Can I use async def functions in add_task?

Yes! FastAPI handles both standard `def` and `async def` functions perfectly in `BackgroundTasks`. It uses the same smart threadpool routing it uses for endpoints.

Can I add multiple tasks?

Absolutely. You can call `bg_tasks.add_task()` as many times as you want inside an endpoint. They will be executed sequentially in the background after the response is sent.

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Background Tasks

Learn how to optimize API performance by offloading slow I/O operations into the background. Master FastAPI's BackgroundTasks class to queue functions for execution after the HTTP response has been sent.

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