Uncaught TypeError: Object #<Namespace> has no method 'clients'

[chriskilding]

The ability to get all clients in a room with the following calls described in the wiki has been broken:

• io.sockets.clients('room')
• io.of('namespace').clients('room')

If you run the following test, it will fail when run against the latest git master with the reason "Uncaught TypeError: Object # has no method 'clients'":

it('should return the sockets in a room', function(done){
var srv = http();
var sio = io(srv);
var roomId = 'socketsInRoom';

sio.on('connect', function (socket) {
  socket.join(roomId, function () {
    expect(sio.sockets.clients(roomId)).to.contain(socket);
    done();
  });
});

srv.listen(function(){
  client(srv);
});
});

Was this functionality removed intentionally, or just accidentally because there was no spec testing for the clients function?

[lucascampbell]

I'm having same issue migrating to 1.0. io.sockets.clients(roomId) no longer exists? Is this fixed somewhere?

[ismarslomic]

Duplicate #1544. See answer there

[lucascampbell]

I am using io.sockets.client(room).length to get a count of clients. Is there a better way to do this?

[ismarslomic]

See #1544

[lucascampbell]

thanks saw that.

io.sockets.adapter.rooms['test room'].length

[ohEmily]

I'm having trouble making this work when limited to a particular namespace. Rather than just using io.sockets, I am limiting the relevant connections to a namespace. Before switching to Socket.IO v1 and above, the code used to read:

    var chat = io.of('/chat').on('connection', function(clntSocket)
    {         
      // each client is put into a chat room restricted to max 2 clients
      clntSocket.on('joinRoom', function(room_id)
      {
        var clients_in_room = chat.clients(room_id).length;   
                // ... etc

Now, I'm trying to change that last line as per the instructions in this thread. Why doesn't this work?

var clients_in_room = chat.adapter.rooms[room_id].length;

In the past, I could just substitute io.sockets for the variable name I created for that namespace, chat (in this case).

Any ideas?

[lucascampbell]

I found a solution but can't seem to find the link right now. Basically, you can use:

roomCount(io.sockets.adapter.rooms[room]);

function roomCount(room){
localCount = 0;
if (room) {
for (var id in room) {
localCount ++;
}
}
return localCount;
}

[ohEmily]

Thanks Lucas! This still doesn't technically limit the search for a room of the name 'room' to a specific namespace, though, but it seems to be working.

It's unfortunate that we've had to resort to writing a separate function like this... I hope they address this in an update.

[FREEZX]

Please read discussion #1428. The pull requests that reimplement the clients function you can find here: #1630

[wamoyo]

I had this issue too, Thanks Lucas! This blog post should be updated: http://www.html5rocks.com/en/tutorials/webrtc/infrastructure/ Will let them know.