rust-libp2p-nym

This repo contains an implementation of a libp2p transport using the Nym SDK.

Usage

To instantiate a libp2p swarm using the transport:

use futures::prelude::*;
use libp2p::SwarmBuilder;
use libp2p::{ping, swarm::SwarmEvent, Multiaddr};
use libp2p_identity::{Keypair, PeerId};
use rust_libp2p_nym::transport::NymTransport;
use std::error::Error;

let local_key = Keypair::generate_ed25519();
let local_peer_id = PeerId::from(local_key.public());
println!("Local peer id: {local_peer_id:?}");

let mut swarm = {
    println!("Running `ping` example using NymTransport");
    let client = nym_sdk::mixnet::MixnetClient::connect_new().await?;
    let transport = NymTransport::new(client, local_key.clone()).await?;

    SwarmBuilder::with_new_identity()
        .with_tokio()
        .with_other_transport(|_| transport)?
        .with_swarm_config(|cfg| cfg.with_idle_connection_timeout(Duration::from_secs(20)))
        .build()
};

See examples/ping.rs and examples/chat.rs for full usage examples such as setting Behaviour.

Tests

Install protoc.

# Ubuntu/Debian
apt-get install protobuf-compiler
# Arch/Manjaro
yay protobuf

Standard cargo command:

cargo test

Ping example

# Terminal window 1 
cargo run --example ping
# this will log something like Listening on /nym/4Gf3CkYhc8tYzLsyWwboGVDgcVX9WHUrtbYtdb1Y5YiA.9n5XxwvyUuL9GVfFS9mwawSnG3hvaitDKq7HT8bMHTJb@C7J8SwZQqjWqhBryyjJxLt7FacVuPTwAmR2otGy53ayi - copy that /nym/ multiaddr 

# Terminal window 2 
cargo run --example ping -- <multiaddr from terminal 1>