appjs_connect.js

io.on('connection', socket => {
    console.log("New user connected")
    socket.username = "Anonymous"
    socket.on('change_username', data => {
        socket.username = data.username
    })


    //handle the new message event
    socket.on('new_message', data => {
        console.log("new message")
        io.sockets.emit('receive_message', {message: data.message, username: socket.username})
    })
})