We have extended our Express application we created in Chapter 1, Backend Development with Express, to include real-time communications using Socket.IO. The next thing to do is to build out all the real-time events that Socket.IO is going to listen for and respond to. We are just going to create the skeleton for each of these listeners. In Chapter 7, Using Backbone and React for DOM Events, we will add the code to respond to these events, as they are going to retrieve and add data to Redis.
Open up index.js, present in packtchat\socket.io, and change the entire socketConnection function to the following code:
var socketConnection = function socketConnection(socket){
socket.on('GetMe', function(){});
socket.on('GetUser', function(room){});
socket.on('GetChat', function(data){});
socket.on('AddChat', function(chat){});
socket.on('GetRoom', function(){});
socket.on('AddRoom', function(r){});
socket.on('disconnect', function(){});
};