Socket.io发射和广播事件，但不会“听到”来自服务器的事件

I'm new to Socket.io and Express. I'm just working on getting the basic chat scenario up and running while assigning users to a session. From my research I've realized there are about as many ways to do this as there are stars. I've also realized that there really isnt one "accepted standard" (if I'm wrong, do show me). This was the simplest manner I figured out (using req.session.'name' = 'value')I'm new to Socket.io and Express. I'm just work