libp2p discovery setup

libp2p-discovery-setup.js

const Libp2p = require('libp2p')
const WebSockets = require('libp2p-websockets')
const WebRtcStar = require('libp2p-webrtc-star')
const Bootstrap = require('libp2p-bootstrap')
const Mdns = require('libp2p-mdns')

// 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: {
    // … other required modules
    transport: [WebSockets, WebRtcStar],
    peerDiscovery: [Bootstrap, Mdns]
  },
  config: {
    peerDiscovery: {
      [Bootstrap.tag]: {
        enabled: true,
        list: bootstrapMultiaddrs // provide array of multiaddrs
      }
    }
  },
  // ...
})

await node.start()

node.on('peer:discovery', (peer) => {})