title: Redis + Websockets: Send different channels
body: <p>I have a node server running with Redis and SockJS. Redis gets messages over different channels. Is there a way to use these channels for websockets as well. First I found Primus (<a href="https://github.com/primus/primus" rel="nofollow">https://github.com/primus/primus</a>) and was happy to have different channels (rooms) but then I saw it is only for the client side. The clients can send to different channels (rooms), but what I want is the other way around. On the server side is only the <code>write</code> function to just send data to the connected sockets.</p>
  
  <p>What I don't now is to add the channel to the message I sent and parse it on the socket client side. Is there an other way? I don't want to reinvent the wheel. </p>