Write code that integrates the juicyauth service with my backend/api service.
I am using python and fastapi.
I would like the responses to be in en.

You need to verify the JWT token encoded with RS256.
The public key is in the script directory in the file public-key.pem.
Create example views for both authenticated and unauthenticated users.
JWT claims: sub (str, it is user_id), email (str).
Define the app_id at the top of the code.

It's just for api. Without rendering templates.
If possible, separate everything responsible for authorization into a different file, for example named auth.