question: How do I set a custom status code for an endpoint?


question: How do I receive an uploaded file in an endpoint?


question: How do I run a task in the background after returning a response?


question: How do I enable CORS so my frontend can call the API?


question: How do I declare optional query parameters with default values?


question: How do I declare a path parameter with a type like int?


question: How do I receive a JSON request body using a Pydantic model?


question: How do I receive form data instead of JSON?


question: How do I return a custom error response with a specific status code and message?


question: How do I use response_model to control which fields are returned?


question: How do I serve static files like images or CSS?


question: How do I write tests for my FastAPI endpoints?


question: How do I use WebSockets in FastAPI?


question: How do I set a cookie in a response?


question: How do I add custom headers to a response?


question: How do I implement JWT token authentication?


question: How does FastAPI's dependency injection system work?

category: behavior


question: What does jsonable_encoder do and when do I need it?

category: behavior


question: What is the difference between async def and def endpoints?

category: behavior


question: How can a dependency run cleanup code after the response is sent?

category: behavior


question: How can I customize or extend the generated OpenAPI schema?

category: behavior


question: What error does FastAPI return when request validation fails, and how do I customize it?

category: behavior


question: How does the OAuth2 password flow work in FastAPI?

category: behavior


question: How do I run code on application startup and shutdown?

category: behavior


question: Can I mount another application under a path prefix?

category: behavior


question: How does FastAPI run regular def endpoints without blocking the event loop?

category: behavior


question: How do I manage configuration and settings with environment variables?

category: behavior


question: Where is the APIRouter class defined?

category: location


question: Where is the OAuth2PasswordBearer class implemented?

category: location


question: Where is the jsonable_encoder function implemented?

category: location


question: Where is the BackgroundTasks class defined?

category: location


question: Where is FastAPI's HTTPException defined?

category: location


question: Where is the main FastAPI application class defined?

category: location


question: Where are the Query, Path, and Body parameter functions defined?

category: location


question: Where is the TestClient that FastAPI provides for testing?

category: location


question: How do I connect FastAPI to MongoDB?

category: unanswerable


question: Does FastAPI have built-in rate limiting?

category: unanswerable


question: How do I integrate Celery task queues with FastAPI?

category: unanswerable


question: How do I use FastAPI with the Django ORM?

category: unanswerable


question: Does FastAPI include a built-in admin dashboard?

category: unanswerable


question: How do I schedule recurring cron jobs inside FastAPI?

category: unanswerable


question: Does FastAPI have built-in database migration support?

category: unanswerable