```
http://127.0.0.1:8000/items/foo-item?needy=sooooneedy
```

...bu iş görür:

```JSON
{
    "item_id": "foo-item",
    "needy": "sooooneedy"
}
```

Ve elbette, bazı parametreleri zorunlu, bazılarını varsayılan değerli ve bazılarını tamamen opsiyonel olarak tanımlayabilirsiniz:

//// tab | Python 3.10+

```Python hl_lines="8"

///

## Guide utilisateur avancé

Il existe également un **Guide d'utilisation avancé** que vous pouvez lire plus tard après ce **Tutoriel - Guide d'utilisation**.

Le **Guide d'utilisation avancé**, qui s'appuie sur cette base, utilise les mêmes concepts et vous apprend quelques fonctionnalités supplémentaires.

Mais vous devez d'abord lire le **Tutoriel - Guide d'utilisation** (ce que vous êtes en train de lire en ce moment).

This code is not exhaustive or complete. It serves to distill our common understanding of a
collaborative, shared environment, and goals. We expect it to be followed in spirit as much as in
the letter.

Diversity Statement
-------------------

We encourage everyone to participate and are committed to building a community for all. Although we
may not be able to satisfy everyone, we all agree that everyone is equal.

Par défaut, **FastAPI** convertirait automatiquement cette valeur de retour en JSON en utilisant le `jsonable_encoder` expliqué dans [JSON Compatible Encoder](../tutorial/encoder.md){.internal-link target=_blank}.

```
/files/{file_path:path}
```

In diesem Fall ist der Name des Parameters `file_path`. Der letzte Teil, `:path`, sagt aus, dass der Parameter ein *Pfad* sein soll.

Sie verwenden das also wie folgt:

```Python hl_lines="6"
{!../../docs_src/path_params/tutorial004.py!}
```

/// tip | "Tipp"

* If you translate pages, add a single pull request per page translated. That will make it much easier for others to review it.

* To check the 2-letter code for the language you want to translate, you can use the table <a href="https://en.wikipedia.org/wiki/List_of_ISO_639-1_codes" class="external-link" target="_blank">List of ISO 639-1 codes</a>.

#### Existing language

Si tout fonctionne, ou après avoir fait les changements nécessaires, et que tous vos tests passent, vous pouvez
épingler votre version de `fastapi` à cette nouvelle version récente.

## À propos de Starlette

Vous ne devriez pas épingler la version de `starlette`.

Différentes versions de **FastAPI** utiliseront une version spécifique plus récente de Starlette.

#### A "professional" attack

Of course, the attackers would not try all this by hand, they would write a program to do it, possibly with thousands or millions of tests per second. And they would get just one extra correct letter at a time.

But doing that, in some minutes or hours the attackers would have guessed the correct username and password, with the "help" of our application, just using the time taken to answer.

islands","somalia","south africa","south georgia and the south sandwich islands","south sudan","spain","sri lanka","sudan","suriname","svalbard and jan mayen","swaziland","sweden","switzerland","syria","taiwan","tajikistan","tanzania","thailand","timor-leste","togo","tokelau","tonga","trinidad and tobago","tunisia","turkey","turkmenistan","turks and caicos islands","tuvalu","uganda","ukraine","united arab emirates","united kingdom","united states minor outlying islands","united states","uruguay","uzbe...

En héritant de `str` la documentation sera capable de savoir que les valeurs doivent être de type `string` et pourra donc afficher cette `Enum` correctement.

Créez ensuite des attributs de classe avec des valeurs fixes, qui seront les valeurs autorisées pour cette énumération.

```Python hl_lines="1  6-9"
{!../../docs_src/path_params/tutorial005.py!}
```

/// info