Using sessions to store data
Sessions, however, should not be mistaken for an independent replacement for cookies. In fact, the sessions API leverages a cookie to identify a user's session.
There are two broad ways of implementing sessions in Express: using cookies and using a session store at the backend. Both of them add a new object in the request object named
session, which contains the session variables.
No matter which method you use, Express provides a consistent interface for interacting with the session data.
Using the fact that cookies ...