Il est tout de même possible d'utiliser `BackgroundTask` seul dans **FastAPI**, mais dans ce cas il faut créer l'objet dans le code et renvoyer une `Response` Starlette l'incluant.

Plus de détails sont disponibles dans <a href="https://www.starlette.io/background/" class="external-link" target="_blank">la documentation officielle de Starlette sur les tâches d'arrière-plan</a> (via leurs classes `BackgroundTasks`et `BackgroundTask`).

This is useful for operations that need to happen after a request, but that the client doesn't really have to be waiting for the operation to complete before receiving the response.

This includes, for example:

* Email notifications sent after performing an action:
    * As connecting to an email server and sending an email tends to be "slow" (several seconds), you can return the response right away and send the email notification in the background.
* Processing data: