js-libp2p/examples/discovery-mechanisms/1.js

/* eslint-disable no-console */
'use strict'

const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const { NOISE } = require('@chainsafe/libp2p-noise')
const Bootstrap = require('libp2p-bootstrap')

const bootstrapers = require('./bootstrapers')

;(async () => {
  const node = await Libp2p.create({
    addresses: {
      listen: ['/ip4/0.0.0.0/tcp/0']
    },
    modules: {
      transport: [TCP],
      streamMuxer: [Mplex],
      connEncryption: [NOISE],
      peerDiscovery: [Bootstrap]
    },
    config: {
      peerDiscovery: {
        bootstrap: {
          interval: 60e3,
          enabled: true,
          list: bootstrapers
        }
      }
    }
  })

  node.connectionManager.on('peer:connect', (connection) => {
    console.log('Connection established to:', connection.remotePeer.toB58String())	// Emitted when a peer has been found
  })

  node.on('peer:discovery', (peerId) => {
    // No need to dial, autoDial is on
    console.log('Discovered:', peerId.toB58String())
  })

  await node.start()
})();