doesn't make any decisions for you.
node.dial(peer, () => {})
})
// Once the dial is complete, this event is emitted.
node.on('peer:connect', (peer) => {
console.log('Connection established to:', peer.id.toB58String())
})
})
node.connectionManager.on('peer:connect', (connection) => {
console.log('Connection established to:', connection.remotePeer.toB58String()) // Emitted when a new connection has been created
})
node.on('peer:discovery', (peerId) => {
// No need to dial, autoDial is on
console.log('Discovered:', peerId.toB58String())
})
await node.start()
```
From running [1.js](./1.js), you should see the following:
@ -101,76 +101,68 @@ Discovered: QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64
Discovered: QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd
Discovered: QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3
Discovered: QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx
Connection established to: QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3
Connection established to: QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd
Connection established to: QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64
Connection established to: QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm
Connection established to: QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM
Connection established to: QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx
Connection established to: QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ
Connection established to: QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z
Connection established to: QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM
Connection established to: QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm
Connection established to: QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu
Connection established to: QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64
Connection established to: QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd
Connection established to: QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3
Connection established to: QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx
```
## 2. MulticastDNS to find other peers in the network
For this example, we need `libp2p-mdns`, go ahead and `npm install` it. You can find the complete solution at [2.js](./2.js).
Update your libp2p bundle to include MulticastDNS.
Update your libp2p configuration to include MulticastDNS.
```JavaScript
class MyBundle extends libp2p {
constructor (peerInfo) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
peerDiscovery: [ MulticastDNS ]
},
config: {
peerDiscovery: {
mdns: {
// Run at 1s so we can observe more quickly, default is 10s
interval: 1000,
enabled: true
}
const Libp2p = require('libp2p')
const MulticastDNS = require('libp2p-mdns')
const createNode = () => {
return Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
}
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ NOISE, SECIO ],
peerDiscovery: [ MulticastDNS ]
},
config: {
peerDiscovery: {
mdns: {
interval: 20e3,
enabled: true
}
}
}
super(defaultsDeep(_options, defaults))
}
})
}
```
To observe it working, spawn two nodes.
```JavaScript
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
const node1 = nodes[0]
const node2 = nodes[1]
node1.on('peer:discovery', (peer) => console.log('Discovered:', peer.id.toB58String()))
node2.on('peer:discovery', (peer) => console.log('Discovered:', peer.id.toB58String()))
})
node1.on('peer:discovery', (peer) => console.log('Discovered:', peer.id.toB58String()))
node2.on('peer:discovery', (peer) => console.log('Discovered:', peer.id.toB58String()))
```
If you run this example, you will see a continuous stream of each peer discovering each other.
If you run this example, you will see the other peers being discovered.
```bash
> node 2.js
Discovered: QmSSbQpuKrxkoXHm1v4Pi35hPN5hUHMZoBoawEs2Nhvi8m
Discovered: QmRcXXhtG8vTqwVBRonKWtV4ovDoC1Fe56WYtcrw694eiJ
Discovered: QmSSbQpuKrxkoXHm1v4Pi35hPN5hUHMZoBoawEs2Nhvi8m
Discovered: QmRcXXhtG8vTqwVBRonKWtV4ovDoC1Fe56WYtcrw694eiJ
Discovered: QmSSbQpuKrxkoXHm1v4Pi35hPN5hUHMZoBoawEs2Nhvi8m
Discovered: QmRcXXhtG8vTqwVBRonKWtV4ovDoC1Fe56WYtcrw694eiJ
```
## 3. Where to find other Peer Discovery Mechanisms
@ -178,5 +170,5 @@ Discovered: QmRcXXhtG8vTqwVBRonKWtV4ovDoC1Fe56WYtcrw694eiJ
There are plenty more Peer Discovery Mechanisms out there, you can:
- Find one in [libp2p-webrtc-star](https://github.com/libp2p/js-libp2p-webrtc-star). Yes, a transport with discovery capabilities! This happens because WebRTC requires a rendezvous point for peers to exchange [SDP](https://tools.ietf.org/html/rfc4317) offer, which means we have one or more points that can introduce peers to each other. Think of it as MulticastDNS for the Web, as in MulticastDNS only works in LAN.
- Any DHT will offer you a discovery capability. You can simple _random-walk_ the routing tables to find other peers to connect to.
- Any DHT will offer you a discovery capability. You can simple _random-walk_ the routing tables to find other peers to connect to. For example [libp2p-kad-dht](https://github.com/libp2p/js-libp2p-kad-dht) can be used for peer discovery. An example how to configure it to enable random walks can be found [here](https://github.com/libp2p/js-libp2p/blob/v0.28.4/doc/CONFIGURATION.md#customizing-dht).
- You can create your own Discovery service, a registry, a list, a radio beacon, you name it!

View File

@ -5,54 +5,55 @@
* Dialer Node
*/
const multiaddr = require('multiaddr')
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const Node = require('./libp2p-bundle')
const pull = require('pull-stream')
const async = require('async')
const pipe = require('it-pipe')
async.parallel([
(cb) => PeerId.createFromJSON(require('./id-d'), cb),
(cb) => PeerId.createFromJSON(require('./id-l'), cb)
], (err, ids) => {
if (err) { throw err }
async function run() {
const [dialerId, listenerId] = await Promise.all([
PeerId.createFromJSON(require('./id-d')),
PeerId.createFromJSON(require('./id-l'))
])
// Dialer
const dialerId = ids[0]
const dialerPeerInfo = new PeerInfo(dialerId)
dialerPeerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
const dialerNode = new Node({
peerInfo: dialerPeerInfo
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
peerId: dialerId
})
// Peer to Dial
const listenerPeerInfo = new PeerInfo(ids[1])
const listenerId = ids[1]
const listenerMultiaddr = '/ip4/127.0.0.1/tcp/10333/p2p/' +
listenerId.toB58String()
listenerPeerInfo.multiaddrs.add(listenerMultiaddr)
// Add peer to Dial (the listener) into the PeerStore
const listenerMultiaddr = '/ip4/127.0.0.1/tcp/10333/p2p/' + listenerId.toB58String()
dialerNode.start((err) => {
if (err) { throw err }
// Start the dialer libp2p node
await dialerNode.start()
console.log('Dialer ready, listening on:')
dialerPeerInfo.multiaddrs.forEach((ma) => console.log(ma.toString() +
'/p2p/' + dialerId.toB58String()))
console.log('Dialer ready, listening on:')
dialerNode.multiaddrs.forEach((ma) => console.log(ma.toString() +
'/p2p/' + dialerId.toB58String()))
console.log('Dialing to peer:', listenerMultiaddr.toString())
dialerNode.dialProtocol(listenerPeerInfo, '/echo/1.0.0', (err, conn) => {
if (err) { throw err }
// Dial the listener node
console.log('Dialing to peer:', listenerMultiaddr)
const { stream } = await dialerNode.dialProtocol(listenerMultiaddr, '/echo/1.0.0')
console.log('nodeA dialed to nodeB on protocol: /echo/1.0.0')
console.log('nodeA dialed to nodeB on protocol: /echo/1.0.0')
pull(
pull.values(['hey']),
conn,
pull.collect((err, data) => {
if (err) { throw err }
console.log('received echo:', data.toString())
})
)
})
})
})
pipe(
// Source data
['hey'],
// Write to the stream, and pass its output to the next function
stream,
// Sink function
async function (source) {
// For each chunk of data
for await (const data of source) {
// Output the data
console.log('received echo:', data.toString())
}
}
)
}
run()

View File

@ -1,41 +1,14 @@
'use strict'
const TCP = require('libp2p-tcp')
const MulticastDNS = require('libp2p-mdns')
const WS = require('libp2p-websockets')
const Bootstrap = require('libp2p-bootstrap')
const spdy = require('libp2p-spdy')
const KadDHT = require('libp2p-kad-dht')
const mplex = require('libp2p-mplex')
const secio = require('libp2p-secio')
const SECIO = require('libp2p-secio')
const { NOISE } = require('libp2p-noise')
const defaultsDeep = require('@nodeutils/defaults-deep')
const libp2p = require('../../..')
function mapMuxers (list) {
return list.map((pref) => {
if (typeof pref !== 'string') {
return pref
}
switch (pref.trim().toLowerCase()) {
case 'spdy': return spdy
case 'mplex': return mplex
default:
throw new Error(pref + ' muxer not available')
}
})
}
function getMuxers (muxers) {
const muxerPrefs = process.env.LIBP2P_MUXER
if (muxerPrefs && !muxers) {
return mapMuxers(muxerPrefs.split(','))
} else if (muxers) {
return mapMuxers(muxers)
} else {
return [mplex, spdy]
}
}
class Node extends libp2p {
constructor (_options) {
const defaults = {
@ -44,29 +17,8 @@ class Node extends libp2p {
TCP,
WS
],
streamMuxer: getMuxers(_options.muxer),
connEncryption: [ secio ],
peerDiscovery: [
MulticastDNS,
Bootstrap
],
dht: KadDHT
},
config: {
peerDiscovery: {
mdns: {
interval: 10000,
enabled: false
},
bootstrap: {
interval: 10000,
enabled: false,
list: _options.bootstrapList
}
},
dht: {
kBucketSize: 20
}
streamMuxer: [ mplex ],
connEncryption: [ NOISE, SECIO ]
}
}

View File

@ -6,41 +6,36 @@
*/
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const Node = require('./libp2p-bundle')
const pull = require('pull-stream')
const series = require('async/series')
const pipe = require('it-pipe')
let listenerId
let listenerNode
async function run() {
const listenerId = await PeerId.createFromJSON(require('./id-l'))
series([
(cb) => {
PeerId.createFromJSON(require('./id-l'), (err, id) => {
if (err) { return cb(err) }
listenerId = id
cb()
})
},
(cb) => {
const listenerPeerInfo = new PeerInfo(listenerId)
listenerPeerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/10333')
listenerNode = new Node({
peerInfo: listenerPeerInfo
})
// Listener libp2p node
const listenerNode = new Node({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/10333']
},
peerId: listenerId
})
listenerNode.on('peer:connect', (peerInfo) => {
console.log('received dial to me from:', peerInfo.id.toB58String())
})
// Log a message when we receive a connection
listenerNode.connectionManager.on('peer:connect', (connection) => {
console.log('received dial to me from:', connection.remotePeer.toB58String())
})
listenerNode.handle('/echo/1.0.0', (protocol, conn) => pull(conn, conn))
listenerNode.start(cb)
}
], (err) => {
if (err) { throw err }
// Handle incoming connections for the protocol by piping from the stream
// back to itself (an echo)
await listenerNode.handle('/echo/1.0.0', ({ stream }) => pipe(stream.source, stream.sink))
// Start listening
await listenerNode.start()
console.log('Listener ready, listening on:')
listenerNode.peerInfo.multiaddrs.forEach((ma) => {
listenerNode.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + listenerId.toB58String())
})
})
}
run()

View File

@ -1,63 +1,53 @@
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const SPDY = require('libp2p-spdy')
const Mplex = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
const pull = require('pull-stream')
const defaultsDeep = require('@nodeutils/defaults-deep')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ SPDY ],
connEncryption: [ SECIO ]
const pipe = require('it-pipe')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO]
}
})
await node.start()
return node
}
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.handle('/a-protocol', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
node2.handle('/a-protocol', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
})
node1.dialProtocol(node2.peerInfo, '/a-protocol', (err, conn) => {
if (err) { throw err }
pull(pull.values(['This information is sent out encrypted to the other peer']), conn)
})
})
const { stream } = await node1.dialProtocol(node2.peerId, '/a-protocol')
await pipe(
['This information is sent out encrypted to the other peer'],
stream
)
})();

View File

@ -4,37 +4,35 @@ libp2p can leverage the encrypted communications from the transports it uses (i.
We call this usage a _connection upgrade_ where given a connection between peer A to peer B, a protocol handshake can be performed that gives that connection new properties.
A byproduct of having these encrypted communications modules is that we can authenticate the peers we are dialing to. You might have noticed that every time we dial to a peer in libp2p space, we always use its PeerId at the end (e.g /ip4/127.0.0.1/tcp/89765/ipfs/QmWCbVw1XZ8hiYBwwshPce2yaTDYTqTaP7GCHGpry3ykWb), this PeerId is generated by hashing the Public Key of the peer. With this, we can create a crypto challenge when dialing to another peer and prove that peer is the owner of a PrivateKey that matches the Public Key we know.
A byproduct of having these encrypted communications modules is that we can authenticate the peers we are dialing to. You might have noticed that every time we dial to a peer in libp2p space, we always use its PeerId at the end (e.g /ip4/127.0.0.1/tcp/89765/p2p/QmWCbVw1XZ8hiYBwwshPce2yaTDYTqTaP7GCHGpry3ykWb), this PeerId is generated by hashing the Public Key of the peer. With this, we can create a crypto challenge when dialing to another peer and prove that peer is the owner of a PrivateKey that matches the Public Key we know.
# 1. Set up encrypted communications with SECIO
# 1. Set up encrypted communications
We will build this example on top of example for [Protocol and Stream Multiplexing](../protocol-and-stream-multiplexing). You will need the module `libp2p-secio` to complete it, go ahead and `npm install libp2p-secio`.
We will build this example on top of example for [Protocol and Stream Multiplexing](../protocol-and-stream-multiplexing). You will need the modules `libp2p-secio`<sup>*</sup> and `libp2p-noise` to complete it, go ahead and `npm install libp2p-secio libp2p-noise`.
SECIO is the crypto channel developed for IPFS, it is a TLS 1.3 like crypto channel that established an encrypted communication channel between two peers.
To add it to your libp2p bundle, all you have to do is:
To add them to your libp2p configuration, all you have to do is:
```JavaScript
const Libp2p = require('libp2p')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
class MyBundle extends libp2p {
constructor (peerInfo) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ SPDY ],
// Attach secio as the crypto channel to use
connEncryption: [ SECIO ]
}
const createNode = () => {
return Libp2p.create({
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
// Attach secio as the crypto channel to use
connEncryption: [ NOISE, SECIO ]
}
super(defaultsDeep(_options, defaults))
}
})
}
```
And that's it, from now on, all your libp2p communications are encrypted. Try running the example [1.js](./1.js) to see it working.
_<sup>*</sup> SECIO is the crypto channel developed for IPFS, it is a TLS 1.3 like crypto channel that established an encrypted communication channel between two peers._
If you want to want to learn more about how SECIO works, you can read the [great write up done by Dominic Tarr](https://github.com/auditdrivencrypto/secure-channel/blob/master/prior-art.md#ipfss-secure-channel).
Important note: SECIO hasn't been audited and so, we do not recommend to trust its security. We intent to move to TLS 1.3 once the specification is finalized and an implementation exists that we can use.

View File

@ -0,0 +1,4 @@
{
"presets": ["@babel/preset-env"],
"plugins": ["syntax-async-functions","transform-regenerator"]
}

View File

@ -1 +0,0 @@
bundle.js

View File

@ -1,29 +0,0 @@
{
"name": "libp2p-in-the-browser",
"version": "0.1.0",
"description": "See other nodes in the network using WebRTC Star discovery mechanism",
"main": "src/index.js",
"scripts": {
"bundle": "browserify src/index.js > public/bundle.js",
"serve": "static public -p 9090 -H '{\"Cache-Control\": \"no-cache, must-revalidate\"}'",
"start": "npm run bundle && npm run serve"
},
"license": "MIT",
"devDependencies": {
"browserify": "^14.5.0",
"concat-stream": "^1.6.0",
"detect-dom-ready": "^1.0.2",
"node-static": "~0.7.10"
},
"dependencies": {
"detect-dom-ready": "^1.0.2",
"libp2p-bootstrap": "~0.9.7",
"libp2p-mplex": "~0.8.5",
"libp2p-secio": "~0.11.1",
"libp2p-spdy": "~0.13.3",
"libp2p-webrtc-star": "~0.15.8",
"libp2p-websocket-star": "~0.10.2",
"libp2p-websockets": "~0.12.2",
"peer-info": "~0.15.1"
}
}

View File

@ -1,14 +0,0 @@
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<title>libp2p in the browser</title>
</head>
<body>
<h1>libp2p node running \o/</h1>
<div id="my-peer"></div>
<div id="swarm"></div>
<script src="bundle.js"></script>
</body>
</html>

View File

@ -1,93 +0,0 @@
'use strict'
const WebRTCStar = require('libp2p-webrtc-star')
const WebSockets = require('libp2p-websockets')
const WebSocketStar = require('libp2p-websocket-star')
const Mplex = require('libp2p-mplex')
const SPDY = require('libp2p-spdy')
const SECIO = require('libp2p-secio')
const Bootstrap = require('libp2p-bootstrap')
const DHT = require('libp2p-kad-dht')
const defaultsDeep = require('@nodeutils/defaults-deep')
const libp2p = require('../../../../')
// Find this list at: https://github.com/ipfs/js-ipfs/blob/master/src/core/runtime/config-browser.json
const bootstrapList = [
'/dns4/ams-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/dns4/sfo-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx',
'/dns4/lon-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/dns4/sfo-2.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/dns4/sfo-3.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/dns4/sgp-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/dns4/nyc-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/dns4/nyc-2.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/dns4/node0.preload.ipfs.io/tcp/443/wss/p2p/QmZMxNdpMkewiVZLMRxaNxUeZpDUb34pWjZ1kZvsd16Zic',
'/dns4/node0.preload.ipfs.io/tcp/443/wss/p2p/Qmbut9Ywz9YEDrz8ySBSgWyJk41Uvm2QJPhwDJzJyGFsD6'
]
class Node extends libp2p {
constructor (_options) {
const wrtcStar = new WebRTCStar({ id: _options.peerInfo.id })
const wsstar = new WebSocketStar({ id: _options.peerInfo.id })
const defaults = {
modules: {
transport: [
wrtcStar,
WebSockets,
wsstar
],
streamMuxer: [
Mplex,
SPDY
],
connEncryption: [
SECIO
],
peerDiscovery: [
wrtcStar.discovery,
wsstar.discovery,
Bootstrap
],
dht: DHT
},
config: {
peerDiscovery: {
autoDial: true,
webRTCStar: {
enabled: true
},
websocketStar: {
enabled: true
},
bootstrap: {
interval: 20e3,
enabled: true,
list: bootstrapList
}
},
relay: {
enabled: true,
hop: {
enabled: false,
active: false
}
},
dht: {
enabled: false
},
EXPERIMENTAL: {
pubsub: false
}
},
connectionManager: {
minPeers: 10,
maxPeers: 50
}
}
super(defaultsDeep(_options, defaults))
}
}
module.exports = Node

View File

@ -1,26 +0,0 @@
'use strict'
const PeerInfo = require('peer-info')
const Node = require('./browser-bundle')
function createNode (callback) {
PeerInfo.create((err, peerInfo) => {
if (err) {
return callback(err)
}
const peerIdStr = peerInfo.id.toB58String()
const ma = `/dns4/star-signal.cloud.ipfs.team/tcp/443/wss/p2p-webrtc-star/p2p/${peerIdStr}`
peerInfo.multiaddrs.add(ma)
const node = new Node({
peerInfo
})
node.idStr = peerIdStr
callback(null, node)
})
}
module.exports = createNode

View File

@ -1,54 +0,0 @@
/* eslint no-console: ["error", { allow: ["log"] }] */
/* eslint max-nested-callbacks: ["error", 5] */
'use strict'
const domReady = require('detect-dom-ready')
const createNode = require('./create-node')
domReady(() => {
const myPeerDiv = document.getElementById('my-peer')
const swarmDiv = document.getElementById('swarm')
createNode((err, node) => {
if (err) {
return console.log('Could not create the Node, check if your browser has WebRTC Support', err)
}
node.on('peer:discovery', (peerInfo) => {
console.log('Discovered a peer:', peerInfo.id.toB58String())
})
node.on('peer:connect', (peerInfo) => {
const idStr = peerInfo.id.toB58String()
console.log('Got connection to: ' + idStr)
const connDiv = document.createElement('div')
connDiv.innerHTML = 'Connected to: ' + idStr
connDiv.id = idStr
swarmDiv.append(connDiv)
})
node.on('peer:disconnect', (peerInfo) => {
const idStr = peerInfo.id.toB58String()
const el = document.getElementById(idStr)
el && el.remove()
})
node.start((err) => {
if (err) {
return console.log(err)
}
const idStr = node.peerInfo.id.toB58String()
const idDiv = document
.createTextNode('Node is ready. ID: ' + idStr)
myPeerDiv.append(idDiv)
console.log('Node is listening o/')
// NOTE: to stop the node
// node.stop((err) => {})
})
})
})

View File

@ -1,24 +1,46 @@
# libp2p running in the Browser
# libp2p in the browser
One of the primary goals with libp2p P2P was to get it fully working in the browser and interopable with the versions running in Go and in Node.js.
This example leverages the [Parcel.js bundler](https://parceljs.org/) to compile and serve the libp2p code in the browser. Parcel uses [Babel](https://babeljs.io/) to handle transpilation of the code. You can use other bundlers such as Webpack or Browserify, but we will not be covering them here.
# 1. Setting up a simple app that lists connections to other nodes
## Setup
Start by installing libp2p's dependencies.
In order to run the example, first install the dependencies from same directory as this README:
```bash
> cd ../../
> npm install
> cd examples/libp2p-in-the-browser
```
cd ./examples/libp2p-in-the-browser
npm install
```
Then simply go into the folder [1](./1) and execute the following
## Running the examples
```bash
> cd 1
> npm install
> npm start
# open your browser in port :9090
Start by running the Parcel server:
```
npm start
```
[Version Published on IPFS](http://ipfs.io/ipfs/Qmbc1J7ehw1dNYachbkCWPto4RsnVvqCKNVzmYEod2gXcy)
The output should look something like this:
```log
$ npm start
> libp2p-in-browser@1.0.0 start
> parcel index.html
Server running at http://localhost:1234
✨ Built in 1000ms.
```
This will compile the code and start a server listening on port [http://localhost:1234](http://localhost:1234). Now open your browser to `http://localhost:1234`. You should see a log of your node's Peer ID, the discovered peers from the Bootstrap module, and connections to those peers as they are created.
Now, if you open a second browser tab to `http://localhost:1234`, you should discover your node from the previous tab. This is due to the fact that the `libp2p-webrtc-star` transport also acts as a Peer Discovery interface. Your node will be notified of any peer that connects to the same signaling server you are connected to. Once libp2p discovers this new peer, it will attempt to establish a direct WebRTC connection.
**Note**: In the example we assign libp2p to `window.libp2p`, in case you would like to play around with the API directly in the browser. You can of course make changes to `index.js` and Parcel will automatically rebuild and reload the browser tabs.
## Going to production?
This example uses public `libp2p-webrtc-star` servers. These servers should be used for experimenting and demos, they **MUST** not be used in production as there is no guarantee on availability.
You can see how to deploy your own signaling server in [libp2p/js-libp2p-webrtc-star/DEPLOYMENT.md](https://github.com/libp2p/js-libp2p-webrtc-star/blob/master/DEPLOYMENT.md).
Once you have your own server running, you should add its listen address in your libp2p node configuration.

View File

@ -0,0 +1,23 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>js-libp2p parcel.js browser example</title>
</head>
<body>
<header>
<h1 id="status">Starting libp2p...</h1>
</header>
<main>
<pre id="output"></pre>
</main>
<script src="./index.js"></script>
</body>
</html>

View File

@ -0,0 +1,77 @@
import 'babel-polyfill'
import Libp2p from 'libp2p'
import Websockets from 'libp2p-websockets'
import WebRTCStar from 'libp2p-webrtc-star'
import { NOISE } from 'libp2p-noise'
import Secio from 'libp2p-secio'
import Mplex from 'libp2p-mplex'
import Boostrap from 'libp2p-bootstrap'
document.addEventListener('DOMContentLoaded', async () => {
// Create our libp2p node
const libp2p = await Libp2p.create({
addresses: {
// Add the signaling server address, along with our PeerId to our multiaddrs list
// libp2p will automatically attempt to dial to the signaling server so that it can
// receive inbound connections from other peers
listen: [
'/dns4/wrtc-star1.par.dwebops.pub/tcp/443/wss/p2p-webrtc-star',
'/dns4/wrtc-star2.sjc.dwebops.pub/tcp/443/wss/p2p-webrtc-star'
]
},
modules: {
transport: [Websockets, WebRTCStar],
connEncryption: [NOISE, Secio],
streamMuxer: [Mplex],
peerDiscovery: [Boostrap]
},
config: {
peerDiscovery: {
bootstrap: {
enabled: true,
list: [
'/dns4/ams-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/dns4/lon-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/dns4/sfo-3.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/dns4/sgp-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/dns4/nyc-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/dns4/nyc-2.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64'
]
}
}
}
})
// UI elements
const status = document.getElementById('status')
const output = document.getElementById('output')
output.textContent = ''
function log (txt) {
console.info(txt)
output.textContent += `${txt.trim()}\n`
}
// Listen for new peers
libp2p.on('peer:discovery', (peerId) => {
log(`Found peer ${peerId.toB58String()}`)
})
// Listen for new connections to peers
libp2p.connectionManager.on('peer:connect', (connection) => {
log(`Connected to ${connection.remotePeer.toB58String()}`)
})
// Listen for peers disconnecting
libp2p.connectionManager.on('peer:disconnect', (connection) => {
log(`Disconnected from ${connection.remotePeer.toB58String()}`)
})
await libp2p.start()
status.innerText = 'libp2p started!'
log(`libp2p id is ${libp2p.peerId.toB58String()}`)
// Export libp2p to the window so you can play with the API
window.libp2p = libp2p
})

View File

@ -0,0 +1,34 @@
{
"name": "libp2p-in-browser",
"version": "1.0.0",
"description": "A libp2p node running in the browser",
"main": "index.js",
"browserslist": [
"last 2 Chrome versions"
],
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "parcel index.html"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"@babel/preset-env": "^7.8.3",
"libp2p": "../../",
"libp2p-bootstrap": "^0.11",
"libp2p-mplex": "^0.9.3",
"libp2p-noise": "^1.1.0",
"libp2p-secio": "^0.12.2",
"libp2p-webrtc-star": "^0.18.0",
"libp2p-websockets": "^0.13.2"
},
"devDependencies": {
"@babel/cli": "^7.8.3",
"@babel/core": "^7.8.3",
"babel-plugin-syntax-async-functions": "^6.13.0",
"babel-plugin-transform-regenerator": "^6.26.0",
"babel-polyfill": "^6.26.0",
"parcel-bundler": "^1.12.4"
}
}

View File

@ -1,77 +1,57 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const KadDHT = require('libp2p-kad-dht')
const defaultsDeep = require('@nodeutils/defaults-deep')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
// we add the DHT module that will enable Peer and Content Routing
dht: KadDHT
},
config: {
dht: {
enabled: true,
kBucketSize: 20
}
const delay = require('delay')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO],
dht: KadDHT
},
config: {
dht: {
enabled: true
}
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
const node3 = nodes[2]
parallel([
(cb) => node1.dial(node2.peerInfo, cb),
(cb) => node2.dial(node3.peerInfo, cb),
// Set up of the cons might take time
(cb) => setTimeout(cb, 300)
], (err) => {
if (err) { throw err }
node1.peerRouting.findPeer(node3.peerInfo.id, (err, peer) => {
if (err) { throw err }
console.log('Found it, multiaddrs are:')
peer.multiaddrs.forEach((ma) => console.log(ma.toString()))
})
})
})
await node.start()
return node
}
;(async () => {
const [node1, node2, node3] = await Promise.all([
createNode(),
createNode(),
createNode()
])
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
await Promise.all([
node1.dial(node2.peerId),
node2.dial(node3.peerId)
])
// The DHT routing tables need a moment to populate
await delay(100)
const peer = await node1.peerRouting.findPeer(node3.peerId)
console.log('Found it, multiaddrs are:')
peer.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${peer.id.toB58String()}`))
})();

View File

@ -1,85 +1,66 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const { NOISE } = require('libp2p-noise')
const CID = require('cids')
const KadDHT = require('libp2p-kad-dht')
const defaultsDeep = require('@nodeutils/defaults-deep')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
// we add the DHT module that will enable Peer and Content Routing
dht: KadDHT
},
config: {
dht: {
enabled: true,
kBucketSize: 20
}
const all = require('it-all')
const delay = require('delay')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO],
dht: KadDHT
},
config: {
dht: {
enabled: true
}
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
const node3 = nodes[2]
parallel([
(cb) => node1.dial(node2.peerInfo, cb),
(cb) => node2.dial(node3.peerInfo, cb),
// Set up of the cons might take time
(cb) => setTimeout(cb, 300)
], (err) => {
if (err) { throw err }
const cid = new CID('QmTp9VkYvnHyrqKQuFPiuZkiX9gPcqj6x5LJ1rmWuSySnL')
node1.contentRouting.provide(cid, (err) => {
if (err) { throw err }
console.log('Node %s is providing %s', node1.peerInfo.id.toB58String(), cid.toBaseEncodedString())
node3.contentRouting.findProviders(cid, 5000, (err, providers) => {
if (err) { throw err }
console.log('Found provider:', providers[0].id.toB58String())
})
})
})
})
await node.start()
return node
}
;(async () => {
const [node1, node2, node3] = await Promise.all([
createNode(),
createNode(),
createNode()
])
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
await Promise.all([
node1.dial(node2.peerId),
node2.dial(node3.peerId)
])
// Wait for onConnect handlers in the DHT
await delay(100)
const cid = new CID('QmTp9VkYvnHyrqKQuFPiuZkiX9gPcqj6x5LJ1rmWuSySnL')
await node1.contentRouting.provide(cid)
console.log('Node %s is providing %s', node1.peerId.toB58String(), cid.toBaseEncodedString())
// wait for propagation
await delay(300)
const providers = await all(node3.contentRouting.findProviders(cid, { timeout: 3000 }))
console.log('Found provider:', providers[0].id.toB58String())
})();

View File

@ -10,31 +10,30 @@ Content Routing is the category of modules that offer a way to find where conten
This example builds on top of the [Protocol and Stream Muxing](../protocol-and-stream-muxing). We need to install `libp2p-kad-dht`, go ahead and `npm install libp2p-kad-dht`. If you want to see the final version, open [1.js](./1.js).
First, let's update our bundle to support Peer Routing and Content Routing.
First, let's update our config to support Peer Routing and Content Routing.
```JavaScript
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
// we add the DHT module that will enable Peer and Content Routing
dht: KadDHT
},
config: {
dht: {
// dht must be enabled
enabled: true,
kBucketSize: 20
}
}
}
const Libp2p = require('libp2p')
const KadDHT = require('libp2p-kad-dht')
super(defaultsDeep(_options, defaults))
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ NOISE, SECIO ],
// we add the DHT module that will enable Peer and Content Routing
dht: KadDHT
},
config: {
dht: {
// dht must be enabled
enabled: true
}
}
}
})
```
Once that is done, we can use the createNode function we developed in the previous example to create 3 nodes. Connect node 1 to node 2 and node 2 to node 3. We will use node 2 as a way to find the whereabouts of node 3
@ -44,22 +43,21 @@ const node1 = nodes[0]
const node2 = nodes[1]
const node3 = nodes[2]
parallel([
(cb) => node1.dial(node2.peerInfo, cb),
(cb) => node2.dial(node3.peerInfo, cb),
// Set up of the cons might take time
(cb) => setTimeout(cb, 100)
], (err) => {
if (err) { throw err }
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
//
node1.peerRouting.findPeer(node3.peerInfo.id, (err, peer) => {
if (err) { throw err }
await Promise.all([
node1.dial(node2.peerId),
node2.dial(node3.peerId)
])
console.log('Found it, multiaddrs are:')
peer.multiaddrs.forEach((ma) => console.log(ma.toString()))
})
})
// Set up of the cons might take time
await delay(100)
const peer = await node1.peerRouting.findPeer(node3.peerId)
console.log('Found it, multiaddrs are:')
peer.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${peer.id.toB58String()}`))
```
You should see the output being something like:
@ -67,8 +65,8 @@ You should see the output being something like:
```Bash
> node 1.js
Found it, multiaddrs are:
/ip4/127.0.0.1/tcp/63617/p2p/QmWrFXvZr9S4iDqycyoyc2zDdrT1jg9wpdenUTdd1LTar6
/ip4/192.168.86.41/tcp/63617/p2p/QmWrFXvZr9S4iDqycyoyc2zDdrT1jg9wpdenUTdd1LTar6
/ip4/127.0.0.1/tcp/63617
/ip4/192.168.86.41/tcp/63617
```
You have successfully used Peer Routing to find a peer that you were not directly connected. Now all you have to do is to dial to the multiaddrs you discovered.
@ -82,17 +80,12 @@ You can find this example completed in [2.js](./2.js), however as you will see i
Instead of calling `peerRouting.findPeer`, we will use `contentRouting.provide` and `contentRouting.findProviders`.
```JavaScript
node1.contentRouting.provide(cid, (err) => {
if (err) { throw err }
await node1.contentRouting.provide(cid)
console.log('Node %s is providing %s', node1.peerId.toB58String(), cid.toBaseEncodedString())
console.log('Node %s is providing %s', node1.peerInfo.id.toB58String(), cid.toBaseEncodedString())
const provs = await all(node3.contentRouting.findProviders(cid, { timeout: 5000 }))
node3.contentRouting.findProviders(cid, 5000, (err, providers) => {
if (err) { throw err }
console.log('Found provider:', providers[0].id.toB58String())
})
})
console.log('Found provider:', providers[0].id.toB58String())
```
The output of your program should look like:

1
examples/pnet/.gitignore vendored Normal file
View File

@ -0,0 +1 @@
tmp/

29
examples/pnet/README.md Normal file
View File

@ -0,0 +1,29 @@
# Private Networking
This example shows how to set up a private network of libp2p nodes.
## Setup
Install dependencies:
```
npm install
```
## Run
Running the example will cause two nodes with the same swarm key to be started and exchange basic information.
```
node index.js
```
### Using different keys
This example includes `TASK` comments that can be used to try the example with different swarm keys. This will
allow you to see how nodes will fail to connect if they are on different private networks and try to connect to
one another.
To change the swarm key of one of the nodes, look through `index.js` for comments starting with `TASK` to indicate
where lines are that pertain to changing the swarm key of node 2.
### Exploring the repos
Once you've run the example you can take a look at the repos in the `./tmp` directory to see how they differ, including
the swarm keys. You should see a `swarm.key` file in each of the repos and when the nodes are on the same private network
this contents of the `swarm.key` files should be the same.

53
examples/pnet/index.js Normal file
View File

@ -0,0 +1,53 @@
/* eslint no-console: ["off"] */
'use strict'
const { Buffer } = require('buffer')
const { generate } = require('libp2p/src/pnet')
const privateLibp2pNode = require('./libp2p-node')
const pipe = require('it-pipe')
// Create a buffer and write the swarm key to it
const swarmKey = Buffer.alloc(95)
generate(swarmKey)
// This key is for testing a different key not working
const otherSwarmKey = Buffer.alloc(95)
generate(otherSwarmKey)
;(async () => {
const node1 = await privateLibp2pNode(swarmKey)
// TASK: switch the commented out line below so we're using a different key, to see the nodes fail to connect
const node2 = await privateLibp2pNode(swarmKey)
// const node2 = await privateLibp2pNode(otherSwarmKey)
await Promise.all([
node1.start(),
node2.start()
])
console.log('nodes started...')
// Add node 2 data to node1's PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
await node1.dial(node2.peerId)
node2.handle('/private', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
const { stream } = await node1.dialProtocol(node2.peerId, '/private')
await pipe(
['This message is sent on a private network'],
stream
)
})()

View File

@ -0,0 +1,39 @@
'use strict'
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const { NOISE } = require('libp2p-noise')
const Protector = require('libp2p/src/pnet')
/**
* privateLibp2pNode returns a libp2p node function that will use the swarm
* key with the given `swarmKey` to create the Protector
*
* @param {Buffer} swarmKey
* @returns {Promise<libp2p>} Returns a libp2pNode function for use in IPFS creation
*/
const privateLibp2pNode = async (swarmKey) => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP], // We're only using the TCP transport for this example
streamMuxer: [MPLEX], // We're only using mplex muxing
// Let's make sure to use identifying crypto in our pnet since the protector doesn't
// care about node identity, and only the presence of private keys
connEncryption: [NOISE, SECIO],
// Leave peer discovery empty, we don't want to find peers. We could omit the property, but it's
// being left in for explicit readability.
// We should explicitly dial pnet peers, or use a custom discovery service for finding nodes in our pnet
peerDiscovery: [],
connProtector: new Protector(swarmKey)
}
})
return node
}
module.exports = privateLibp2pNode

View File

@ -0,0 +1,20 @@
{
"name": "pnet-ipfs-example",
"version": "1.0.0",
"description": "An example of private networking with IPFS",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "node index.js"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"libp2p": "../..",
"libp2p-mplex": "^0.9.3",
"libp2p-noise": "^1.1.0",
"libp2p-secio": "^0.12.1",
"libp2p-tcp": "^0.14.2"
}
}

28
examples/pnet/utils.js Normal file
View File

@ -0,0 +1,28 @@
'use strict'
const fs = require('fs')
const path = require('path')
/**
* mkdirp recursively creates needed folders for the given dir path
* @param {string} dir
* @returns {string} The path that was created
*/
module.exports.mkdirp = (dir) => {
return path
.resolve(dir)
.split(path.sep)
.reduce((acc, cur) => {
const currentPath = path.normalize(acc + path.sep + cur)
try {
fs.statSync(currentPath)
} catch (e) {
if (e.code === 'ENOENT') {
fs.mkdirSync(currentPath)
} else {
throw e
}
}
return currentPath
}, '')
}

View File

@ -1,102 +1,81 @@
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
const pull = require('pull-stream')
const defaultsDeep = require('@nodeutils/defaults-deep')
const MPLEX = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ]
}
const pipe = require('it-pipe')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [NOISE, SECIO]
}
})
super(defaultsDeep(_options, defaults))
}
await node.start()
return node
}
function createNode (callback) {
let node
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
// exact matching
node2.handle('/your-protocol', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle('/your-protocol', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
// semver matching
// multiple protocols
/*
node2.handle('/another-protocol/1.0.1', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
})
*/
// custom func matching
/*
node2.handle('/custom-match-func', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
}, (myProtocol, requestedProtocol, callback) => {
if (myProtocol.indexOf(requestedProtocol)) {
callback(null, true)
} else {
callback(null, false)
node2.handle(['/another-protocol/1.0.0', '/another-protocol/2.0.0'], ({ protocol, stream }) => {
if (protocol === '/another-protocol/2.0.0') {
// handle backwards compatibility
}
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
*/
node1.dialProtocol(node2.peerInfo, '/your-protocol', (err, conn) => {
if (err) { throw err }
pull(pull.values(['my own protocol, wow!']), conn)
})
const { stream } = await node1.dialProtocol(node2.peerId, ['/your-protocol'])
await pipe(
['my own protocol, wow!'],
stream
)
/*
node1.dialProtocol(node2.peerInfo, '/another-protocol/1.0.0', (err, conn) => {
if (err) { throw err }
pull(pull.values(['semver me please']), conn)
})
*/
const { stream } = node1.dialProtocol(node2.peerId, ['/another-protocol/1.0.0'])
/*
node1.dialProtocol(node2.peerInfo, '/custom-match-func/some-query', (err, conn) => {
if (err) { throw err }
pull(pull.values(['do I fall into your criteria?']), conn)
})
await pipe(
['my own protocol, wow!'],
stream
)
*/
})
})();

View File

@ -1,83 +1,65 @@
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const SPDY = require('libp2p-spdy')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
const series = require('async/series')
const pull = require('pull-stream')
const defaultsDeep = require('@nodeutils/defaults-deep')
const MPLEX = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ SPDY ]
}
const pipe = require('it-pipe')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [NOISE, SECIO]
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
node2.handle('/a', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
})
node2.handle('/b', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
})
await node.start()
series([
(cb) => node1.dialProtocol(node2.peerInfo, '/a', (err, conn) => {
if (err) { throw err }
pull(pull.values(['protocol (a)']), conn)
cb()
}),
(cb) => node1.dialProtocol(node2.peerInfo, '/b', (err, conn) => {
if (err) { throw err }
pull(pull.values(['protocol (b)']), conn)
cb()
}),
(cb) => node1.dialProtocol(node2.peerInfo, '/b', (err, conn) => {
if (err) { throw err }
pull(pull.values(['another conn on protocol (b)']), conn)
cb()
})
return node
}
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
})
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.handle(['/a', '/b'], ({ protocol, stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(`from: ${protocol}, msg: ${msg.toString()}`)
}
}
)
})
const { stream: stream1 } = await node1.dialProtocol(node2.peerId, ['/a'])
await pipe(
['protocol (a)'],
stream1
)
const { stream: stream2 } = await node1.dialProtocol(node2.peerId, ['/b'])
await pipe(
['protocol (b)'],
stream2
)
const { stream: stream3 } = await node1.dialProtocol(node2.peerId, ['/b'])
await pipe(
['another stream on protocol (b)'],
stream3
)
})();

View File

@ -1,88 +1,71 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const SPDY = require('libp2p-spdy')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
const series = require('async/series')
const pull = require('pull-stream')
const defaultsDeep = require('@nodeutils/defaults-deep')
const MPLEX = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ SPDY ]
const pipe = require('it-pipe')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [NOISE, SECIO]
}
})
await node.start()
return node
}
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node1.handle('/node-1', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
node1.handle('/node-1', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
})
node2.handle('/node-2', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle('/node-2', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
series([
(cb) => node1.dialProtocol(node2.peerInfo, '/node-2', (err, conn) => {
if (err) { throw err }
pull(pull.values(['from 1 to 2']), conn)
cb()
}),
(cb) => node2.dialProtocol(node1.peerInfo, '/node-1', (err, conn) => {
if (err) { throw err }
pull(pull.values(['from 2 to 1']), conn)
cb()
})
], (err) => {
if (err) { throw err }
console.log('Addresses by which both peers are connected')
node1.peerBook
.getAllArray()
.forEach((peer) => console.log('node 1 to node 2:', peer.isConnected().toString()))
node2.peerBook
.getAllArray()
.forEach((peer) => console.log('node 2 to node 1:', peer.isConnected().toString()))
})
})
const { stream: stream1 } = await node1.dialProtocol(node2.peerId, ['/node-2'])
await pipe(
['from 1 to 2'],
stream1
)
const { stream: stream2 } = await node2.dialProtocol(node1.peerId, ['/node-1'])
await pipe(
['from 2 to 1'],
stream2
)
})();

View File

@ -6,23 +6,33 @@ The feature of agreeing on a protocol over an established connection is what we
# 1. Handle multiple protocols
Let's see _protocol multiplexing_ in action! You will need the following modules for this example: `libp2p`, `libp2p-tcp`, `peer-info`, `async` and `pull-stream`. This example reuses the base left by the [Transports](../transports) example. You can see the complete solution at [1.js](./1.js).
Let's see _protocol multiplexing_ in action! You will need the following modules for this example: `libp2p`, `libp2p-tcp`, `peer-id`, `it-pipe`, `it-buffer` and `streaming-iterables`. This example reuses the base left by the [Transports](../transports) example. You can see the complete solution at [1.js](./1.js).
After creating the nodes, we need to tell libp2p which protocols to handle.
```JavaScript
const pipe = require('it-pipe')
const { map } = require('streaming-iterables')
const { toBuffer } = require('it-buffer')
// ...
const node1 = nodes[0]
const node2 = nodes[1]
// Here we are telling libp2p that is someone dials this node to talk with the `/your-protocol`
// multicodec, the protocol identifier, please call this callback and give it the connection
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
// Here we are telling libp2p that if someone dials this node to talk with the `/your-protocol`
// multicodec, the protocol identifier, please call this handler and give it the stream
// so that incomming data can be handled
node2.handle('/your-protocol', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle('/your-protocol', ({ stream }) => {
pipe(
stream,
source => (async function () {
for await (const msg of source) {
console.log(msg.toString())
}
})()
)
})
```
@ -30,53 +40,54 @@ node2.handle('/your-protocol', (protocol, conn) => {
After the protocol is _handled_, now we can dial to it.
```JavaScript
node1.dialProtocol(node2.peerInfo, '/your-protocol', (err, conn) => {
if (err) { throw err }
pull(pull.values(['my own protocol, wow!']), conn)
})
const { stream } = await node1.dialProtocol(node2.peerId, ['/your-protocol'])
await pipe(
['my own protocol, wow!'],
stream
)
```
You might have seen this in the [Transports](../transports) examples. However, what it was not explained is that you can do more than exact string matching, for example, you can use semver.
```JavaScript
node2.handle('/another-protocol/1.0.1', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle('/another-protocol/1.0.1', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
// ...
node1.dialProtocol(node2.peerInfo, '/another-protocol/1.0.0', (err, conn) => {
if (err) { throw err }
pull(pull.values(['semver me please']), conn)
})
const { stream } = await node1.dialProtocol(node2.peerId, ['/another-protocol/1.0.0'])
await pipe(
['my own protocol, wow!'],
stream
)
```
This feature is super power for network protocols. It works in the same way as versioning your RPC/REST API, but for anything that goes in the wire. We had to use this feature to upgrade protocols within the IPFS Stack (i.e Bitswap) and we successfully managed to do so without any network splits.
There is still one last feature, you can create your custom match functions.
There is still one last feature, you can provide multiple protocols for the same handler. If you have a backwards incompatible change, but it only requires minor changes to the code, you may prefer to do protocol checking instead of having multiple handlers
```JavaScript
node2.handle('/custom-match-func', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
}, (myProtocol, requestedProtocol, callback) => {
// This is all custom. I'm checking the base path matches, think of this
// as a HTTP routing table.
if (myProtocol.indexOf(requestedProtocol)) {
callback(null, true)
} else {
callback(null, false)
node2.handle(['/another-protocol/1.0.0', '/another-protocol/2.0.0'], ({ protocol, stream }) => {
if (protocol === '/another-protocol/2.0.0') {
// handle backwards compatibility
}
})
// ...
node1.dialProtocol(node2.peerInfo, '/custom-match-func/some-query', (err, conn) => {
if (err) { throw err }
pull(pull.values(['do I fall into your criteria?']), conn)
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
```
@ -84,77 +95,68 @@ Try all of this out by executing [1.js](./1.js).
# 2. Reuse existing connection
The example above would require a node to create a whole new connection for every time it dials in one of the protocols, this is a waste of resources and also it might be simply not possible (e.g lack of file descriptors, not enough ports being open, etc). What we really want is to dial a connection once and then multiplex several virtual connections (stream) over a single connection, this is where _stream multiplexing_ comes into play.
The examples above would require a node to create a whole new connection for every time it dials in one of the protocols, this is a waste of resources and also it might be simply not possible (e.g lack of file descriptors, not enough ports being open, etc). What we really want is to dial a connection once and then multiplex several virtual connections (stream) over a single connection, this is where _stream multiplexing_ comes into play.
Stream multiplexing is a old concept, in fact it happens in many of the layers of the [OSI System](https://en.wikipedia.org/wiki/OSI_model), in libp2p we make this feature to our avail by letting the user pick which module for stream multiplexing to use.
Stream multiplexing is an old concept, in fact it happens in many of the layers of the [OSI System](https://en.wikipedia.org/wiki/OSI_model). In libp2p, we make this feature to our avail by letting the user pick which module for stream multiplexing to use.
Currently, we have two available [libp2p-spdy](https://github.com/libp2p/js-libp2p-spdy) and [libp2p-mplex](https://github.com/libp2p/js-libp2p-mplex) and pluging them in is as easy as adding another transport. Let's revisit our libp2p bundle.
Currently, we have [libp2p-mplex](https://github.com/libp2p/js-libp2p-mplex) and pluging it in is as easy as adding a transport. Let's revisit our libp2p configuration.
```JavaScript
const SPDY = require('libp2p-spdy')
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
//...
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
// Here we are adding the SPDY muxer to our libp2p bundle.
// Thanks to protocol muxing, a libp2p bundle can support multiple Stream Muxers at the same
// time and pick the right one when dialing to a node
streamMuxer: [ SPDY ]
}
}
super(defaultsDeep(_options, defaults))
}
const createNode = () => {
return Libp2p.create({
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ]
}
})
}
```
With this, we can dial as many times as we want to a peer and always reuse the same established underlying connection.
```JavaScript
node2.handle('/a', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle(['/a', '/b'], ({ protocol, stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(`from: ${protocol}, msg: ${msg.toString()}`)
}
}
)
})
node2.handle('/b', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
})
const { stream } = await node1.dialProtocol(node2.peerId, ['/a'])
await pipe(
['protocol (a)'],
stream
)
series([
(cb) => node1.dialProtocol(node2.peerInfo, '/a', (err, conn) => {
if (err) { throw err }
pull(pull.values(['protocol (a)']), conn)
cb()
}),
(cb) => node1.dialProtocol(node2.peerInfo, '/b', (err, conn) => {
if (err) { throw err }
pull(pull.values(['protocol (b)']), conn)
cb()
}),
(cb) => node1.dialProtocol(node2.peerInfo, '/b', (err, conn) => {
if (err) { throw err }
pull(pull.values(['another conn on protocol (b)']), conn)
cb()
})
])
const { stream: stream2 } = await node1.dialProtocol(node2.peerId, ['/b'])
await pipe(
['protocol (b)'],
stream2
)
const { stream: stream3 } = await node1.dialProtocol(node2.peerId, ['/b'])
await pipe(
['another stream on protocol (b)'],
stream3
)
```
By running [2.js](./2.js) you should see the following result:
```
> node 2.js
protocol (a)
protocol (b)
another protocol (b)
from: /a, msg: protocol (a)
from: /b, msg: protocol (b)
from: /b, msg: another stream on protocol (b)
```
# 3. Bidirectional connections
@ -168,8 +170,5 @@ You can see this working on example [3.js](./3.js). The result should look like
```Bash
> node 3.js
from 1 to 2
Addresses by which both peers are connected
node 1 to node 2: /ip4/127.0.0.1/tcp/50629/p2p/QmZwMKTo6wG4Te9A6M2eJnWDpR8uhsGed4YRegnV5DcKiv
node 2 to node 1: /ip4/127.0.0.1/tcp/50630/p2p/QmRgormJQeDyXhDKma11eUtksoh8vWmeBoxghVt4meauW9
from 2 to 1
```

View File

@ -1,83 +1,53 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const { Buffer } = require('buffer')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const MulticastDNS = require('libp2p-mdns')
const defaultsDeep = require('@nodeutils/defaults-deep')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
const series = require('async/series')
const Gossipsub = require('libp2p-gossipsub')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
peerDiscovery: [ MulticastDNS ]
},
config: {
peerDiscovery: {
mdns: {
interval: 2000,
enabled: true
}
},
EXPERIMENTAL: {
pubsub: true
}
}
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO],
pubsub: Gossipsub
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({
peerInfo
})
node.start(cb)
}
], (err) => callback(err, node))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
node1.once('peer:connect', (peer) => {
console.log('connected to %s', peer.id.toB58String())
// Subscribe to the topic 'news'
node1.pubsub.subscribe('news',
(msg) => console.log(msg.from, msg.data.toString()),
() => {
setInterval(() => {
// Publish the message on topic 'news'
node2.pubsub.publish(
'news',
Buffer.from('Bird bird bird, bird is the word!'),
() => {}
)
}, 1000)
}
)
})
})
await node.start()
return node
}
;(async () => {
const topic = 'news'
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
await node1.dial(node2.peerId)
await node1.pubsub.subscribe(topic, (msg) => {
console.log(`node1 received: ${msg.data.toString()}`)
})
await node2.pubsub.subscribe(topic, (msg) => {
console.log(`node2 received: ${msg.data.toString()}`)
})
// node2 publishes "news" every second
setInterval(() => {
node2.pubsub.publish(topic, Buffer.from('Bird bird bird, bird is the word!'))
}, 1000)
})()

View File

@ -1,6 +1,6 @@
# Publish Subscribe
Publish Subscribe is also included on the stack. Currently, we have on PubSub implementation which we ship by default [libp2p-floodsub](https://github.com/libp2p/js-libp2p-floodsub), with many more being researched at [research-pubsub](https://github.com/libp2p/research-pubsub).
Publish Subscribe is also included on the stack. Currently, we have two PubSub implementation available [libp2p-floodsub](https://github.com/libp2p/js-libp2p-floodsub) and [libp2p-gossipsub](https://github.com/ChainSafe/js-libp2p-gossipsub), with many more being researched at [research-pubsub](https://github.com/libp2p/research-pubsub).
We've seen many interesting use cases appear with this, here are some highlights:
@ -12,39 +12,77 @@ We've seen many interesting use cases appear with this, here are some highlights
For this example, we will use MulticastDNS for automatic Peer Discovery. This example is based the previous examples found in [Discovery Mechanisms](../discovery-mechanisms). You can find the complete version at [1.js](./1.js).
Using PubSub is super simple, all you have to do is start a libp2p node with `EXPERIMENTAL.pubsub` set to true.
Using PubSub is super simple, you only need to provide the implementation of your choice and you are ready to go. No need for extra configuration.
First, let's update our libp2p configuration with a pubsub implementation.
```JavaScript
node1.once('peer:connect', (peer) => {
console.log('connected to %s', peer.id.toB58String())
const Libp2p = require('libp2p')
const Gossipsub = require('libp2p-gossipsub')
// Subscribe to the topic 'news'
node1.pubsub.subscribe('news',
(msg) => console.log(msg.from, msg.data.toString()),
() => {
setInterval(() => {
// Publish the message on topic 'news'
node2.pubsub.publish(
'news',
Buffer.from('Bird bird bird, bird is the word!'),
() => {}
)
}, 1000)
}
)
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ NOISE, SECIO ],
// we add the Pubsub module we want
pubsub: Gossipsub
}
})
```
Once that is done, we only need to create a few libp2p nodes, connect them and everything is ready to start using pubsub.
```JavaScript
const topic = 'news'
const node1 = nodes[0]
const node2 = nodes[1]
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
await node1.dial(node2.peerId)
await node1.pubsub.subscribe(topic, (msg) => {
console.log(`node1 received: ${msg.data.toString()}`)
})
await node2.pubsub.subscribe(topic, (msg) => {
console.log(`node2 received: ${msg.data.toString()}`)
})
// node2 publishes "news" every second
setInterval(() => {
node2.pubsub.publish(topic, Buffer.from('Bird bird bird, bird is the word!'))
}, 1000)
```
The output of the program should look like:
```
> node 1.js
connected to QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
node2 received: Bird bird bird, bird is the word!
node1 received: Bird bird bird, bird is the word!
node2 received: Bird bird bird, bird is the word!
node1 received: Bird bird bird, bird is the word!
```
You can change the pubsub `emitSelf` option if you don't want the publishing node to receive its own messages.
```JavaScript
const defaults = {
config: {
pubsub: {
enabled: true,
emitSelf: false
}
}
}
```
## 2. Future work

View File

@ -1,39 +1,32 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../..')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [
TCP
]
}
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
// To signall the addresses we want to be available, we use
// the multiaddr format, a self describable address
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
connEncryption: [NOISE, SECIO]
}
})
super(defaultsDeep(_options, defaults))
}
await node.start()
return node
}
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({ peerInfo: peerInfo })
node.start(cb)
}
], (err) => {
if (err) { throw err }
;(async () => {
const node = await createNode()
console.log('node has started (true/false):', node.isStarted())
console.log('listening on:')
node.peerInfo.multiaddrs.forEach((ma) => console.log(ma.toString()))
})
node.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${node.peerId.toB58String()}`))
})();

View File

@ -1,69 +1,60 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../..')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
const parallel = require('async/parallel')
const pull = require('pull-stream')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
const MPLEX = require('libp2p-mplex')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [
TCP
]
}
const pipe = require('it-pipe')
const concat = require('it-concat')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
// To signall the addresses we want to be available, we use
// the multiaddr format, a self describable address
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
connEncryption: [NOISE, SECIO],
streamMuxer: [MPLEX]
}
})
super(defaultsDeep(_options, defaults))
}
}
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({ peerInfo: peerInfo })
node.start(cb)
}
], (err) => callback(err, node))
await node.start()
return node
}
function printAddrs (node, number) {
console.log('node %s is listening on:', number)
node.peerInfo.multiaddrs.forEach((ma) => console.log(ma.toString()))
node.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${node.peerId.toB58String()}`))
}
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
printAddrs(node1, '1')
printAddrs(node2, '2')
node2.handle('/print', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle('/print', async ({ stream }) => {
const result = await pipe(
stream,
concat
)
console.log(result.toString())
})
node1.dialProtocol(node2.peerInfo, '/print', (err, conn) => {
if (err) { throw err }
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
const { stream } = await node1.dialProtocol(node2.peerId, '/print')
pull(pull.values(['Hello', ' ', 'p2p', ' ', 'world', '!']), conn)
})
})
await pipe(
['Hello', ' ', 'p2p', ' ', 'world', '!'],
stream
)
})();

View File

@ -1,70 +1,57 @@
/* eslint-disable no-console */
'use strict'
const libp2p = require('../../')
const Libp2p = require('../..')
const TCP = require('libp2p-tcp')
const WebSockets = require('libp2p-websockets')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
const parallel = require('async/parallel')
const pull = require('pull-stream')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
const MPLEX = require('libp2p-mplex')
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [
TCP,
WebSockets
]
const pipe = require('it-pipe')
const createNode = async (transports, addresses = []) => {
if (!Array.isArray(addresses)) {
addresses = [addresses]
}
const node = await Libp2p.create({
addresses: {
listen: addresses.map((a) => a)
},
modules: {
transport: transports,
connEncryption: [NOISE, SECIO],
streamMuxer: [MPLEX]
}
})
await node.start()
return node
}
function printAddrs(node, number) {
console.log('node %s is listening on:', number)
node.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${node.peerId.toB58String()}`))
}
function print ({ stream }) {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
super(defaultsDeep(_options, defaults))
}
}
function createNode (addrs, callback) {
if (!Array.isArray(addrs)) {
addrs = [addrs]
}
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
addrs.forEach((addr) => peerInfo.multiaddrs.add(addr))
node = new MyBundle({ peerInfo: peerInfo })
node.start(cb)
}
], (err) => callback(err, node))
}
function printAddrs (node, number) {
console.log('node %s is listening on:', number)
node.peerInfo.multiaddrs.forEach((ma) => console.log(ma.toString()))
}
function print (protocol, conn) {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
)
}
parallel([
(cb) => createNode('/ip4/0.0.0.0/tcp/0', cb),
(cb) => createNode(['/ip4/0.0.0.0/tcp/0', '/ip4/127.0.0.1/tcp/10000/ws'], cb),
(cb) => createNode('/ip4/127.0.0.1/tcp/20000/ws', cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
const node3 = nodes[2]
;(async () => {
const [node1, node2, node3] = await Promise.all([
createNode([TCP], '/ip4/0.0.0.0/tcp/0'),
createNode([TCP, WebSockets], ['/ip4/0.0.0.0/tcp/0', '/ip4/127.0.0.1/tcp/10000/ws']),
createNode([WebSockets], '/ip4/127.0.0.1/tcp/20000/ws')
])
printAddrs(node1, '1')
printAddrs(node2, '2')
@ -74,21 +61,28 @@ parallel([
node2.handle('/print', print)
node3.handle('/print', print)
node1.dialProtocol(node2.peerInfo, '/print', (err, conn) => {
if (err) { throw err }
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
node3.peerStore.addressBook.set(node1.peerId, node1.multiaddrs)
pull(pull.values(['node 1 dialed to node 2 successfully']), conn)
})
// node 1 (TCP) dials to node 2 (TCP+WebSockets)
const { stream } = await node1.dialProtocol(node2.peerId, '/print')
await pipe(
['node 1 dialed to node 2 successfully'],
stream
)
node2.dialProtocol(node3.peerInfo, '/print', (err, conn) => {
if (err) { throw err }
// node 2 (TCP+WebSockets) dials to node 2 (WebSockets)
const { stream: stream2 } = await node2.dialProtocol(node3.peerId, '/print')
await pipe(
['node 2 dialed to node 3 successfully'],
stream2
)
pull(pull.values(['node 2 dialed to node 3 successfully']), conn)
})
node3.dialProtocol(node1.peerInfo, '/print', (err, conn) => {
if (err) {
console.log('node 3 failed to dial to node 1 with:', err.message)
}
})
})
// node 3 (listening WebSockets) can dial node 1 (TCP)
try {
await node3.dialProtocol(node1.peerId, '/print')
} catch (err) {
console.log('node 3 failed to dial to node 1 with:', err.message)
}
})();

View File

@ -1,85 +1,65 @@
# [Transports](http://libp2p.io/implementations/#transports)
libp2p doesn't make assumptions for you, instead, it enables you as the developer of the application to pick the modules you need to run your application, which can vary depending on the runtime you are executing. A libp2p node can use one or more Transports to dial and listen for Connections. These transports are modules that offer a clean interface for dialing and listening, defined by the [interface-transport](https://github.com/libp2p/interface-transport) specification. Some examples of possible transports are: TCP, UTP, WebRTC, QUIC, HTTP, Pigeon and so on.
libp2p doesn't make assumptions for you, instead, it enables you as the developer of the application to pick the modules you need to run your application, which can vary depending on the runtime you are executing. A libp2p node can use one or more Transports to dial and listen for Connections. These transports are modules that offer a clean interface for dialing and listening, defined by the [interface-transport](https://github.com/libp2p/js-interfaces/tree/master/src/transport) specification. Some examples of possible transports are: TCP, UTP, WebRTC, QUIC, HTTP, Pigeon and so on.
A more complete definition of what is a transport can be found on the [interface-transport](https://github.com/libp2p/interface-transport) specification. A way to recognize a candidate transport is through the badge:
A more complete definition of what is a transport can be found on the [interface-transport](https://github.com/libp2p/js-interfaces/tree/master/src/transport) specification. A way to recognize a candidate transport is through the badge:
[![](https://raw.githubusercontent.com/diasdavid/interface-transport/master/img/badge.png)](https://raw.githubusercontent.com/diasdavid/interface-transport/master/img/badge.png)
## 1. Creating a libp2p Bundle with TCP
## 1. Creating a libp2p node with TCP
When using libp2p, you always want to create your own libp2p Bundle, that is, pick your set of modules and create your network stack with the properties you need. In this example, we will create a bundle with TCP. You can find the complete solution on the file [1.js](./1.js).
When using libp2p, you need properly configure it, that is, pick your set of modules and create your network stack with the properties you need. In this example, we will create a libp2p node TCP. You can find the complete solution on the file [1.js](./1.js).
You will need 5 deps total, so go ahead and install all of them with:
You will need 4 dependencies total, so go ahead and install all of them with:
```bash
> npm install libp2p libp2p-tcp peer-info async @nodeutils/defaults-deep
> npm install libp2p libp2p-tcp libp2p-secio peer-info
```
Then, on your favorite text editor create a file with the `.js` extension. I've called mine `1.js`.
First thing is to create our own bundle! Insert:
First thing is to create our own libp2p node! Insert:
```JavaScript
'use strict'
const libp2p = require('libp2p')
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
// This MyBundle class is your libp2p bundle packed with TCP
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
// modules is a JS object that will describe the components
// we want for our libp2p bundle
modules: {
transport: [
TCP
]
}
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
// To signall the addresses we want to be available, we use
// the multiaddr format, a self describable address
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [ TCP ],
connEncryption: [ NOISE, SECIO ]
}
})
super(defaultsDeep(_options, defaults))
}
await node.start()
return node
}
```
Now that we have our own MyBundle class that extends libp2p, let's create a node with it. We will use `async/waterfall` just for code structure, but you don't need to. Append to the same file:
Now that we have a function to create our own libp2p node, let's create a node with it.
```JavaScript
let node
const node = await createNode()
waterfall([
// First we create a PeerInfo object, which will pack the
// info about our peer. Creating a PeerInfo is an async
// operation because we use the WebCrypto API
// (yeei Universal JS)
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
// To signall the addresses we want to be available, we use
// the multiaddr format, a self describable address
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
// Now we can create a node with that PeerInfo object
node = new MyBundle({ peerInfo: peerInfo })
// Last, we start the node!
node.start(cb)
}
], (err) => {
if (err) { throw err }
// At this point the node has started
console.log('node has started (true/false):', node.isStarted())
// And we can print the now listening addresses.
// If you are familiar with TCP, you might have noticed
// that we specified the node to listen in 0.0.0.0 and port
// 0, which means "listen in any network interface and pick
// a port for me
console.log('listening on:')
node.peerInfo.multiaddrs.forEach((ma) => console.log(ma.toString()))
})
// At this point the node has started
console.log('node has started (true/false):', node.isStarted())
// And we can print the now listening addresses.
// If you are familiar with TCP, you might have noticed
// that we specified the node to listen in 0.0.0.0 and port
// 0, which means "listen in any network interface and pick
// a port for me
console.log('listening on:')
node.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${node.peerId.toB58String()}`))
```
Running this should result in something like:
@ -96,78 +76,61 @@ That `QmW2cKTakTYqbQkUzBTEGXgWYFj1YEPeUndE1YWs6CBzDQ` is the PeerId that was cre
## 2. Dialing from one node to another node
Now that we have our bundle, let's create two nodes and make them dial to each other! You can find the complete solution at [2.js](./2.js).
Now that we have our `createNode` function, let's create two nodes and make them dial to each other! You can find the complete solution at [2.js](./2.js).
For this step, we will need one more dependency.
```bash
> npm install pull-stream
> npm install it-pipe it-buffer
```
And we also need to import the module on our .js file:
```js
const pull = require('pull-stream')
const pipe = require('it-pipe')
const { toBuffer } = require('it-buffer')
```
We are going to reuse the MyBundle class from step 1, but this time to make things simpler, we will create two functions, one to create nodes and another to print the addrs to avoid duplicating code.
We are going to reuse the `createNode` function from step 1, but this time to make things simpler, we will create another function to print the addrs to avoid duplicating code.
```JavaScript
function createNode (callback) {
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
node = new MyBundle({ peerInfo: peerInfo })
node.start(cb)
}
], (err) => callback(err, node))
}
function printAddrs (node, number) {
console.log('node %s is listening on:', number)
node.peerInfo.multiaddrs.forEach((ma) => console.log(ma.toString()))
node.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${node.peerId.toB58String()}`))
}
```
Now we are going to use `async/parallel` to create two nodes, print their addresses and dial from one node to the other. We already added `async` as a dependency, but still need to import `async/parallel`:
```js
const parallel = require('async/parallel')
```
Then,
```js
parallel([
(cb) => createNode(cb),
(cb) => createNode(cb)
], (err, nodes) => {
if (err) { throw err }
const node1 = nodes[0]
const node2 = nodes[1]
;(async () => {
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
printAddrs(node1, '1')
printAddrs(node2, '2')
node2.handle('/print', (protocol, conn) => {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
node2.handle('/print', ({ stream }) => {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
})
node1.dialProtocol(node2.peerInfo, '/print', (err, conn) => {
if (err) { throw err }
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
const { stream } = await node1.dialProtocol(node2.peerId, '/print')
pull(pull.values(['Hello', ' ', 'p2p', ' ', 'world', '!']), conn)
})
})
await pipe(
['Hello', ' ', 'p2p', ' ', 'world', '!'],
stream
)
})();
```
The result should be look like:
@ -195,46 +158,29 @@ In this example, we will need to also install `libp2p-websockets`, go ahead and
> npm install libp2p-websockets
```
We want to create 3 nodes, one with TCP, one with TCP+WebSockets and one with just WebSockets. We need to update our `MyBundle` class to contemplate WebSockets as well:
We want to create 3 nodes, one with TCP, one with TCP+WebSockets and one with just WebSockets. We need to update our `createNode` function to contemplate WebSockets as well. Moreover, let's upgrade our function to enable us to pick the addrs in which a node will start a listener:
```JavaScript
const WebSockets = require('libp2p-websockets')
// ...
class MyBundle extends libp2p {
constructor (_options) {
const defaults = {
modules: {
transport: [
TCP,
WebSockets
]
}
}
super(defaultsDeep(_options, defaults))
}
}
```
Now that we have our bundle ready, let's upgrade our createNode function to enable us to pick the addrs in which a node will start a listener.
```JavaScript
function createNode (addrs, callback) {
if (!Array.isArray(addrs)) {
addrs = [addrs]
const createNode = async (transports, multiaddrs = []) => {
if (!Array.isArray(multiaddrs)) {
multiaddrs = [multiaddrs]
}
let node
waterfall([
(cb) => PeerInfo.create(cb),
(peerInfo, cb) => {
addrs.forEach((addr) => peerInfo.multiaddrs.add(addr))
node = new MyBundle({ peerInfo: peerInfo })
node.start(cb)
const node = await Libp2p.create({
addresses: {
listen: multiaddrs.map((a) => multiaddr(a))
},
modules: {
transport: transports,
connEncryption: [SECIO],
streamMuxer: [MPLEX]
}
], (err) => callback(err, node))
})
await node.start()
return node
}
```
@ -243,58 +189,60 @@ As a rule, a libp2p node will only be capable of using a transport if: a) it has
Let's update our flow to create nodes and see how they behave when dialing to each other:
```JavaScript
parallel([
(cb) => createNode('/ip4/0.0.0.0/tcp/0', cb),
// Here we add an extra multiaddr that has a /ws at the end, this means that we want
// to create a TCP socket, but mount it as WebSockets instead.
(cb) => createNode(['/ip4/0.0.0.0/tcp/0', '/ip4/127.0.0.1/tcp/10000/ws'], cb),
(cb) => createNode('/ip4/127.0.0.1/tcp/20000/ws', cb)
], (err, nodes) => {
if (err) { throw err }
const WebSockets = require('libp2p-websockets')
const TCP = require('libp2p-tcp')
const node1 = nodes[0]
const node2 = nodes[1]
const node3 = nodes[2]
const [node1, node2, node3] = await Promise.all([
createNode([TCP], '/ip4/0.0.0.0/tcp/0'),
createNode([TCP, WebSockets], ['/ip4/0.0.0.0/tcp/0', '/ip4/127.0.0.1/tcp/10000/ws']),
createNode([WebSockets], '/ip4/127.0.0.1/tcp/20000/ws')
])
printAddrs(node1, '1')
printAddrs(node2, '2')
printAddrs(node3, '3')
printAddrs(node1, '1')
printAddrs(node2, '2')
printAddrs(node3, '3')
node1.handle('/print', print)
node2.handle('/print', print)
node3.handle('/print', print)
node1.handle('/print', print)
node2.handle('/print', print)
node3.handle('/print', print)
// node 1 (TCP) dials to node 2 (TCP+WebSockets)
node1.dialProtocol(node2.peerInfo, '/print', (err, conn) => {
if (err) { throw err }
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
node3.peerStore.addressBook.set(node1.peerId, node1.multiaddrs)
pull(pull.values(['node 1 dialed to node 2 successfully']), conn)
})
// node 1 (TCP) dials to node 2 (TCP+WebSockets)
const { stream } = await node1.dialProtocol(node2.peerId, '/print')
await pipe(
['node 1 dialed to node 2 successfully'],
stream
)
// node 2 (TCP+WebSockets) dials to node 2 (WebSockets)
node2.dialProtocol(node3.peerInfo, '/print', (err, conn) => {
if (err) { throw err }
// node 2 (TCP+WebSockets) dials to node 2 (WebSockets)
const { stream: stream2 } = await node2.dialProtocol(node3.peerId, '/print')
await pipe(
['node 2 dialed to node 3 successfully'],
stream2
)
pull(pull.values(['node 2 dialed to node 3 successfully']), conn)
})
// node 3 (WebSockets) attempts to dial to node 1 (TCP)
node3.dialProtocol(node1.peerInfo, '/print', (err, conn) => {
if (err) {
console.log('node 3 failed to dial to node 1 with:', err.message)
}
})
})
// node 3 (WebSockets) attempts to dial to node 1 (TCP)
try {
await node3.dialProtocol(node1.peerId, '/print')
} catch (err) {
console.log('node 3 failed to dial to node 1 with:', err.message)
}
```
`print` is a function created using the code from 2.js, but factored into its own function to save lines, here it is:
```JavaScript
function print (protocol, conn) {
pull(
conn,
pull.map((v) => v.toString()),
pull.log()
function print ({ stream }) {
pipe(
stream,
async function (source) {
for await (const msg of source) {
console.log(msg.toString())
}
}
)
}
```
@ -312,18 +260,19 @@ node 2 is listening on:
/ip4/192.168.2.156/tcp/62619/p2p/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
node 3 is listening on:
/ip4/127.0.0.1/tcp/20000/ws/p2p/QmVq1PWh3VSDYdFqYMtqp4YQyXcrH27N7968tGdM1VQPj1
node 3 failed to dial to node 1 with: No available transport to dial to
node 1 dialed to node 2 successfully
node 2 dialed to node 3 successfully
node 3 failed to dial to node 1 with:
Error: No transport available for address /ip4/127.0.0.1/tcp/51482
```
As expected, we created 3 nodes, node 1 with TCP, node 2 with TCP+WebSockets and node 3 with just WebSockets. node 1 -> node 2 and node 2 -> node 3 managed to dial correctly because they shared a common transport, however, node 3 -> node 1 failed because they didn't share any.
## 4. How to create a new libp2p transport
Today there are already 3 transports available, one in the works and plenty to come, you can find these at [interface-transport implementations](https://github.com/libp2p/interface-transport#modules-that-implement-the-interface) list.
Today there are already several transports available and plenty to come, you can find these at [interface-transport implementations](https://github.com/libp2p/js-interfaces/tree/master/src/transport#modules-that-implement-the-interface) list.
Adding more transports is done through the same way as you added TCP and WebSockets. Some transports might offer extra functionalities, but as far as libp2p is concerned, if it follows the interface defined at the [spec](https://github.com/libp2p/interface-transport#api) it will be able to use it.
Adding more transports is done through the same way as you added TCP and WebSockets. Some transports might offer extra functionalities, but as far as libp2p is concerned, if it follows the interface defined at the [spec](https://github.com/libp2p/js-interfaces/tree/master/src/transport#api) it will be able to use it.
If you decide to implement a transport yourself, please consider adding to the list so that others can use it as well.

View File

@ -3,84 +3,60 @@
"Package",
"Version",
"Deps",
"CI/Travis",
"CI",
"Coverage",
"Lead Maintainer"
],
"rows": [
"Libp2p",
["libp2p/interface-libp2p", "interface-libp2p"],
"libp2p",
["libp2p/js-libp2p", "libp2p"],
["libp2p/js-libp2p-daemon", "libp2p-daemon"],
["libp2p/js-libp2p-daemon-client", "libp2p-daemon-client"],
["libp2p/js-interfaces", "libp2p-interfaces"],
["libp2p/interop", "interop-libp2p"],
"Connection",
["libp2p/interface-connection", "interface-connection"],
"Transport",
["libp2p/interface-transport", "interface-transport"],
"transports",
["libp2p/js-libp2p-tcp", "libp2p-tcp"],
["libp2p/js-libp2p-udp", "libp2p-udp"],
["libp2p/js-libp2p-udt", "libp2p-udt"],
["libp2p/js-libp2p-utp", "libp2p-utp"],
["libp2p/js-libp2p-webrtc-direct", "libp2p-webrtc-direct"],
["libp2p/js-libp2p-webrtc-star", "libp2p-webrtc-star"],
["libp2p/js-libp2p-websockets", "libp2p-websockets"],
["libp2p/js-libp2p-websocket-star", "libp2p-websocket-star"],
["libp2p/js-libp2p-websocket-star-rendezvous", "libp2p-websocket-star-rendezvous"],
"Crypto Channels",
"secure channels",
["NodeFactoryIo/js-libp2p-noise", "libp2p-noise"],
["libp2p/js-libp2p-secio", "libp2p-secio"],
"Stream Muxers",
["libp2p/interface-stream-muxer", "interface-stream-muxer"],
"stream multiplexers",
["libp2p/js-libp2p-mplex", "libp2p-mplex"],
["libp2p/js-libp2p-spdy", "libp2p-spdy"],
"Discovery",
["libp2p/interface-peer-discovery", "interface-peer-discovery"],
"peer discovery",
["libp2p/js-libp2p-bootstrap", "libp2p-bootstrap"],
["libp2p/js-libp2p-kad-dht", "libp2p-kad-dht"],
["libp2p/js-libp2p-mdns", "libp2p-mdns"],
["libp2p/js-libp2p-rendezvous", "libp2p-rendezvous"],
["libp2p/js-libp2p-webrtc-star", "libp2p-webrtc-star"],
["libp2p/js-libp2p-websocket-star", "libp2p-websocket-star"],
["ChainSafe/discv5", "@chainsafe/discv5"],
"NAT Traversal",
["libp2p/js-libp2p-circuit", "libp2p-circuit"],
["libp2p/js-libp2p-nat-mngr", "libp2p-nat-mngr"],
"Data Types",
["libp2p/js-peer-book", "peer-book"],
["libp2p/js-peer-id", "peer-id"],
["libp2p/js-peer-info", "peer-info"],
"Content Routing",
["libp2p/interface-content-routing", "interface-content-routing"],
"content routing",
["libp2p/js-libp2p-delegated-content-routing", "libp2p-delegated-content-routing"],
["libp2p/js-libp2p-kad-dht", "libp2p-kad-dht"],
"Peer Routing",
["libp2p/interface-peer-routing", "interface-peer-routing"],
"peer routing",
["libp2p/js-libp2p-delegated-peer-routing", "libp2p-delegated-peer-routing"],
["libp2p/js-libp2p-kad-dht", "libp2p-kad-dht"],
"Record Store",
["libp2p/interface-record-store", "interface-record-store"],
["libp2p/js-libp2p-record", "libp2p-record"],
"Generics",
["libp2p/js-libp2p-connection-manager", "libp2p-connection-manager"],
"utilities",
["libp2p/js-libp2p-crypto", "libp2p-crypto"],
["libp2p/js-libp2p-crypto-secp256k1", "libp2p-crypto-secp256k1"],
["libp2p/js-libp2p-switch", "libp2p-switch"],
"Extensions",
"data types",
["libp2p/js-peer-id", "peer-id"],
"pubsub",
["libp2p/js-libp2p-pubsub", "libp2p-pubsub"],
["libp2p/js-libp2p-floodsub", "libp2p-floodsub"],
["libp2p/js-libp2p-identify", "libp2p-identify"],
["libp2p/js-libp2p-keychain", "libp2p-keychain"],
["libp2p/js-libp2p-ping", "libp2p-ping"],
["libp2p/js-libp2p-pnet", "libp2p-pnet"],
["ChainSafe/js-libp2p-gossipsub", "libp2p-gossipsub"],
"Utilities",
["libp2p/js-p2pcat", "p2pcat"]
"extensions",
["libp2p/js-libp2p-nat-mgnr", "libp2p-nat-mgnr"],
["libp2p/js-libp2p-utils", "libp2p-utils"]
]
}

View File

@ -1,7 +1,7 @@
{
"name": "libp2p",
"version": "0.25.0",
"description": "JavaScript base class for libp2p bundles",
"version": "0.28.7",
"description": "JavaScript implementation of libp2p, a modular peer to peer network stack",
"leadMaintainer": "Jacob Heun <jacobheun@gmail.com>",
"main": "src/index.js",
"files": [
@ -11,127 +11,158 @@
"scripts": {
"lint": "aegir lint",
"build": "aegir build",
"test": "aegir test -t node -t browser",
"test:node": "aegir test -t node",
"test": "npm run test:node && npm run test:browser",
"test:node": "aegir test -t node -f \"./test/**/*.{node,spec}.js\"",
"test:browser": "aegir test -t browser",
"release": "aegir release -t node -t browser",
"release-minor": "aegir release --type minor -t node -t browser",
"release-major": "aegir release --type major -t node -t browser"
"release-major": "aegir release --type major -t node -t browser",
"coverage": "nyc --reporter=text --reporter=lcov npm run test:node"
},
"repository": {
"type": "git",
"url": "https://github.com/libp2p/js-libp2p.git"
},
"keywords": [
"libp2p",
"network",
"p2p",
"peer",
"peer-to-peer",
"IPFS"
],
"engines": {
"node": ">=6.0.0",
"npm": ">=3.0.0"
},
"license": "MIT",
"bugs": {
"url": "https://github.com/libp2p/js-libp2p/issues"
},
"homepage": "https://github.com/libp2p/js-libp2p",
"browser": {
"./test/utils/bundle-nodejs": "./test/utils/bundle-browser"
"homepage": "https://libp2p.io",
"license": "MIT",
"engines": {
"node": ">=10.0.0",
"npm": ">=6.0.0"
},
"dependencies": {
"async": "^2.6.2",
"abort-controller": "^3.0.0",
"aggregate-error": "^3.0.1",
"any-signal": "^1.1.0",
"bignumber.js": "^9.0.0",
"class-is": "^1.1.0",
"debug": "^4.1.1",
"err-code": "^1.1.2",
"fsm-event": "^2.1.0",
"libp2p-connection-manager": "~0.1.0",
"libp2p-floodsub": "~0.15.8",
"libp2p-ping": "~0.8.5",
"libp2p-switch": "~0.42.9",
"libp2p-websockets": "~0.12.2",
"mafmt": "^6.0.7",
"multiaddr": "^6.0.6",
"once": "^1.4.0",
"peer-book": "~0.9.1",
"peer-id": "~0.12.2",
"peer-info": "~0.15.1",
"superstruct": "~0.6.0"
"err-code": "^2.0.0",
"events": "^3.1.0",
"hashlru": "^2.3.0",
"interface-datastore": "^1.0.4",
"ipfs-utils": "^2.2.0",
"it-all": "^1.0.1",
"it-buffer": "^0.1.2",
"it-handshake": "^1.0.1",
"it-length-prefixed": "^3.0.1",
"it-pipe": "^1.1.0",
"it-protocol-buffers": "^0.2.0",
"libp2p-crypto": "^0.17.6",
"libp2p-interfaces": "^0.3.1",
"libp2p-utils": "^0.1.2",
"mafmt": "^7.0.0",
"merge-options": "^2.0.0",
"moving-average": "^1.0.0",
"multiaddr": "^7.4.3",
"multistream-select": "^0.15.0",
"mutable-proxy": "^1.0.0",
"node-forge": "^0.9.1",
"p-any": "^3.0.0",
"p-fifo": "^1.0.0",
"p-settle": "^4.0.1",
"peer-id": "^0.13.11",
"protons": "^1.0.1",
"retimer": "^2.0.0",
"sanitize-filename": "^1.6.3",
"streaming-iterables": "^4.1.0",
"timeout-abort-controller": "^1.0.0",
"xsalsa20": "^1.0.2"
},
"devDependencies": {
"@nodeutils/defaults-deep": "^1.1.0",
"aegir": "^18.2.1",
"abortable-iterator": "^3.0.0",
"aegir": "^22.0.0",
"chai": "^4.2.0",
"chai-checkmark": "^1.0.1",
"cids": "~0.5.8",
"chai-as-promised": "^7.1.1",
"chai-bytes": "^0.1.2",
"chai-string": "^1.5.0",
"cids": "^0.8.0",
"datastore-fs": "^1.1.0",
"datastore-level": "^1.1.0",
"delay": "^4.3.0",
"dirty-chai": "^2.0.1",
"electron-webrtc": "~0.3.0",
"interface-datastore": "~0.6.0",
"libp2p-bootstrap": "~0.9.7",
"libp2p-circuit": "~0.3.6",
"libp2p-delegated-content-routing": "~0.2.2",
"libp2p-delegated-peer-routing": "~0.2.2",
"libp2p-kad-dht": "~0.14.8",
"libp2p-mdns": "~0.12.2",
"libp2p-mplex": "~0.8.4",
"libp2p-secio": "~0.11.1",
"libp2p-spdy": "~0.13.2",
"libp2p-tcp": "~0.13.0",
"libp2p-webrtc-star": "~0.15.8",
"libp2p-websocket-star": "~0.10.2",
"libp2p-websocket-star-rendezvous": "~0.3.0",
"lodash.times": "^4.3.2",
"nock": "^10.0.6",
"pull-goodbye": "0.0.2",
"pull-mplex": "~0.1.2",
"pull-serializer": "~0.3.2",
"pull-stream": "^3.6.9",
"sinon": "^7.2.7",
"wrtc": "~0.3.5"
"interop-libp2p": "^0.1.0",
"ipfs-http-client": "^44.0.0",
"it-concat": "^1.0.0",
"it-pair": "^1.0.0",
"it-pushable": "^1.4.0",
"level": "^6.0.1",
"libp2p-bootstrap": "^0.11.0",
"libp2p-delegated-content-routing": "^0.5.0",
"libp2p-delegated-peer-routing": "^0.5.0",
"libp2p-floodsub": "^0.21.0",
"libp2p-gossipsub": "^0.4.6",
"libp2p-kad-dht": "^0.19.1",
"libp2p-mdns": "^0.14.1",
"libp2p-mplex": "^0.9.5",
"libp2p-noise": "^1.1.1",
"libp2p-secio": "^0.12.4",
"libp2p-tcp": "^0.14.1",
"libp2p-webrtc-star": "^0.18.0",
"libp2p-websockets": "^0.13.1",
"multihashes": "^0.4.19",
"nock": "^12.0.3",
"p-defer": "^3.0.0",
"p-times": "^3.0.0",
"p-wait-for": "^3.1.0",
"promisify-es6": "^1.0.3",
"rimraf": "^3.0.2",
"sinon": "^9.0.2"
},
"contributors": [
"Aditya Bose <13054902+adbose@users.noreply.github.com>",
"Alan Shaw <alan.shaw@protocol.ai>",
"Alan Shaw <alan@tableflip.io>",
"Andrew Nesbitt <andrewnez@gmail.com>",
"Chris Bratlien <chrisbratlien@gmail.com>",
"Chris Dostert <chrisdostert@users.noreply.github.com>",
"Daijiro Wachi <daijiro.wachi@gmail.com>",
"David Dias <daviddias.p@gmail.com>",
"Diogo Silva <fsdiogo@gmail.com>",
"Dmitriy Ryajov <dryajov@gmail.com>",
"Elven <mon.samuel@qq.com>",
"Florian-Merle <florian.david.merle@gmail.com>",
"Friedel Ziegelmayer <dignifiedquire@gmail.com>",
"Giovanni T. Parra <fiatjaf@gmail.com>",
"Henrique Dias <hacdias@gmail.com>",
"Hugo Dias <mail@hugodias.me>",
"Hugo Dias <hugomrdias@gmail.com>",
"Irakli Gozalishvili <rfobic@gmail.com>",
"Jacob Heun <jacobheun@gmail.com>",
"Joel Gustafson <joelg@mit.edu>",
"John Rees <johnrees@users.noreply.github.com>",
"João Santos <joaosantos15@users.noreply.github.com>",
"Kevin Kwok <antimatter15@gmail.com>",
"Lars Gierth <lgierth@users.noreply.github.com>",
"Maciej Krüger <mkg20001@gmail.com>",
"Marcin Tojek <mtojek@users.noreply.github.com>",
"Nuno Nogueira <nunofmn@gmail.com>",
"Pedro Teixeira <pedro@protocol.ai>",
"Pedro Teixeira <i@pgte.me>",
"RasmusErik Voel Jensen <github@solsort.com>",
"Richard Littauer <richard.littauer@gmail.com>",
"Ryan Bell <ryan@piing.net>",
"Soeren <nikorpoulsen@gmail.com>",
"Sönke Hahn <soenkehahn@gmail.com>",
"Thomas Eizinger <thomas@eizinger.io>",
"Tiago Alves <alvesjtiago@gmail.com>",
"Vasco Santos <vasco.santos@ua.pt>",
"Vasco Santos <vasco.santos@moxy.studio>",
"Alan Shaw <alan@tableflip.io>",
"Cayman <caymannava@gmail.com>",
"Pedro Teixeira <i@pgte.me>",
"Friedel Ziegelmayer <dignifiedquire@gmail.com>",
"Alex Potsides <alex@achingbrain.net>",
"Maciej Krüger <mkg20001@gmail.com>",
"Hugo Dias <mail@hugodias.me>",
"Volker Mische <volker.mische@gmail.com>",
"dirkmc <dirkmdev@gmail.com>",
"Richard Littauer <richard.littauer@gmail.com>",
"Thomas Eizinger <thomas@eizinger.io>",
"Ryan Bell <ryan@piing.net>",
"Giovanni T. Parra <fiatjaf@gmail.com>",
"Andrew Nesbitt <andrewnez@gmail.com>",
"ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>",
"Elven <mon.samuel@qq.com>",
"Didrik Nordström <didrik.nordstrom@gmail.com>",
"Tiago Alves <alvesjtiago@gmail.com>",
"Yusef Napora <yusef@napora.org>",
"Zane Starr <zcstarr@gmail.com>",
"ebinks <elizabethjbinks@gmail.com>",
"greenkeeperio-bot <support@greenkeeper.io>",
"isan_rivkin <isanrivkin@gmail.com>",
"mayerwin <mayerwin@users.noreply.github.com>",
"ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>"
"robertkiel <robert.kiel@validitylabs.org>",
"RasmusErik Voel Jensen <github@solsort.com>",
"Bernd Strehl <bernd.strehl@gmail.com>",
"Chris Bratlien <chrisbratlien@gmail.com>",
"Daijiro Wachi <daijiro.wachi@gmail.com>",
"Diogo Silva <fsdiogo@gmail.com>",
"Dmitriy Ryajov <dryajov@gmail.com>",
"Fei Liu <liu.feiwood@gmail.com>",
"Florian-Merle <florian.david.merle@gmail.com>",
"Francis Gulotta <wizard@roborooter.com>",
"Henrique Dias <hacdias@gmail.com>",
"Irakli Gozalishvili <rfobic@gmail.com>",
"Joel Gustafson <joelg@mit.edu>",
"Julien Bouquillon <contact@revolunet.com>",
"Kevin Kwok <antimatter15@gmail.com>",
"Nuno Nogueira <nunofmn@gmail.com>",
"Soeren <nikorpoulsen@gmail.com>",
"Sönke Hahn <soenkehahn@gmail.com>"
]
}

View File

@ -1,3 +0,0 @@
# PDD Test Stories Implementation
> Implementation of the Compliance tests from https://github.com/libp2p/interop

View File

@ -1,20 +0,0 @@
{
"name": "pdd-impl",
"version": "0.0.0",
"description": "PDD Test Stories implementation",
"repository": {
"type": "git",
"url": " "
},
"keywords": [
"PDD",
"libp2p"
],
"author": "David Dias <daviddias@ipfs.io>",
"license": "MIT",
"dependencies": {
"libp2p": "file:./..",
"libp2p-interop": "github:libp2p/interop#master",
"tape": "^4.8.0"
}
}

View File

@ -1,104 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const WebSockets = require('libp2p-websockets')
const SECIO = require('libp2p-secio')
const Multiplex = require('libp2p-multiplex')
const Railing = require('libp2p-railing')
const MulticastDNS = require('libp2p-mdns')
const KadDHT = require('libp2p-kad-dht')
const PeerInfo = require('peer-info')
const pull = require('pull-stream')
const waterfall = require('async/waterfall')
const series = require('async/series')
const PeerA = require('libp2p-interop/peer-a.json')
const PeerB = require('libp2p-interop/peer-b.json')
class IPFSBundle extends libp2p {
constructor (peerInfo, options) {
options = Object.assign({ bootstrap: [] }, options)
const modules = {
transport: [
new TCP(),
new WebSockets()
],
connection: {
muxer: [
Multiplex
],
crypto: [
SECIO
]
},
discovery: [
new MulticastDNS(peerInfo, 'ipfs.local'),
new Railing(options.bootstrap)
],
DHT: KadDHT
}
super(modules, peerInfo, undefined, options)
}
}
test('story 1 - peerA', (t) => {
t.plan(10)
let node
waterfall([
(cb) => PeerInfo.create(PeerA, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10000')
node = new IPFSBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err, 'created Node successfully')
t.ok(node.isStarted(), 'PeerA is Running')
const peerBAddr = `/ip4/127.0.0.1/tcp/10001/p2p/${PeerB.id}`
node.handle('/time/1.0.0', (protocol, conn) => {
pull(
pull.values([Date.now().toString()]),
conn,
pull.onEnd((err) => {
t.ifErr(err)
t.pass('Sent time successfully')
})
)
})
series([
(cb) => setTimeout(cb, 5 * 1000), // time to run both scripts
(cb) => node.ping(peerBAddr, (err, p) => {
t.ifErr(err, 'initiated Ping to PeerB')
p.once('error', (err) => t.ifErr(err, 'Ping should not fail'))
p.once('ping', (time) => {
t.pass('ping PeerB successfully')
p.stop()
cb()
})
}),
(cb) => node.dial(peerBAddr, '/echo/1.0.0', (err, conn) => {
t.ifErr(err, 'dial successful')
const data = Buffer.from('Hey')
pull(
pull.values([data]),
conn,
pull.collect((err, values) => {
t.ifErr(err, 'Received echo back')
t.deepEqual(values[0], data)
cb()
})
)
}),
(cb) => setTimeout(cb, 2 * 1000) // time to both finish
], () => node.stop((err) => t.ifErr(err, 'PeerA has stopped')))
})
})

View File

@ -1,98 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const WebSockets = require('libp2p-websockets')
const SECIO = require('libp2p-secio')
const Multiplex = require('libp2p-multiplex')
const Railing = require('libp2p-railing')
const MulticastDNS = require('libp2p-mdns')
const KadDHT = require('libp2p-kad-dht')
const PeerInfo = require('peer-info')
const pull = require('pull-stream')
const waterfall = require('async/waterfall')
const series = require('async/series')
const PeerA = require('libp2p-interop/peer-a.json')
const PeerB = require('libp2p-interop/peer-b.json')
class IPFSBundle extends libp2p {
constructor (peerInfo, options) {
options = Object.assign({ bootstrap: [] }, options)
const modules = {
transport: [
new TCP(),
new WebSockets()
],
connection: {
muxer: [
Multiplex
],
crypto: [
SECIO
]
},
discovery: [
new MulticastDNS(peerInfo, 'ipfs.local'),
new Railing(options.bootstrap)
],
DHT: KadDHT
}
super(modules, peerInfo, undefined, options)
}
}
test('story 1 - peerA', (t) => {
t.plan(8)
let node
waterfall([
(cb) => PeerInfo.create(PeerB, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10001')
node = new IPFSBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err, 'created Node successfully')
t.ok(node.isStarted(), 'PeerB is Running')
const peerAAddr = `/ip4/127.0.0.1/tcp/10000/p2p/${PeerA.id}`
node.handle('/echo/1.0.0', (protocol, conn) => {
pull(
conn,
conn,
pull.onEnd((err) => t.ifErr(err, 'echo was successful'))
)
})
series([
(cb) => setTimeout(cb, 5 * 1000), // time to run both scripts
(cb) => node.ping(peerAAddr, (err, p) => {
t.ifErr(err, 'initiated Ping to PeerA')
p.once('error', (err) => t.ifErr(err, 'Ping should not fail'))
p.once('ping', (time) => {
t.pass('ping PeerA successfully')
p.stop()
cb()
})
}),
(cb) => node.dial(peerAAddr, '/time/1.0.0', (err, conn) => {
t.ifErr(err, 'dial successful')
pull(
pull.values([]),
conn,
pull.collect((err, values) => {
t.ifErr(err, 'Received time')
cb()
})
)
}),
(cb) => setTimeout(cb, 2 * 1000) // time to both finish
], () => node.stop((err) => t.ifErr(err, 'PeerB has stopped')))
})
})

View File

@ -1,54 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const pull = require('pull-stream')
const PeerA = require('libp2p-interop/peer-a.json')
const PeerB = require('libp2p-interop/peer-b.json')
class MyBundle extends libp2p {
constructor (peerInfo) {
const modules = {
transport: [new TCP()]
}
super(modules, peerInfo)
}
}
test('story 1 - peerA', (t) => {
t.plan(6)
let node
waterfall([
(cb) => PeerInfo.create(PeerA, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10000')
node = new MyBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/p2p/${PeerB.id}`
node.dial(PeerBAddr, '/echo/1.0.0', (err, conn) => {
t.ifErr(err, 'dial successful')
const data = Buffer.from('Heey')
pull(
pull.values([data]),
conn,
pull.collect((err, values) => {
t.ifErr(err, 'Received echo back')
t.deepEqual(values[0], data)
node.stop((err) => t.ifErr(err, 'PeerA has stopped'))
})
)
})
})
})

View File

@ -1,49 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const pull = require('pull-stream')
const PeerB = require('libp2p-interop/peer-b.json')
class MyBundle extends libp2p {
constructor (peerInfo) {
const modules = {
transport: [new TCP()]
}
super(modules, peerInfo)
}
}
test('story 1 - peerB', (t) => {
t.plan(5)
let node
waterfall([
(cb) => PeerInfo.create(PeerB, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10001')
node = new MyBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err)
t.ok(node.isStarted(), 'PeerB is running')
node.handle('/echo/1.0.0', (protocol, conn) => {
pull(
conn,
conn,
pull.onEnd((err) => {
t.ifErr(err)
t.pass('Received End of Connection')
node.stop((err) => {
t.ifErr(err, 'PeerB has stopped')
})
})
)
})
})
})

View File

@ -1,54 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const pull = require('pull-stream')
const PeerA = require('libp2p-interop/peer-a.json')
const PeerB = require('libp2p-interop/peer-b.json')
class MyBundle extends libp2p {
constructor (peerInfo) {
const modules = {
transport: [new WebSockets()]
}
super(modules, peerInfo)
}
}
test('story 2 - peerA', (t) => {
t.plan(6)
let node
waterfall([
(cb) => PeerInfo.create(PeerA, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10000/ws')
node = new MyBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/p2p/${PeerB.id}`
node.dial(PeerBAddr, '/echo/1.0.0', (err, conn) => {
t.ifErr(err, 'dial successful')
const data = Buffer.from('Heey')
pull(
pull.values([data]),
conn,
pull.collect((err, values) => {
t.ifErr(err, 'Received echo back')
t.deepEqual(values[0], data)
node.stop((err) => t.ifErr(err, 'PeerA has stopped'))
})
)
})
})
})

View File

@ -1,49 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const pull = require('pull-stream')
const PeerB = require('libp2p-interop/peer-b.json')
class MyBundle extends libp2p {
constructor (peerInfo) {
const modules = {
transport: [new WebSockets()]
}
super(modules, peerInfo)
}
}
test('story 2 - peerB', (t) => {
t.plan(5)
let node
waterfall([
(cb) => PeerInfo.create(PeerB, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10001/ws')
node = new MyBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err)
t.ok(node.isStarted(), 'PeerB is running')
node.handle('/echo/1.0.0', (protocol, conn) => {
pull(
conn,
pull.through(v => v, err => {
t.ifErr(err)
t.pass('Received End of Connection')
node.stop((err) => {
t.ifErr(err, 'PeerB has stopped')
})
}),
conn
)
})
})
})

View File

@ -1,42 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const PeerA = require('libp2p-interop/peer-a.json')
const PeerB = require('libp2p-interop/peer-b.json')
class MyBundle extends libp2p {
constructor (peerInfo) {
const modules = {
transport: [new TCP()]
}
super(modules, peerInfo)
}
}
test('story 3 - peerA', (t) => {
t.plan(4)
let node
waterfall([
(cb) => PeerInfo.create(PeerA, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10000')
node = new MyBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/ws/p2p/${PeerB.id}`
setTimeout(() => node.dial(PeerBAddr, '/echo/1.0.0', (err, conn) => {
t.ok(err, 'dial failed')
node.stop((err) => t.ifErr(err, 'PeerA has stopped'))
}), 1000)
})
})

View File

@ -1,42 +0,0 @@
'use strict'
const test = require('tape')
const libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const PeerA = require('libp2p-interop/peer-a.json')
const PeerB = require('libp2p-interop/peer-b.json')
class MyBundle extends libp2p {
constructor (peerInfo) {
const modules = {
transport: [new WebSockets()]
}
super(modules, peerInfo)
}
}
test('story 3 - peerB', (t) => {
t.plan(4)
let node
waterfall([
(cb) => PeerInfo.create(PeerB, cb),
(peerInfo, cb) => {
peerInfo.multiaddrs.add('/ip4/127.0.0.1/tcp/10000/ws')
node = new MyBundle(peerInfo)
node.start(cb)
}
], (err) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerAAddr = `/ip4/127.0.0.1/tcp/10000/ws/p2p/${PeerA.id}`
setTimeout(() => node.dial(PeerAAddr, '/echo/1.0.0', (err, conn) => {
t.ok(err, 'dial failed')
node.stop((err) => t.ifErr(err, 'PeerA has stopped'))
}), 1000)
})
})

View File

@ -0,0 +1,49 @@
# Address Manager
The Address manager is responsible for keeping an updated register of the peer's addresses. It includes 3 different types of Addresses: `Listen Addresses`, `Announce Addresses` and `No Announce Addresses`.
These Addresses should be specified in your libp2p [configuration](../../doc/CONFIGURATION.md) when you create your node.
## Listen Addresses
A libp2p node should have a set of listen addresses, which will be used by libp2p underlying transports to listen for dials from other nodes in the network.
Before a libp2p node starts, its configured listen addresses will be passed to the AddressManager, so that during startup the libp2p transports can use them to listen for connections. Accordingly, listen addresses should be specified through the libp2p configuration, in order to have the `AddressManager` created with them.
It is important pointing out that libp2p accepts ephemeral listening addresses. In this context, the provided listen addresses might not be exactly the same as the ones used by the transports. For example TCP may replace `/ip4/0.0.0.0/tcp/0` with something like `/ip4/127.0.0.1/tcp/8989`. As a consequence, libp2p should take into account this when determining its advertised addresses.
## Announce Addresses
In some scenarios, a libp2p node will need to announce addresses that it is not listening on. In other words, Announce Addresses are an amendment to the Listen Addresses that aim to enable other nodes to achieve connectivity to this node.
Scenarios for Announce Addresses include:
- when you setup a libp2p node in your private network at home, but you need to announce your public IP Address to the outside world;
- when you want to announce a DNS address, which maps to your public IP Address.
## No Announce Addresses
While we need to add Announce Addresses to enable peers' connectivity, we should also avoid announcing addresses that will not be reachable. No Announce Addresses should be specified so that they are filtered from the advertised multiaddrs.
As stated in the Listen Addresses section, Listen Addresses might be modified by libp2p transports after the successfully bind to those addresses. Libp2p should also take these changes into account so that they can be matched when No Announce Addresses are being filtered out of the advertised multiaddrs.
## Implementation
When a libp2p node is created, the Address Manager will be populated from the provided addresses through the libp2p configuration. Once the node is started, the Transport Manager component will gather the listen addresses from the Address Manager, so that the libp2p transports can attempt to bind to them.
Libp2p will use the the Address Manager as the source of truth when advertising the peers addresses. After all transports are ready, other libp2p components/subsystems will kickoff, namely the Identify Service and the DHT. Both of them will announce the node addresses to the other peers in the network. The announce and noAnnounce addresses will have an important role here and will be gathered by libp2p to compute its current addresses to advertise everytime it is needed.
## Future Considerations
### Dynamic address modifications
In a future iteration, we can enable these addresses to be modified in runtime. For this, the Address Manager should be responsible for notifying interested subsystems of these changes, through an Event Emitter.
#### Modify Listen Addresses
While adding new addresses to listen on runtime should be trivial, removing a listen address might have bad implications for the node, since all the connections using that listen address will be closed. However, libp2p should provide a mechanism for both adding and removing listen addresses in the future.
Every time a new listen address is added, the Address Manager should emit an event with the new multiaddrs to listen. The Transport Manager should listen to this events and act accordingly.
#### Modify Announce Addresses
When the announce addresses are modified, the Address Manager should emit an event so that other subsystems can act accordingly. For example, libp2p identify service should use the libp2p push protocol to inform other peers about these changes.

View File

@ -0,0 +1,55 @@
'use strict'
const debug = require('debug')
const log = debug('libp2p:addresses')
log.error = debug('libp2p:addresses:error')
const multiaddr = require('multiaddr')
/**
* Responsible for managing this peers addresses.
* Peers can specify their listen, announce and noAnnounce addresses.
* The listen addresses will be used by the libp2p transports to listen for new connections,
* while the announce an noAnnounce addresses will be combined with the listen addresses for
* address adverstising to other peers in the network.
*/
class AddressManager {
/**
* @constructor
* @param {object} [options]
* @param {Array<string>} [options.listen = []] list of multiaddrs string representation to listen.
* @param {Array<string>} [options.announce = []] list of multiaddrs string representation to announce.
* @param {Array<string>} [options.noAnnounce = []] list of multiaddrs string representation to not announce.
*/
constructor ({ listen = [], announce = [], noAnnounce = [] } = {}) {
this.listen = new Set(listen)
this.announce = new Set(announce)
this.noAnnounce = new Set(noAnnounce)
}
/**
* Get peer listen multiaddrs.
* @return {Array<Multiaddr>}
*/
getListenAddrs () {
return Array.from(this.listen).map((a) => multiaddr(a))
}
/**
* Get peer announcing multiaddrs.
* @return {Array<Multiaddr>}
*/
getAnnounceAddrs () {
return Array.from(this.announce).map((a) => multiaddr(a))
}
/**
* Get peer noAnnouncing multiaddrs.
* @return {Array<Multiaddr>}
*/
getNoAnnounceAddrs () {
return Array.from(this.noAnnounce).map((a) => multiaddr(a))
}
}
module.exports = AddressManager

View File

@ -0,0 +1,128 @@
EDIT: This document is outdated and here only for historical purposes
NOTE: This document is structured in an `if-then/else[if]-then` manner, each line is a precondition for following lines with a higher number of indentation
Example:
- if there are apples
- eat them
- if not, check for pears
- then eat them
- if not, check for cherries
- then eat them
Or,
- if there are apples
- eat them
- if not
- check for pears
- then eat them
- if not
- check for cherries
- then eat them
In order to minimize nesting, the first example is preferred
# Relay flow
## Relay transport (dialer/listener)
- ### Dial over a relay
- See if there is a relay that's already connected to the destination peer, if not
- Ask all the peer's known relays to dial the destination peer until an active relay (one that can dial on behalf of other peers), or a relay that may have recently acquired a connection to the destination peer is successful.
- If successful
- Write the `/ipfs/relay/circuit/1.0.0` header to the relay, followed by the destination address
- e.g. `/ipfs/relay/circuit/1.0.0\n/p2p-circuit/ipfs/QmDest`.
- If no relays could connect, fail the same way a regular transport would
- Once the connection has been established, the swarm should treat it as a regular connection,
- i.e. muxing, encrypt, etc should all be performed on the relayed connection
- ### Listen for relayed connections
- Peer mounts the `/ipfs/relay/circuit/1.0.0` proto and listens for relayed connections
- A connection arrives
- read the address of the source peer from the incoming connection stream
- if valid, create a PeerInfo object for that peer and add the incoming address to its multiaddresses list
- pass the connection to `protocolMuxer(swarm.protocols, conn)` to have it go through the regular muxing/encryption flow
- ### Relay discovery and static relay addresses in swarm config
- #### Relay address in swarm config
- A peer has relay addresses in its swarm config section
- On node startup, connect to the relays in swarm config
- if successful add address to swarms PeerInfo's multiaddresses
- `identify` should take care of announcing that the peer is reachable over the listed relays
- #### Passive relay discovery
- A peer that can dial over `/ipfs/relay/circuit/1.0.0` listens for the `peer-mux-established` swarm event, every time a new muxed connection arrives, it checks if the incoming peer is a relay. (How would this work? Some way of discovering if its a relay is required.)
- *Useful in cases when the peer/node doesn't know of any relays on startup and also, to learn of as many additional relays in the network as possible*
- *Useful during startup, when connecting to bootstrap nodes. It allows us to implicitly learn if its a relay without having to explicitly add `/p2p-circuit` addresses to the bootstrap list*
- *Also useful if the relay communicates its capabilities upon connecting to it, as to avoid additional unnecessary requests/queries. I.e. if it supports weather its able to forward connections and weather it supports the `ls` or other commands.*
- *Should it be possible to disable passive relay discovery?*
- This could be useful when the peer wants to be reachable **only** over the listed relays
- If the incoming peer is a relay, send an `ls` and record its peers
## Relay Nodes
- ### Passive relay node
- *A passive relay does not explicitly dial into any requested peer, only those that it's swarm already has connections to.*
- When the relay gets a request, read the the destination peer's multiaddr from the connection stream and if its a valid address and peer id
- check its swarm's peerbook(?) see if its a known peer, if it is
- use the swarms existing connection and
- send the multistream header and the source peer address to the dest peer
- e.g. `/ipfs/relay/circuit/1.0.0\n/p2p-circuit/ipfs/QmSource`
- circuit the source and dest connections
- if couldn't dial, or the connection/stream to the dest peer closed prematurelly
- close the src stream
- ### Active relay node
- *An active relay node can dial other peers even if its swarm doesnt know about those peers*
- When the relay gets a request, read the the destination peer's multiaddr from the connection stream and if its a valid address and peer id
- use the swarm to dial to the dest node
- send the multistream header and the source peer address to the dest peer
- e.g. `/ipfs/relay/circuit/1.0.0\n/p2p-circuit/ipfs/QmSource`
- circuit the source and dest connections
- if couldn't dial, or the connection/stream to the dest peer closed prematurely
- close the src stream
- ### `ls` command
- *A relay node can allow the peers known to it's swarm to be listed*
- *this should be possible to enable/disable from the config*
- when a relay gets the `ls` request
- if enabled, get its swarm's peerbook's known peers and return their ids and multiaddrs
- e.g `[{id: /ipfs/QmPeerId, addrs: ['ma1', 'ma2', 'ma3']}, ...]`
- if disabled, respond with `na`
## Relay Implementation notes
- ### Relay transport
- Currently I've implemented the dialer and listener parts of the relay as a transport, meaning that it *tries* to implement the `interface-transport` interface as closely as possible. This seems to work pretty well and it's makes the dialer/listener parts really easy to plug in into the swarm. I think this is the cleanest solution.
- ### `circuit-relay`
- This is implemented as a separate piece (not a transport), and it can be enabled/disabled with a config. The transport listener however, will do the initial parsing of the incoming header and figure out weather it's a connection that's needs to be handled by the circuit-relay, or its a connection that is being relayed from a circuit-relay.
## Relay swarm integration
- The relay transport is mounted explicitly by calling the `swarm.connection.relay(config.relay)` from libp2p
- Swarm will register the dialer and listener using the swarm `transport.add` and `transport.listen` methods
- ### Listener
- the listener registers itself as a multistream handler on the `/ipfs/relay/circuit/1.0.0` proto
- if `circuit-relay` is enabled, the listener will delegate connections to it if appropriate
- when the listener receives a connection, it will read the multiaddr and determine if its a connection that needs to be relayed, or its a connection that is being relayed
- ### Dialer
- When the swarm attempts to dial to a peer, it will filter the protocols that the peer can be reached on
- *The relay will be used in two cases*
- If the peer has an explicit relay address that it can be reached on
- no other transport is available
- The relay will attempt to dial the peer over that relay
- If no explicit relay address is provided
- no other transport is available
- A generic circuit address will be added to the peers multiaddr list
- i.e. `/p2p-circuit/ipfs/QmDest`
- If another transport is available, then use that instead of the relay

106
src/circuit/README.md Normal file
View File

@ -0,0 +1,106 @@
# js-libp2p-circuit
> Node.js implementation of the Circuit module that libp2p uses, which implements the [interface-connection](https://github.com/libp2p/js-libp2p-interfaces/tree/master/src/connection) interface for dial/listen.
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-circuit.
`libp2p-circuit` implements the circuit-relay mechanism that allows nodes that don't speak the same protocol to communicate using a third _relay_ node. You can read more about this in its [spec](https://github.com/libp2p/specs/tree/master/relay).
## Table of Contents
- [js-libp2p-circuit](#js-libp2p-circuit)
- [Why?](#why)
- [libp2p-circuit and IPFS](#libp2p-circuit-and-ipfs)
- [Table of Contents](#table-of-contents)
- [Usage](#usage)
- [API](#api)
- [Implementation rational](#implementation-rational)
### Why?
`circuit-relaying` uses additional nodes in order to transfer traffic between two otherwise unreachable nodes. This allows nodes that don't speak the same protocols or are running in limited environments, e.g. browsers and IoT devices, to communicate, which would otherwise be impossible given the fact that for example browsers don't have any socket support and as such cannot be directly dialed.
The use of circuit-relaying is not limited to routing traffic between browser nodes, other uses include:
- routing traffic between private nets and circumventing NAT layers
- route mangling for better privacy (matreshka/shallot dialing).
It's also possible to use it for clients that implement exotic transports such as devices that only have bluetooth radios to be reachable over bluetooth enabled relays and become full p2p nodes.
### libp2p-circuit and IPFS
Prior to `libp2p-circuit` there was a rift in the IPFS network, were IPFS nodes could only access content from nodes that speak the same protocol, for example TCP only nodes could only dial to other TCP only nodes, same for any other protocol combination. In practice, this limitation was most visible in JS-IPFS browser nodes, since they can only dial out but not be dialed in over WebRTC or WebSockets, hence any content that the browser node held was not reachable by the rest of the network even through it was announced on the DHT. Non browser IPFS nodes would usually speak more than one protocol such as TCP, WebSockets and/or WebRTC, this made the problem less severe outside of the browser. `libp2p-circuit` solves this problem completely, as long as there are `relay nodes` capable of routing traffic between those nodes their content should be available to the rest of the IPFS network.
## Usage
Libp2p circuit configuration can be seen at [Setup with Relay](../../doc/CONFIGURATION.md#setup-with-relay).
Once you have a circuit relay node running, you can configure other nodes to use it as a relay as follows:
```js
const multiaddr = require('multiaddr')
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const relayAddr = ...
const node = await Libp2p.create({
addresses: {
listen: [multiaddr(`${relayAddr}/p2p-circuit`)]
},
modules: {
transport: [TCP],
streamMuxer: [MPLEX],
connEncryption: [SECIO]
},
config: {
relay: { // Circuit Relay options (this config is part of libp2p core configurations)
enabled: true // Allows you to dial and accept relayed connections. Does not make you a relay.
}
}
})
```
## API
[![](https://raw.githubusercontent.com/libp2p/interface-transport/master/img/badge.png)](https://github.com/libp2p/interface-transport)
`libp2p-circuit` accepts Circuit addresses for both IPFS and non IPFS encapsulated addresses, i.e:
`/p2p-circuit/ip4/127.0.0.1/tcp/4001/p2p/QmHash`
Both for dialing and listening.
### Implementation rational
This module is not a transport, however it implements `interface-transport` interface in order to allow circuit to be plugged with `libp2p`. The rational behind it is that, `libp2p-circuit` has a dial and listen flow, which fits nicely with other transports, moreover, it requires the _raw_ connection to be encrypted and muxed just as a regular transport's connection does. All in all, `interface-transport` ended up being the correct level of abstraction for circuit, as well as allowed us to reuse existing integration points in `libp2p` and `libp2p` without adding any ad-hoc logic. All parts of `interface-transport` are used, including `.getAddr` which returns a list of `/p2p-circuit` addresses that circuit is currently listening.
```
libp2p libp2p-circuit (transport)
+-------------------------------------------------+ +--------------------------+
| +---------------------------------+ | | |
| | | | | +------------------+ |
| | | | circuit-relay listens for the HOP | | | |
| | libp2p <------------------------------------------------| circuit-relay | |
| | | | message to handle incomming relay | | | |
| | | | requests from other nodes | +------------------+ |
| +---------------------------------+ | | |
| ^ ^ ^ ^ ^ ^ | | +------------------+ |
| | | | | | | | | | +-------------+ | |
| | | | | | | | dialer uses libp2p to dial | | | | | |
| | | | +----------------------------------------------------------------------> dialer | | |
| | | transports | | to a circuit-relay node using the | | | | | |
| | | | | | | HOP message | | +-------------+ | |
| | | | | | | | | | |
| v v | v v | | | | |
|+------------------|----------------------------+| | | +-------------+ | |
|| | | | | || | | | | | |
||libp2p-tcp |libp2p-ws | .... |libp2p-circuit || listener handles STOP messages from| | | listener | | |
|| | +--------------------------------------------------------------------------> | | |
|| | | |plugs in just || circuit-relay nodes | | +-------------+ | |
|| | | |as any other || | | | |
|| | | |transport || | +------------------+ |
|+-----------------------------------------------+| | |
+-------------------------------------------------+ +--------------------------+
```

135
src/circuit/circuit/hop.js Normal file
View File

@ -0,0 +1,135 @@
'use strict'
const debug = require('debug')
const log = debug('libp2p:circuit:hop')
log.error = debug('libp2p:circuit:hop:error')
const PeerId = require('peer-id')
const { validateAddrs } = require('./utils')
const StreamHandler = require('./stream-handler')
const { CircuitRelay: CircuitPB } = require('../protocol')
const pipe = require('it-pipe')
const errCode = require('err-code')
const { codes: Errors } = require('../../errors')
const { stop } = require('./stop')
const multicodec = require('./../multicodec')
module.exports.handleHop = async function handleHop ({
connection,
request,
streamHandler,
circuit
}) {
// Ensure hop is enabled
if (!circuit._options.hop.enabled) {
log('HOP request received but we are not acting as a relay')
return streamHandler.end({
type: CircuitPB.Type.STATUS,
code: CircuitPB.Status.HOP_CANT_SPEAK_RELAY
})
}
// Validate the HOP request has the required input
try {
validateAddrs(request, streamHandler)
} catch (err) {
return log.error('invalid hop request via peer %s', connection.remotePeer.toB58String(), err)
}
// Get the connection to the destination (stop) peer
const destinationPeer = new PeerId(request.dstPeer.id)
const destinationConnection = circuit._connectionManager.get(destinationPeer)
if (!destinationConnection && !circuit._options.hop.active) {
log('HOP request received but we are not connected to the destination peer')
return streamHandler.end({
type: CircuitPB.Type.STATUS,
code: CircuitPB.Status.HOP_NO_CONN_TO_DST
})
}
// TODO: Handle being an active relay
// Handle the incoming HOP request by performing a STOP request
const stopRequest = {
type: CircuitPB.Type.STOP,
dstPeer: request.dstPeer,
srcPeer: request.srcPeer
}
let destinationStream
try {
destinationStream = await stop({
connection: destinationConnection,
request: stopRequest,
circuit
})
} catch (err) {
return log.error(err)
}
log('hop request from %s is valid', connection.remotePeer.toB58String())
streamHandler.write({
type: CircuitPB.Type.STATUS,
code: CircuitPB.Status.SUCCESS
})
const sourceStream = streamHandler.rest()
// Short circuit the two streams to create the relayed connection
return pipe(
sourceStream,
destinationStream,
sourceStream
)
}
/**
* Performs a HOP request to a relay peer, to request a connection to another
* peer. A new, virtual, connection will be created between the two via the relay.
*
* @param {object} options
* @param {Connection} options.connection Connection to the relay
* @param {*} options.request
* @param {Circuit} options.circuit
* @returns {Promise<Connection>}
*/
module.exports.hop = async function hop ({
connection,
request
}) {
// Create a new stream to the relay
const { stream } = await connection.newStream([multicodec.relay])
// Send the HOP request
const streamHandler = new StreamHandler({ stream })
streamHandler.write(request)
const response = await streamHandler.read()
if (response.code === CircuitPB.Status.SUCCESS) {
log('hop request was successful')
return streamHandler.rest()
}
log('hop request failed with code %d, closing stream', response.code)
streamHandler.close()
throw errCode(new Error(`HOP request failed with code ${response.code}`), Errors.ERR_HOP_REQUEST_FAILED)
}
/**
* Creates an unencoded CAN_HOP response based on the Circuits configuration
* @private
*/
module.exports.handleCanHop = function handleCanHop ({
connection,
streamHandler,
circuit
}) {
const canHop = circuit._options.hop.enabled
log('can hop (%s) request from %s', canHop, connection.remotePeer.toB58String())
streamHandler.end({
type: CircuitPB.Type.STATUS,
code: canHop ? CircuitPB.Status.SUCCESS : CircuitPB.Status.HOP_CANT_SPEAK_RELAY
})
}

View File

@ -0,0 +1,69 @@
'use strict'
const { CircuitRelay: CircuitPB } = require('../protocol')
const multicodec = require('../multicodec')
const StreamHandler = require('./stream-handler')
const { validateAddrs } = require('./utils')
const debug = require('debug')
const log = debug('libp2p:circuit:stop')
log.error = debug('libp2p:circuit:stop:error')
/**
* Handles incoming STOP requests
*
* @private
* @param {*} options
* @param {Connection} options.connection
* @param {*} options.request The CircuitRelay protobuf request (unencoded)
* @param {StreamHandler} options.streamHandler
* @returns {Promise<*>} Resolves a duplex iterable
*/
module.exports.handleStop = function handleStop ({
connection,
request,
streamHandler
}) {
// Validate the STOP request has the required input
try {
validateAddrs(request, streamHandler)
} catch (err) {
return log.error('invalid stop request via peer %s', connection.remotePeer.toB58String(), err)
}
// The request is valid
log('stop request is valid')
streamHandler.write({
type: CircuitPB.Type.STATUS,
code: CircuitPB.Status.SUCCESS
})
return streamHandler.rest()
}
/**
* Creates a STOP request
* @private
* @param {*} options
* @param {Connection} options.connection
* @param {*} options.request The CircuitRelay protobuf request (unencoded)
* @returns {Promise<*>} Resolves a duplex iterable
*/
module.exports.stop = async function stop ({
connection,
request
}) {
const { stream } = await connection.newStream([multicodec.relay])
log('starting stop request to %s', connection.remotePeer.toB58String())
const streamHandler = new StreamHandler({ stream })
streamHandler.write(request)
const response = await streamHandler.read()
if (response.code === CircuitPB.Status.SUCCESS) {
log('stop request to %s was successful', connection.remotePeer.toB58String())
return streamHandler.rest()
}
log('stop request failed with code %d', response.code)
streamHandler.close()
}

View File

@ -0,0 +1,80 @@
'use strict'
const lp = require('it-length-prefixed')
const handshake = require('it-handshake')
const { CircuitRelay: CircuitPB } = require('../protocol')
const debug = require('debug')
const log = debug('libp2p:circuit:stream-handler')
log.error = debug('libp2p:circuit:stream-handler:error')
class StreamHandler {
/**
* Create a stream handler for connection
*
* @param {object} options
* @param {*} options.stream - A duplex iterable
* @param {Number} options.maxLength - max bytes length of message
*/
constructor ({ stream, maxLength = 4096 }) {
this.stream = stream
this.shake = handshake(this.stream)
this.decoder = lp.decode.fromReader(this.shake.reader, { maxDataLength: maxLength })
}
/**
* Read and decode message
* @async
* @returns {void}
*/
async read () {
const msg = await this.decoder.next()
if (msg.value) {
const value = CircuitPB.decode(msg.value.slice())
log('read message type', value.type)
return value
}
log('read received no value, closing stream')
// End the stream, we didn't get data
this.close()
}
/**
* Encode and write array of buffers
*
* @param {*} msg An unencoded CircuitRelay protobuf message
*/
write (msg) {
log('write message type %s', msg.type)
this.shake.write(lp.encode.single(CircuitPB.encode(msg)))
}
/**
* Return the handshake rest stream and invalidate handler
*
* @return {*} A duplex iterable
*/
rest () {
this.shake.rest()
return this.shake.stream
}
end (msg) {
this.write(msg)
this.close()
}
/**
* Close the stream
*
* @returns {void}
*/
close () {
log('closing the stream')
this.rest().sink([])
}
}
module.exports = StreamHandler

View File

@ -0,0 +1,51 @@
'use strict'
const multiaddr = require('multiaddr')
const { CircuitRelay } = require('../protocol')
/**
* Write a response
*
* @param {StreamHandler} streamHandler
* @param {CircuitRelay.Status} status
*/
function writeResponse (streamHandler, status) {
streamHandler.write({
type: CircuitRelay.Type.STATUS,
code: status
})
}
/**
* Validate incomming HOP/STOP message
*
* @param {*} msg A CircuitRelay unencoded protobuf message
* @param {StreamHandler} streamHandler
*/
function validateAddrs (msg, streamHandler) {
try {
msg.dstPeer.addrs.forEach((addr) => {
return multiaddr(addr)
})
} catch (err) {
writeResponse(streamHandler, msg.type === CircuitRelay.Type.HOP
? CircuitRelay.Status.HOP_DST_MULTIADDR_INVALID
: CircuitRelay.Status.STOP_DST_MULTIADDR_INVALID)
throw err
}
try {
msg.srcPeer.addrs.forEach((addr) => {
return multiaddr(addr)
})
} catch (err) {
writeResponse(streamHandler, msg.type === CircuitRelay.Type.HOP
? CircuitRelay.Status.HOP_SRC_MULTIADDR_INVALID
: CircuitRelay.Status.STOP_SRC_MULTIADDR_INVALID)
throw err
}
}
module.exports = {
validateAddrs
}

187
src/circuit/index.js Normal file
View File

@ -0,0 +1,187 @@
'use strict'
const mafmt = require('mafmt')
const multiaddr = require('multiaddr')
const PeerId = require('peer-id')
const withIs = require('class-is')
const { CircuitRelay: CircuitPB } = require('./protocol')
const debug = require('debug')
const log = debug('libp2p:circuit')
log.error = debug('libp2p:circuit:error')
const toConnection = require('libp2p-utils/src/stream-to-ma-conn')
const { relay: multicodec } = require('./multicodec')
const createListener = require('./listener')
const { handleCanHop, handleHop, hop } = require('./circuit/hop')
const { handleStop } = require('./circuit/stop')
const StreamHandler = require('./circuit/stream-handler')
class Circuit {
/**
* Creates an instance of Circuit.
*
* @constructor
* @param {object} options
* @param {Libp2p} options.libp2p
* @param {Upgrader} options.upgrader
*/
constructor ({ libp2p, upgrader }) {
this._dialer = libp2p.dialer
this._registrar = libp2p.registrar
this._connectionManager = libp2p.connectionManager
this._upgrader = upgrader
this._options = libp2p._config.relay
this._libp2p = libp2p
this.peerId = libp2p.peerId
this._registrar.handle(multicodec, this._onProtocol.bind(this))
}
async _onProtocol ({ connection, stream, protocol }) {
const streamHandler = new StreamHandler({ stream })
const request = await streamHandler.read()
const circuit = this
let virtualConnection
switch (request.type) {
case CircuitPB.Type.CAN_HOP: {
log('received CAN_HOP request from %s', connection.remotePeer.toB58String())
await handleCanHop({ circuit, connection, streamHandler })
break
}
case CircuitPB.Type.HOP: {
log('received HOP request from %s', connection.remotePeer.toB58String())
virtualConnection = await handleHop({
connection,
request,
streamHandler,
circuit
})
break
}
case CircuitPB.Type.STOP: {
log('received STOP request from %s', connection.remotePeer.toB58String())
virtualConnection = await handleStop({
connection,
request,
streamHandler,
circuit
})
break
}
default: {
log('Request of type %s not supported', request.type)
}
}
if (virtualConnection) {
const remoteAddr = multiaddr(request.dstPeer.addrs[0])
const localAddr = multiaddr(request.srcPeer.addrs[0])
const maConn = toConnection({
stream: virtualConnection,
remoteAddr,
localAddr
})
const type = CircuitPB.Type === CircuitPB.Type.HOP ? 'relay' : 'inbound'
log('new %s connection %s', type, maConn.remoteAddr)
const conn = await this._upgrader.upgradeInbound(maConn)
log('%s connection %s upgraded', type, maConn.remoteAddr)
this.handler && this.handler(conn)
}
}
/**
* Dial a peer over a relay
*
* @param {multiaddr} ma - the multiaddr of the peer to dial
* @param {Object} options - dial options
* @param {AbortSignal} [options.signal] - An optional abort signal
* @returns {Connection} - the connection
*/
async dial (ma, options) {
// Check the multiaddr to see if it contains a relay and a destination peer
const addrs = ma.toString().split('/p2p-circuit')
const relayAddr = multiaddr(addrs[0])
const destinationAddr = multiaddr(addrs[addrs.length - 1])
const relayPeer = PeerId.createFromCID(relayAddr.getPeerId())
const destinationPeer = PeerId.createFromCID(destinationAddr.getPeerId())
let disconnectOnFailure = false
let relayConnection = this._connectionManager.get(relayPeer)
if (!relayConnection) {
relayConnection = await this._dialer.connectToPeer(relayAddr, options)
disconnectOnFailure = true
}
try {
const virtualConnection = await hop({
connection: relayConnection,
circuit: this,
request: {
type: CircuitPB.Type.HOP,
srcPeer: {
id: this.peerId.toBytes(),
addrs: this._libp2p.multiaddrs.map(addr => addr.buffer)
},
dstPeer: {
id: destinationPeer.toBytes(),
addrs: [multiaddr(destinationAddr).buffer]
}
}
})
const localAddr = relayAddr.encapsulate(`/p2p-circuit/p2p/${this.peerId.toB58String()}`)
const maConn = toConnection({
stream: virtualConnection,
remoteAddr: ma,
localAddr
})
log('new outbound connection %s', maConn.remoteAddr)
return this._upgrader.upgradeOutbound(maConn)
} catch (err) {
log.error('Circuit relay dial failed', err)
disconnectOnFailure && await relayConnection.close()
throw err
}
}
/**
* Create a listener
*
* @param {any} options
* @param {Function} handler
* @return {listener}
*/
createListener (options, handler) {
if (typeof options === 'function') {
handler = options
options = {}
}
// Called on successful HOP and STOP requests
this.handler = handler
return createListener(this, options)
}
/**
* Filter check for all Multiaddrs that this transport can dial on
*
* @param {Array<Multiaddr>} multiaddrs
* @returns {Array<Multiaddr>}
*/
filter (multiaddrs) {
multiaddrs = Array.isArray(multiaddrs) ? multiaddrs : [multiaddrs]
return multiaddrs.filter((ma) => {
return mafmt.Circuit.matches(ma)
})
}
}
/**
* @type {Circuit}
*/
module.exports = withIs(Circuit, { className: 'Circuit', symbolName: '@libp2p/js-libp2p-circuit/circuit' })

Some files were not shown because too many files have changed in this diff Show More