How to access session in express, outside of the req?

Question

I know that I can use

function(req, res) {
    req.session
}

using express. However I need to access the session outside of the response func

Answer 1

I believe checking socket.handshake should get you the session:

io.sockets.on('connection', function(socket) { 
  console.log(socket.handshake.sessionID);
});

When the client establishes a socket connection with your socket.io server, the client sends a WebSocket handshake request. What I'm doing above is grabbing the session ID from the handshake.