Example of socket.io server for #67

main.js

'use strict';

const app = require('express')();
const http = require('http').Server(app);
const io = require('socket.io')(http, { serveClient: false });
const middleware = require('socketio-wildcard')();

io.use(middleware);

app.use((req, res, next) => {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
  next();
});

io.on('connection', socket => {
  console.log('a user connected');
  socket.on('disconnect', () => {
    console.log('user disconnected');
  });
  socket.on('*', packet => {
    const [eventName, ...data] = packet.data;
    console.log('EMITTED:', eventName, ...data);
    socket.emit(eventName, ...data)
  })
});

http.listen(3000, () => {
  console.log('listening on *:3000');
});