Building APIs With FastAPI

Check your understanding of routes,requests,and responses in FastAPI.

1. Who is the creator of FastAPI?

Guido van Rossum Sebastian Ramirez Raymond Hettinger

2. Which of the following are key features of FastAPI?

Automatic OpenAPI documentation Async/await support Static type hinting integration No built-in data validation

3. FastAPI is built on top of the Starlette framework.

True False

4. What Python library does FastAPI use for data validation and parsing (abbrev.)?

5. Which HTTP method decorator is used to handle resource creation in FastAPI?

@app.get @app.post @app.put

6. Which of the following are valid ways to define query parameters in FastAPI?

Function parameters with default values Using the Query() function Including them in the URL path As Pydantic model fields

7. Path parameters in FastAPI are enclosed in square brackets [].

True False

8. What is the default endpoint for FastAPI's interactive Swagger UI documentation?

9. Which class must a Pydantic model inherit from to define request bodies?

BaseModel RequestBody Schema

10. Which of the following are supported by FastAPI's dependency injection system?

Singleton dependencies Async dependency functions Class-based dependencies Only synchronous dependencies

11. FastAPI endpoints can return Python dictionaries, which are automatically converted to JSON.

True False

12. What is the term for a function that runs after returning a response, often used for cleanup tasks?

13. How do you make a query parameter required in FastAPI?

Omit a default value Add a 'required' flag Use the Required type

14. Which status codes can be returned using FastAPI's status module?

status.HTTP_201_CREATED status.HTTP_404_NOT_FOUND status.HTTP_500_INTERNAL_SERVER_ERROR status.HTTP_300_MULTIPLE_CHOICES

15. FastAPI does not support synchronous endpoint functions.

True False

16. What command is commonly used to run a FastAPI application during development (starts with 'uvicorn')?

17. Which middleware is used to handle Cross-Origin Resource Sharing (CORS) in FastAPI?

CORSHandler CORSMiddleware CrossOriginMiddleware

18. Which of the following are benefits of using Pydantic models in FastAPI?

Automatic data validation Type conversion Automatic API schema generation Database ORM integration

19. FastAPI's dependency injection system caches dependencies by default (singleton scope).

True False

20. What is the full form of 'OpenAPI', the standard used by FastAPI for API documentation?

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