///

Vous pouvez étendre le schéma OpenAPI pour une *opération de chemin* en utilisant le paramètre `openapi_extra`.

### Extensions OpenAPI

Cet `openapi_extra` peut être utile, par exemple, pour déclarer [OpenAPI Extensions](https://github.com/OAI/OpenAPI-Specification/blob/main/versions/3.0.3.md#specificationExtensions) :

```Python hl_lines="6"

    response = client.post(
        "/users", json={"email": "johndoe@example.com", "password": "secret"}
    )
    assert response.json() == {"email": "johndoe@example.com"}


def test_filter_second_level_model():
    response = client.get("/pets/1")
    assert response.json() == {
        "name": "Nibbler",
        "owner": {"email": "johndoe@example.com"},
    }


def test_list_of_models():

                json_schema_extra={"example": {"data": "Data in schema_extra"}}
            )
        else:

            class Config:
                schema_extra = {"example": {"data": "Data in schema_extra"}}

    @app.post("/schema_extra/")
    def schema_extra(item: Item):
        return item

    with pytest.warns(DeprecationWarning):

        @app.post("/example/")

		{[]string{"http://localhost:9000/d1", "http://localhost:9000/d2", "http://example.org:9000/d3", "http://example.com:9000/d4"}, []string{"example.com:9000", "example.org:9000", "localhost:9000"}, "localhost:9000"},
		{[]string{"http://localhost:9000/d1", "http://localhost:10000/d2", "http://example.org:9000/d3", "http://example.com:9000/d4"}, []string{"example.com:9000", "example.org:9000", "localhost:10000", "localhost:9000"}, "localhost:9000"},

    response = client.post(
        "/users", json={"email": "johndoe@example.com", "password": "secret"}
    )
    assert response.json() == {"email": "johndoe@example.com"}


def test_filter_second_level_model():
    response = client.get("/pets/1")
    assert response.json() == {
        "name": "Nibbler",
        "owner": {"email": "johndoe@example.com"},
    }


def test_list_of_models():

http://www.example.com/
http://www.example.com/catalog?item=12&desc=vacation_hawaii
http://www.example.com/catalog?item=73&desc=vacation_new_zealand
http://www.example.com/catalog?item=74&desc=vacation_newfoundland

Dans l'exemple précédent, les opérations de routage attendaient un body JSON avec les attributs d'un `Item`, par exemple :

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

Mais vous pouvez également déclarer plusieurs paramètres provenant de body, par exemple `item` et `user` simultanément :

//// tab | Python 3.10+

```Python hl_lines="20"

sitemap1.xml http://www.example.com/ 2005-01-01 monthly 0.8 http://www.example.com/catalog?item=12&desc=vacation_hawaii weekly http://www.example.com/catalog?item=73&desc=vacation_new_zealand 2004-12-23 weekly http://www.example.com/catalog?item=74&desc=vacation_newfoundland 2004-12-23T18:00:15+00:00 0.3 http://www.example.com/catalog?item=83&desc=vacation_usa 2004-11-23...

        url = "http://example.com/";
        exp = "http://example.com/";
        assertEquals(exp, transformer.decodeUrlAsName(url, false));

        url = "http://example.com/index.html";
        exp = "http://example.com/index.html";
        assertEquals(exp, transformer.decodeUrlAsName(url, false));

        url = "http://example.com/" + encodeUrl("テスト ") + ".html";

   <url>
      <loc>http://www.example.com/</loc>
      <lastmod>2005-01-01</lastmod>
      <changefreq>monthly</changefreq>
      <priority>0.8</priority>
   </url>
   <url>
      <loc>http://www.example.com/catalog?item=12&amp;desc=vacation_hawaii</loc>
      <changefreq>weekly</changefreq>
   </url>
   <url>
      <loc>http://www.example.com/catalog?item=73&amp;desc=vacation_new_zealand</loc>