How to set an action after authorization?

Question

Java

I'm doing a project on Servlets. Let's say the user added something to his basket, and the server checks whether he is authorized, if not, sends him to the authorization page. And the question is how to make sure that after successful authorization this product is added to the cart?

Answer 1

Save somewhere the identifier of the desired action and execute it after authorization.
For example, I follow the link /profile/settings
I am not authorized and redirects me to /login, adding the parameter /login?redirect=/profile/settings
to the URL After authorization, we look at the URL and if there is a redirect parameter, then redirect to the right place.
With a basket, you can write in cookies, well, or wherever your imagination will indicate.