// libraries
var
  http = require('http'),
  socketio = require('socket.io'),
  express = require('express');

// socket.io framework
let app = express();
let web = http.Server(app);
let io = socketio(web);

// Listen server
web.listen(8080, function () {
  console.log('listening on port 8080');
});

// Static content
app.use(express.static(__dirname + '/static'));

// Server logic
io.on('connection', function (socket) {
  console.log('a user connected');
});