How to cleanly disconnect from a namespace in socket.io?

Question

How to cleanly disconnect from a namespace in socket.io?

I have been trying to disconnect from a namespace or even from the main socket connection itself but have been failing. Below is my code

Server Side:

 socket.on('userDisconnect', function () {        
    socket.disconnect();
    console.log("User Disconnected");       

});

Client Side:

// already connected to /world namespace
socket.emit('userDisconnect');
    socket.disconnect();
socket = io.connect('http://something/india' );

I tried disconnecting from both client and serve side but it doesnt work. Can anyone point out the mistake. This is what is been written to console by socket.io

   info  - booting client
 debug - websocket writing 0::/world
User Disconnected
   debug - client authorized for /india
   debug - websocket writing 1::/india

/world is the namespace its trying to disconnect from and then its trying to connect to /india namespace.

node.js
sockets
azure
websocket
socket.io

Answer 1

This worked for me

broadcastSocket.packet({ type: 'disconnect' });
    broadcastSocket.$emit('disconnect');
    disconnectNamespace(broadcastSocket.name, broadcastSocket.socket);        


function disconnectNamespace (name,socket) {
    if (socket.namespaces[name]) {
        var nsp = socket.of(name);
        nsp.packet({ type: 'disconnect' });
        nsp.$emit('disconnect');
        delete socket.namespaces[name];

        if (Object.keys(socket.namespaces).length === 0) {
            socket.disconnect();
        }
    }
};

Answer 2

It doesn't look like you told the client to wait for disconnect before reconnecting.

// already connected to /world namespace
socket.emit('userDisconnect');
socket.on('disconnect', function () {
  socket = io.connect('http://something/india');
  // stuff with india socket
});

Answer 3

For socket.io v.1.3.2

Create with:

sio = io('ws://localhost:13000/device');

Delete with:

sio.disconnect();
delete sio.io.nsps[sio.nsp]; // sio.nsp = '/device'
delete sio;

This worked for me.

Answer 4

Use disconnect() method on the server or on the client (or both like your did in your example). When you first connect to the server, add 'forceNew':false to the client connect method, something like this:

var socket = io('http://localhost:3001', {'forceNew':false});