FastAPI quiz

Test your FastAPI knowledge with a free interactive quiz — 50 questions with answers and explanations. No signup needed to play.

How are path parameters declared in FastAPI?

1. How are path parameters declared in FastAPI?
2. How do you read a JSON body without a Pydantic model?
3. How do you raise a 404 in an endpoint?
4. Which standard automatically backs FastAPI's docs?
5. Which decorator declares a GET endpoint at `/items`?
6. How does FastAPI differentiate path vs query parameters?
7. How is a request JSON body typically modeled?
8. Where does the auto-generated Swagger UI live?
9. How do you handle file uploads in FastAPI?
10. How do you read a request header named `X-Token`?
11. What does `tags=["users"]` in a route decorator do?
12. Which Pydantic field declaration would you use to validate that `age` is non-negative?

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