PWA Registration/ Login with authentication and authorization

Our PWA already contains a simple user registration and login mechanism, this means the user can register with an email address and password. If the user is registered, he is able to login with username and password. The Rest.API however doesn’t provide any authorization mechanism, this means that the API is open to use for any request from everyone which knows the URL.

Technologies used:
- Backend: .NET 5.0 / .NET 6.0
- Frontend: ReactJS