What's difference with express-session and cookie-session?

Question

I am new with Express. As Express 4.x has removed bundled middlewares. Any middleware I want to use should be required. When I read the README with exp

Answer 1

Basically, express-session is more abstract, it supports different session stores (like files, DB, cache and whatnot).

And cookie-session is a simple / lightweight cookie-based (cookie is the only storage engine supported: all the session info is stored on the client, in a cookie) session implementation. This kind of sessions is probably most famous for its Rails implementation.