Socket.io https websocket server with custom web socket url

io-wss

const fs = require('fs')
const https = require('https')
const app = require('express')()
var privateKey = fs.readFileSync('./privatekey.pem', 'utf8')
var certificate = fs.readFileSync('./certificate.pem', 'utf8')

const credentials = {key: privateKey, cert: certificate}

const httpsServer = https.createServer(credentials, app)

// const server = require('http').createServer(app)

const io = require('socket.io')(httpsServer, {path:'/web/socket'})

io.on('connection', client => {
        console.log('client conneted')
        client.on('disconnect', () => console.log('client disconnected'))

})

httpsServer.listen(8081, () => 'https server listening on port 8081')