* The _path_ `/items/{item_id}` has an optional `str` _query parameter_ `q`.

### Interactive API docs

Now go to [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

You will see the automatic interactive API documentation (provided by [Swagger UI](https://github.com/swagger-api/swagger-ui)):

Wenn Sie die Seite [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs) in Ihrem Browser öffnen, sehen Sie eine automatische, interaktive API-Dokumentation:

<img src="/img/tutorial/path-params/image01.png">

/// check | Testen

Wiederum, mit dieser gleichen Python-Typdeklaration gibt Ihnen **FastAPI** eine automatische, interaktive Dokumentation (verwendet die Swagger-Benutzeroberfläche).

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Check it { #check-it }

Go to the interactive docs at: [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

You will see something like this:

<img src="/img/tutorial/security/image01.png">

/// check | Authorize button!

```console
$ fastapi dev

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Vérifier { #check-it }

Allez à la documentation interactive à l'adresse : [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

Vous verrez quelque chose comme ceci :

<img src="/img/tutorial/security/image01.png">

/// check | Bouton « Authorize » !

                result.projectSettingsPath = shellContext.projectSettingsPath;
                result.userSettingsPath = shellContext.userSettingsPath;
                result.interactive = shellContext.interactive;
                result.localRepositoryPath = shellContext.localRepositoryPath;
                result.effectiveSettings = shellContext.effectiveSettings;

<img src="/img/tutorial/path-params/image01.png">

/// check | Vérifications

À nouveau, simplement avec cette même déclaration de type Python, **FastAPI** vous fournit une documentation interactive automatique (intégrant Swagger UI).

Remarquez que le paramètre de chemin est déclaré comme entier.

///

 *
 * <p>Key features include:</p>
 * <ul>
 *   <li>Project upgrade capabilities</li>
 *   <li>Dependency version management</li>
 *   <li>Configuration migration</li>
 *   <li>Interactive upgrade workflows</li>
 * </ul>
 *
 * @see org.apache.maven.api.cli.Tools#MVNUP_CMD
 * @see org.apache.maven.api.cli.Tools#MVNUP_NAME
 * @since 4.0.0
 */

You will see the JSON response as:

```JSON
{"message": "Hello World"}
```

### Interactive API docs { #interactive-api-docs }

Now go to [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

You will see the automatic interactive API documentation (provided by [Swagger UI](https://github.com/swagger-api/swagger-ui)):

And when you open your browser at [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs), you will see an automatic, interactive, API documentation like:

<img src="/img/tutorial/path-params/image01.png">

/// check

Again, just with that same Python type declaration, **FastAPI** gives you automatic, interactive documentation (integrating Swagger UI).

Notice that the path parameter is declared to be an integer.

///

Vous verrez la réponse JSON suivante :

```JSON
{"message": "Hello World"}
```

### Documentation interactive de l’API { #interactive-api-docs }

Allez maintenant sur [http://127.0.0.1:8000/docs](http://127.0.0.1:8000/docs).

Vous verrez la documentation interactive de l’API générée automatiquement (fournie par [Swagger UI](https://github.com/swagger-api/swagger-ui)) :