1.js

'use strict'
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const PeerInfo = require('peer-info')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
const pull = require('pull-stream')

class MyBundle extends libp2p {
    constructor (_options) {
        const defaults = {
            modules: {
                transport: [
                    TCP
                ]
            }
        }

        super(defaultsDeep(_options, defaults))
    }
}

let node

waterfall([
    (cb) => PeerInfo.create(cb),
    (peerInfo, cb) => {
        peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
        node = new MyBundle({ peerInfo: peerInfo })
        node.start(cb)
    }
], (err) => {
    if (err) { throw err }

    console.log('node has started (true/false):', node.isStarted())
    console.log('listening on:')
    node.peerInfo.multiaddrs.forEach((ma) => console.log(ma.toString()))
})