Need Help with Cookie Handling for API Login in Serenity

[Julian1993ARG]

To be specific, what I need the most is to insert into my Serenity API from another application. I'm currently ignoring the AntiForgeryToken; I don't want to address that now. First, I want to log in a user who only has permissions to insert information into a specific endpoint.

Steps so far:

1. Disable the AntiForgeryToken in AccountPage/Login and in the endpoint I want to access.
2. Configure CORS to be able to connect (I had some issues with that).
3. Make the request, in this case using a simple fetch from JavaScript to log in (previously tested in Postman).

Up to this point, everything is fine. Now the problem starts: in Postman, the cookie is obtained automatically, but when I do it from a method, I can't read it. I understand this is fine, but then how do I save it to send it in my next requests?