如何使用Socket.io和Express处理会话？

Question

I have an application up and running. Users requested that after they log in they would stay logged when they come back later.

I know that I need somehow store session data on client side, cookies for example. I tried this https://stackoverflow.com/a/25618636/2440515 but it doesn't work. Neither this https://www.npmjs.com/package/socket.io-handshake

I have both Express and Socket.io in the latests versions.

My application authenticates using Socket.io, so I will need a way to update cookies from Socket.io callback. I spent last 4h searching and trying different solutions. Can someone give me a hint?

Thank you!

Answer 1

You can use coockie module for resolve the cookies passed:

$ npm install cookie

On code:

//...
var cookie = require('cookie');
//...
io.use(function (socket, next) {
   var cookies = cookie.parse(socket.request.headers.cookie);

   var my_secret = cookies.my_secret || null;

   if (!my_secret) {
       return next(new Error('No cookie set'));
   }

   validateMySecretAsync(my_secret, next);

});
// ....