Libp2p discovery using webrtc-star

discovery.js

const libp2p = require('libp2p')                                                                                                                                                                         
const TCP = require('libp2p-tcp')                                                                                                                                                                        
const Mplex = require('libp2p-mplex')                                                                                                                                                                    
const SECIO = require('libp2p-secio')                                                                                                                                                                    
const PeerInfo = require('peer-info')                                                                                                                                                                    
const Railing = require('libp2p-railing')                                                                                                                                                                
const waterfall = require('async/waterfall')                                                                                                                                                             
const wrtc = require('wrtc');                                                                                                                                                                            
const wstar = require('libp2p-webrtc-star')                 

const ws1 = new wstar({wrtc: wrtc});                                                                                                                                                                     
                                                                                                                                                                                                         
class MyBundle extends libp2p {                                                                                                                                                                          
  constructor (peerInfo) {                                                                                                                                                                               
    const modules = {                                                                                                                                                                                    
      transport: [ws1],                                                                                                                                                                                  
      connection: {                                                                                                                                                                                      
        muxer: [Mplex],                                                                                                                                                                                  
        crypto: [SECIO]                                                                                                                                                                                  
      },                                                                                                                                                                                                 
      discovery: [ws1.discovery]                                                                                                                                                                         
    }                                                                                                                                                                                                    
    super(modules, peerInfo)                                                                                                                                                                             
  }                                                                                                                                                                                                      
}                                                                                                                                                                                                        
                      
waterfall([                                                                                                                                                                                              
  (cb) => PeerInfo.create(cb),                                                                                                                                                                           
  (peerInfo, cb) => {                                                                                                                                                                                    
    const peerIdStr = peerInfo.id.toB58String();                                                                                                                                                         
    const ma = '/dns4/star-signal.cloud.ipfs.team/tcp/443/wss/p2p-webrtc-star/ipfs/' + peerIdStr;                                                                                                        
    //const ma = '/ip4/127.0.0.1/tcp/9090/ws/p2p-webrtc-star/ipfs/' + peerIdStr;                                                                                                                         
    // peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')                                                                                                                                                     
    peerInfo.multiaddrs.add(ma);                                                                                                                                                                         
    node = new MyBundle(peerInfo)                                                                                                                                                                        
    node.start(cb)                                                                                                                                                                                       
  }                                                                                                                                                                                                      
], (err) => {                                                                                                                                                                                            
  if (err) { throw err }                                                                                                                                                                                 
                                                                                                                                                                                                         
  node.on('peer:discovery', (peer) => {                                                                                                                                                                  
    if (!node.peerBook.has(peer)) {                                                                                                                                                                      
    console.log('Discovered:', peer.id.toB58String())                                                                                                                                                    
    let ourID = node.peerInfo.id.toB58String();                                                                                                                                                          
    console.log("Our ID: ", ourID);                                                                                                                                                                      
    node.peerBook.put(peer);                                                                                                                                                                             
    node.dial(peer, () => {})                                                                                                                                                                            
    }                                                                                                                                                                                                    
  })                                                                                                                                                                                                     
                                                                                                                                                                                                         
  node.on('peer:connect', (peer) => {                                                                                                                                                                    
    console.log('Connection established to:', peer.id.toB58String())                                                                                                                                     
  })                                                                                                                                                                                                     
})