How do I get a list of connected sockets/clients with Socket.IO?

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In Socket.IO 0.7 you have a clients method on the namespaces. This returns an array of all connected sockets.

API for no namespace:

var clients = io.sockets.clients();
var clients = io.sockets.clients('room'); // all users from room `room`

For a namespace

var clients = io.of('/chat').clients();
var clients = io.of('/chat').clients('room'); // all users from room `room`

Note: This solution only works with a version prior to 1.0

From 1.x and above, please refer to getting how many people are in a chat room in socket.io.

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