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feat(libp2p): add SwarmBuilder

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Introduce the new `libp2p::SwarmBuilder`. Users should use the new `libp2p::SwarmBuilder` instead of the now deprecated `libp2p::swarm::SwarmBuilder`. See `libp2p::SwarmBuilder` docs on how to use the new builder.

Fixes #3657.
Fixes #3563.
Fixes #3179.

Pull-Request: #4120.
This commit is contained in:
Max Inden
2023-10-10 08:55:14 +02:00
committed by GitHub
parent 3ae72557ab
commit d605255fec
62 changed files with 2970 additions and 940 deletions
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2
examples/distributed-key-value-store/Cargo.toml
View File

@ -10,7 +10,7 @@ async-std = { version = "1.12", features = ["attributes"] }
async-trait = "0.1"
env_logger = "0.10"
futures = "0.3.28"
libp2p = { path = "../../libp2p", features = [ "async-std", "dns", "kad", "mdns", "noise", "macros", "tcp", "websocket", "yamux"] }
libp2p = { path = "../../libp2p", features = [ "async-std", "dns", "kad", "mdns", "noise", "macros", "tcp", "yamux"] }
[lints]
workspace = true

46
examples/distributed-key-value-store/src/main.rs
View File

@ -22,14 +22,13 @@
use async_std::io;
use futures::{prelude::*, select};
use libp2p::core::upgrade::Version;
use libp2p::kad;
use libp2p::kad::record::store::MemoryStore;
use libp2p::kad::Mode;
use libp2p::{
identity, mdns, noise,
swarm::{NetworkBehaviour, SwarmBuilder, SwarmEvent},
tcp, yamux, PeerId, Transport,
mdns, noise,
swarm::{NetworkBehaviour, SwarmEvent},
tcp, yamux,
};
use std::error::Error;
@ -37,16 +36,6 @@ use std::error::Error;
async fn main() -> Result<(), Box<dyn Error>> {
env_logger::init();
// Create a random key for ourselves.
let local_key = identity::Keypair::generate_ed25519();
let local_peer_id = PeerId::from(local_key.public());
let transport = tcp::async_io::Transport::default()
.upgrade(Version::V1Lazy)
.authenticate(noise::Config::new(&local_key)?)
.multiplex(yamux::Config::default())
.boxed();
// We create a custom network behaviour that combines Kademlia and mDNS.
#[derive(NetworkBehaviour)]
struct Behaviour {
@ -54,15 +43,26 @@ async fn main() -> Result<(), Box<dyn Error>> {
mdns: mdns::async_io::Behaviour,
}
// Create a swarm to manage peers and events.
let mut swarm = {
// Create a Kademlia behaviour.
let store = MemoryStore::new(local_peer_id);
let kademlia = kad::Behaviour::new(local_peer_id, store);
let mdns = mdns::async_io::Behaviour::new(mdns::Config::default(), local_peer_id)?;
let behaviour = Behaviour { kademlia, mdns };
SwarmBuilder::with_async_std_executor(transport, behaviour, local_peer_id).build()
};
let mut swarm = libp2p::SwarmBuilder::with_new_identity()
.with_async_std()
.with_tcp(
tcp::Config::default(),
noise::Config::new,
yamux::Config::default,
)?
.with_behaviour(|key| {
Ok(Behaviour {
kademlia: kad::Behaviour::new(
key.public().to_peer_id(),
MemoryStore::new(key.public().to_peer_id()),
),
mdns: mdns::async_io::Behaviour::new(
mdns::Config::default(),
key.public().to_peer_id(),
)?,
})
})?
.build();
swarm.behaviour_mut().kademlia.set_mode(Some(Mode::Server));