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  2. github.com/tiangolo/fastapi

    docs/en/docs/reference/background.md 

    # Background Tasks - `BackgroundTasks`

You can declare a parameter in a *path operation function* or dependency function with the type `BackgroundTasks`, and then you can use it to schedule the execution of background tasks after the response is sent.

You can import it directly from `fastapi`:

```python
from fastapi import BackgroundTasks
```
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  3. github.com/golang/go

    misc/chrome/gophertool/background.html 

    <html>
<!--
 Copyright 2011 The Go Authors. All rights reserved.
 Use of this source code is governed by a BSD-style
 license that can be found in the LICENSE file.
-->
<head>
<script src="gopher.js"></script>
<script src="background.js"></script>
</head>
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  4. github.com/tiangolo/fastapi

    fastapi/background.py 

    from starlette.background import BackgroundTasks as StarletteBackgroundTasks
from typing_extensions import Annotated, Doc, ParamSpec

P = ParamSpec("P")


class BackgroundTasks(StarletteBackgroundTasks):
    """
    A collection of background tasks that will be called after a response has been
    sent to the client.

    Read more about it in the
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  5. github.com/tiangolo/fastapi

    docs/de/docs/reference/background.md 

    Nils Lindemann <******@****.***> 1708554408 +0100
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  6. github.com/golang/go

    misc/chrome/gophertool/background.js 

    ramenjuniti <******@****.***> 1574074702 +0900
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  7. github.com/tiangolo/fastapi

    docs/fr/docs/tutorial/background-tasks.md 

    ```Python hl_lines="6-9"
{!../../../docs_src/background_tasks/tutorial001.py!}
```

## Ajouter une tâche d'arrière-plan

Dans votre *fonction de chemin*, passez votre fonction de tâche à l'objet de type `BackgroundTasks` (`background_tasks` ici) grâce à la méthode `.add_task()` :


```Python hl_lines="14"
{!../../../docs_src/background_tasks/tutorial001.py!}
```

`.add_task()` reçoit comme arguments :
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  8. github.com/tiangolo/fastapi

    docs/de/docs/tutorial/background-tasks.md 

        ```Python hl_lines="13  15  22  25"
    {!> ../../../docs_src/background_tasks/tutorial002_an_py310.py!}
    ```

=== "Python 3.9+"

    ```Python hl_lines="13  15  22  25"
    {!> ../../../docs_src/background_tasks/tutorial002_an_py39.py!}
    ```

=== "Python 3.8+"

    ```Python hl_lines="14  16  23  26"
    {!> ../../../docs_src/background_tasks/tutorial002_an.py!}
    ```

=== "Python 3.10+ nicht annotiert"
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  9. github.com/tiangolo/fastapi

    docs/pt/docs/tutorial/background-tasks.md 

    A classe `BackgroundTasks` vem diretamente de <a href="https://www.starlette.io/background/" class="external-link" target="_blank">`starlette.background`</a>.

Ela é importada/incluída diretamente no FastAPI para que você possa importá-la do `fastapi` e evitar a importação acidental da alternativa `BackgroundTask` (sem o `s` no final) de `starlette.background`.
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  10. github.com/tiangolo/fastapi

    docs/ko/docs/tutorial/background-tasks.md 

    ## 기술적 세부사항

`BackgroundTasks` 클래스는 <a href="https://www.starlette.io/background/" class="external-link" target="_blank">`starlette.background`</a>에서 직접 가져옵니다.

`BackgroundTasks` 클래스는 FastAPI에서 직접 임포트하거나 포함하기 때문에 실수로 `BackgroundTask` (끝에 `s`가 없음)을 임포트하더라도 starlette.background에서 `BackgroundTask`를 가져오는 것을 방지할 수 있습니다.
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  11. github.com/tiangolo/fastapi

    docs/ja/docs/tutorial/background-tasks.md 

    また、書き込み操作では `async` と `await` を使用しないため、通常の `def` で関数を定義します。

```Python hl_lines="6-9"
{!../../../docs_src/background_tasks/tutorial001.py!}
```

## バックグラウンドタスクの追加

*path operations 関数* 内で、`.add_task()` メソッドを使用してタスク関数を *background tasks* オブジェクトに渡します。

```Python hl_lines="14"
{!../../../docs_src/background_tasks/tutorial001.py!}
```

`.add_task()` は以下の引数を受け取ります:

* バックグラウンドで実行されるタスク関数 (`write_notification`)。
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