How do sessions work in Flask?

Question

Flask

The book says the following: the data stored in the session has a unique key corresponding to your browser's cookie, which ensures that the session data is stored separately for each of the users.

In Flask, there is only secret_key and it is the same for all users, how does this mechanism work in general?
There is no detailed explanation anywhere.

Answer 1

The default flag contains client sessions (the session dictionary is encrypted using secret_key and placed in a cookie).
More about sessions in a flask:
https://flask.palletsprojects.com/en/1.1.x/quickst...
There are extensions for storing sessions in the north (when a user has only session_id in cookies), for example:
https://pypi .org/project/flask-session/