Use Redis and Socket.io for user authentication

Question

I am learning to use redis and socket.io considering the number of advantages they have. In particular, I am trying to use them for user authentication too. I would appreciate if anyone explains with a simple code to give me an initial push. The framework I am using is express. I read that express and socket.io cant talk to each other directly.

I found a related link about this Socket.IO Authentication but I didnt quite understand how the db transactions are happening from the answer given there.

Answer 1

See http://www.danielbaulig.de/socket-ioexpress/