http with discovery channel

discovery_server.js

const express = require('express')
const app = express()
const DC = require('discovery-channel')
const crypto = require('crypto')

app.get('/', (req, res) => {
  console.log('Received a request')
  res.send('Hello World')
})
const port = 30000

app.listen(port, () => {
  console.log('Example app listening on port %s!', port)
  let channel = DC({dht: true}) // set true to work over internet
  let id = crypto.createHash('sha256').update(Date()).digest().toString('hex')
  console.log('The id is =', id)
  channel.join(id, port)
})