def custom_openapi():
    if app.openapi_schema:
        return app.openapi_schema
    openapi_schema = get_openapi(
        title="Custom title",
        version="2.5.0",
        summary="This is a very custom OpenAPI schema",
        description="Here's a longer description of the custom **OpenAPI** schema",
        routes=app.routes,
    )
    openapi_schema["info"]["x-logo"] = {

    pass


client = TestClient(app)


def test_openapi():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    openapi_schema = response.json()

    assert openapi_schema["components"]["schemas"]["MyModel"]["description"] == (
        "A model with a form feed character in the title.\n"

                }
            }
        },
    }
    openapi_schema = response.json()
    # Request again to test the custom cache
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text

from fastapi.testclient import TestClient

app = FastAPI()


@app.get("/a", responses={"hello": {"description": "Not a valid additional response"}})
async def a():
    pass  # pragma: no cover


openapi_schema = {
    "openapi": "3.1.0",
    "info": {"title": "FastAPI", "version": "0.1.0"},
    "paths": {
        "/a": {
            "get": {
                "responses": {

Ela apenas retorna uma resposta JSON com o resultado do método `.openapi()` da aplicação.

Por padrão, o que o método `.openapi()` faz é verificar se a propriedade `.openapi_schema` tem conteúdo e retorná-lo.

Se não tiver, ele gera o conteúdo usando a função utilitária em `fastapi.openapi.utils.get_openapi`.

E essa função `get_openapi()` recebe como parâmetros:

Она просто возвращает JSON-ответ с результатом вызова метода приложения `.openapi()`.

По умолчанию метод `.openapi()` проверяет свойство `.openapi_schema`: если в нём уже есть данные, возвращает их.

Если нет — генерирует схему с помощью вспомогательной функции `fastapi.openapi.utils.get_openapi`.

Функция `get_openapi()` принимает параметры:

It just returns a JSON response with the result of the application's `.openapi()` method.

By default, what the method `.openapi()` does is check the property `.openapi_schema` to see if it has contents and return them.

If it doesn't, it generates them using the utility function at `fastapi.openapi.utils.get_openapi`.

And that function `get_openapi()` receives as parameters:

@app.get("/hidden_query")
async def hidden_query(
    hidden_query: Optional[str] = Query(default=None, include_in_schema=False),
):
    return {"hidden_query": hidden_query}


openapi_schema = {
    "openapi": "3.1.0",
    "info": {"title": "FastAPI", "version": "0.1.0"},
    "paths": {
        "/hidden_cookie": {
            "get": {
                "summary": "Hidden Cookie",

Simplemente devuelve un response JSON con el resultado del método `.openapi()` de la aplicación.

Por defecto, lo que hace el método `.openapi()` es revisar la propiedad `.openapi_schema` para ver si tiene contenido y devolverlo.

Si no lo tiene, lo genera usando la función de utilidad en `fastapi.openapi.utils.get_openapi`.

Y esa función `get_openapi()` recibe como parámetros:

Standardmäßig überprüft die Methode `.openapi()` die Eigenschaft `.openapi_schema`, um zu sehen, ob diese Inhalt hat, und gibt diesen zurück.

Ist das nicht der Fall, wird der Inhalt mithilfe der Hilfsfunktion unter `fastapi.openapi.utils.get_openapi` generiert.