Is it possible to store at least some state of the client on the server in accordance with the principles of REST?

Question

RESTful API

Something I'm a little confused. According to REST principles, no client state can be stored on the server, but what about user sessions? If we save some data to the session and store it on the server, are we already violating the principles of REST? And our service is not Restfull ?
and if you save that the user is logged in to the site?
and if you save at what step was the user if the form is a lot of pages?

Answer 1

You are confused
Any rest can contain a token, and here you give information for a specific user on it, or an error