FastAPI: a Python backend

Lesson 05 · 11 min

Auth and tests

The current user is a dependency too. And TestClient checks the API without a server.

OAuth2PasswordBearer extracts the token from the Authorization header. A get_current_user dependency verifies it and returns the user or raises 401. A route that needs sign-in just adds user: User = Depends(get_current_user).

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