!!! check "**FastAPI** l'utilise pour"
Gérer toute la validation des données, leur sérialisation et la documentation automatique du modèle (basée sur le schéma JSON).

    **FastAPI** prend ensuite ces données JSON Schema et les place dans OpenAPI, en plus de toutes les autres choses qu'il fait.

### <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a>

injection system requires pre-registration of the dependencies and the dependencies are solved based on the declared types. So, it's not possible to declare more than one "component" that provides a certain type.

Routes are declared in a single place, using functions declared in other places (instead of using decorators that can be placed right on top of the function that handles the endpoint). This is closer to how Django does it than to how Flask (and Starlette) does it. It separates in the code...