Channels in socket.io about socket.io HOT 4 CLOSED

Why don't you just keep an index of clients, and then go through it by using .send()?
So for example, (untested code, just wrote this here)

var channels = {};
io.listen(server, {onClientMessage: function(msg, client){
  var obj = JSON.parse(msg);
  if (msg.subscribe){
    if (!channels[msg.subscribe]) channels[msg.subscribe] = [];
    channels[msg.subscribe].push(client);
  } else if (msg.publish) channels[msg.publish].each(function(c){ c.send({message: msg.message });
}});

socket.io gives you the flexibility to create whatever mechanism you want. You can also use Redis pubsub!

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In my opinion socket.io is more of a foundation that provides the tools necessary to build higher level protocols like a pubsub system. However, it should be noted that there is (currently) at least a server-side broadcast method that sends a message to all connected clients.

EDIT: Oops, that's what I get for not refreshing first before posting ;-)

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The problem is that there's no protocol that is a definite a solution to all problems. Even pub/sub falls short for many applications. I won't bundle pub/sub into socket.io, i'd much rather see a module that implements it (eg: socket.io-channels.js).

There're a couple of node projects that just implement one protocol, say, bayeux. And while bayeux might work perfectly for a subset of applications, it's useless in others.

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I'll probably go the Redis route.
Thanks for the hint!

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