Find namespace or URL information from connected socket?

Question

Is there any way to find a socket's namespace or client URL when it connects to the server?

Client:

var socket = io.connect('/ns1');

Server:

io.sockets.on('connection', function(socket){
    //socket.something.namespace?
});

I've looked through the object structure of the socket extensively but any reference to namespaces just has "name" : "/" or lists all the server's namespaces and not the single socket's namespace.

Same thing with URL as well.. I've only been able to find it in headers referrer but that might not be as robust as a true URL reference.

score 2 · Accepted Answer · edited May 23 '17 at 10:27

The socket.io guide uses this way to listen for a conneciton on a namespace:

var nsp = io.of('/my-namespace');
nsp.on('connection', function(socket){
  console.log('someone connected'):
});

It also refers to "io.sockets" as the default namespace. So when the "io.sockets.on('connection'" method is fired you are in the default namespace. Related

Edit: Receiving connections from dynamically created namespaces works pretty straightforward as well. I think this solves your initial question.

Another edit: The namespace is of course also accessable in the socket this.nsp.name:

function registerNamespace(name){
  var nsp = io.of(name);
  nsp.on('connection', function(socket){
    console.log("I am in namespace: " + this.name);

    socket.on('hello', function () {
      console.log("Hello in namespace: " + this.nsp.name);      
    });

    socket.on('disconnect', function () {
      console.log("I was in namespace: " + this.nsp.name);      
    });
  }); 
}

registerNamespace("/name2");
registerNamespace("/name1");

is there any way to receive connections from dynamically generated namespaces? — Rho, Sep 16 '14 at 13:02
This should work as well if you use a function. I edited my post. :) — DerM, Sep 16 '14 at 13:52

Find namespace or URL information from connected socket?

1 Answers1