Simple Node HTTP Server w-Sockets

var express = require('express')
var app = express()
var http = require('http').Server(app)

app.use(express.static(__dirname))
app.get('/', function(req,res){
  res.sendFile(__dirname + '/index.html')
})

const WebSocket = require('ws');
const socketConnection = new WebSocket.Server({
    port: 4000,
    server: false
});

console.log(socketConnection);

socketConnection.on('connection', function connection(ws) {
    ws.on('message', function incoming(message) {
        console.log(message);
        console.log("works");
    });

    ws.on('close', function close() {
        console.log('disconnected');
    });
});

console.log(WebSocket.readyState);

http.listen(3000, function(){
  console.log('Listening on *:3000');
})