Source for trying to illustrate socket.io issue

client.js

const io = require('socket.io-client')

let socket = io.connect('http://localhost:3000')

socket.on('connect', (data) => {

  let playerId
  console.log('connected')

  socket.on('success', () => {
    console.log('logged in')
  })
})

server.js

const server = require('http').createServer()
const socketio = require('socket.io')


io = socketio.listen(server)
// need to initialize Game below because
// socket io is required in the game model

io.on("connection", (socket) => {

  console.log("connected")
  socket.emit("success")
})

server.listen(3000)