È normalissimo **Python 3.6+**.

Per esempio, per un `int`:

```Python
item_id: int
```

o per un modello `Item` più complesso:

```Python
item: Item
```

...e con quella singola dichiarazione hai in cambio:

* Supporto per gli editor di testo, incluso:
    * Autocompletamento.
    * Controllo sulle annotazioni di tipo.

<img src="/img/tutorial/path-params/image02.png">

De la même façon, il existe bien d'autres outils compatibles, y compris des outils de génération de code
pour de nombreux langages.

## Pydantic

<a href="https://github.com/containous/traefik/releases" class="external-link" target="_blank">Download Traefik</a>, it's a single binary, you can extract the compressed file and run it directly from the terminal.

Then create a file `traefik.toml` with:

```TOML hl_lines="3"
[entryPoints]
  [entryPoints.http]
    address = ":9999"

[providers]

# Alternatives, Inspiration and Comparisons

What inspired **FastAPI**, how it compares to alternatives and what it learned from them.

## Intro

**FastAPI** wouldn't exist if not for the previous work of others.

There have been many tools created before that have helped inspire its creation.

Maintenant, rendez-vous sur <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

* La documentation interactive de l'API sera automatiquement mise à jour, y compris le nouveau corps de la requête :

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

Avoir une interface de documentation automatique de l'API.

### <a href="https://flask.palletsprojects.com" class="external-link" target="_blank">Flask</a>

Flask est un "micro-framework", il ne comprend pas d'intégrations de bases de données ni beaucoup de choses qui sont fournies par défaut dans Django.