How to store client associated data in socket.io 1.0

Question

The docs say socket.io doesn\'t support .get .set now

Is it okay to store client associated data like

io.sockets.on(\'connection\', function (client) {
         


        

Answer 1

Yes, it is OK to add properties to the socket.io socket object. You should be careful to not use names that could conflict with built-in properties or methods (I'd suggest adding a leading underscore or namescoping them with some sort of name prefix). But a socket is just a Javascript object and you're free to add properties like this to it as long as you don't cause any conflict with existing properties.

There are other ways to do this that use the socket.id as a key into your own data structure.

var currentConnections = {};
io.sockets.on('connection', function (client) {
    currentConnections[client.id] = {socket: client};
    client.on('data', function (somedata) {  
        currentConnections[client.id].data = someData; 
    });    
    client.on('disconnect', function() {
        delete currentConnections[client.id];
    });
});