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Code Issues Projects Releases Wiki Activity

docs: update examples to 0.28.x api (#625)

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* 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>
This commit is contained in:
Vasco Santos
2020-05-15 15:37:47 +02:00
committed by Jacob Heun
parent 56316b8c1e
commit 0fbb59748e
30 changed files with 298 additions and 249 deletions
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22
examples/peer-and-content-routing/1.js
View File

@@ -4,22 +4,21 @@
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 delay = require('delay')
const createNode = async () => {
const peerInfo = await PeerInfo.create()
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
const node = await Libp2p.create({
peerInfo,
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [SECIO],
connEncryption: [NOISE, SECIO],
dht: KadDHT
},
config: {
@@ -40,16 +39,19 @@ const createNode = async () => {
createNode()
])
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
await Promise.all([
node1.dial(node2.peerInfo),
node2.dial(node3.peerInfo)
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.peerInfo.id)
const peer = await node1.peerRouting.findPeer(node3.peerId)
console.log('Found it, multiaddrs are:')
peer.multiaddrs.forEach((ma) => console.log(ma.toString()))
peer.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${peer.id.toB58String()}`))
})();

23
examples/peer-and-content-routing/2.js
View File

@@ -5,7 +5,7 @@ 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')
@@ -13,15 +13,14 @@ const all = require('it-all')
const delay = require('delay')
const createNode = async () => {
const peerInfo = await PeerInfo.create()
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
const node = await Libp2p.create({
peerInfo,
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [SECIO],
connEncryption: [NOISE, SECIO],
dht: KadDHT
},
config: {
@@ -42,15 +41,21 @@ const createNode = async () => {
createNode()
])
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
await Promise.all([
node1.dial(node2.peerInfo),
node2.dial(node3.peerInfo)
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.peerInfo.id.toB58String(), cid.toBaseEncodedString())
console.log('Node %s is providing %s', node1.peerId.toB58String(), cid.toBaseEncodedString())
// wait for propagation
await delay(300)

22
examples/peer-and-content-routing/README.md
View File

@@ -17,10 +17,13 @@ const Libp2p = require('libp2p')
const KadDHT = require('libp2p-kad-dht')
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
connEncryption: [ NOISE, SECIO ],
// we add the DHT module that will enable Peer and Content Routing
dht: KadDHT
},
@@ -40,18 +43,21 @@ const node1 = nodes[0]
const node2 = nodes[1]
const node3 = nodes[2]
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
node2.peerStore.addressBook.set(node3.peerId, node3.multiaddrs)
await Promise.all([
node1.dial(node2.peerInfo),
node2.dial(node3.peerInfo)
node1.dial(node2.peerId),
node2.dial(node3.peerId)
])
// Set up of the cons might take time
await delay(100)
const peer = await node1.peerRouting.findPeer(node3.peerInfo.id)
const peer = await node1.peerRouting.findPeer(node3.peerId)
console.log('Found it, multiaddrs are:')
peer.multiaddrs.forEach((ma) => console.log(ma.toString()))
peer.multiaddrs.forEach((ma) => console.log(`${ma.toString()}/p2p/${peer.id.toB58String()}`))
```
You should see the output being something like:
@@ -59,8 +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.
@@ -75,7 +81,7 @@ Instead of calling `peerRouting.findPeer`, we will use `contentRouting.provide`
```JavaScript
await node1.contentRouting.provide(cid)
console.log('Node %s is providing %s', node1.peerInfo.id.toB58String(), cid.toBaseEncodedString())
console.log('Node %s is providing %s', node1.peerId.toB58String(), cid.toBaseEncodedString())
const provs = await all(node3.contentRouting.findProviders(cid, { timeout: 5000 }))