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  1. tests/test_additional_properties_bool.py

    
    @app.post("/")
    async def post(
        foo: Union[Foo, None] = None,
    ):
        return foo
    
    
    client = TestClient(app)
    
    
    def test_call_invalid():
        response = client.post("/", json={"foo": {"bar": "baz"}})
        assert response.status_code == 422
    
    
    def test_call_valid():
        response = client.post("/", json={})
        assert response.status_code == 200
        assert response.json() == {}
    
    
    Python
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  2. docs/zh/docs/advanced/advanced-dependencies.md

    假设要创建校验查询参数 `q` 是否包含固定内容的依赖项。
    
    但此处要把待检验的固定内容定义为参数。
    
    ## **可调用**实例
    
    Python 可以把类实例变为**可调用项**。
    
    这里说的不是类本身(类本就是可调用项),而是类实例。
    
    为此,需要声明 `__call__` 方法:
    
    ```Python hl_lines="10"
    {!../../../docs_src/dependencies/tutorial011.py!}
    ```
    
    本例中,**FastAPI**  使用 `__call__` 检查附加参数及子依赖项,稍后,还要调用它向*路径操作函数*传递值。
    
    ## 参数化实例
    
    接下来,使用 `__init__` 声明用于**参数化**依赖项的实例参数:
    
    ```Python hl_lines="7"
    Plain Text
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  3. fastapi/security/http.py

        ):
            self.model = HTTPBaseModel(scheme=scheme, description=description)
            self.scheme_name = scheme_name or self.__class__.__name__
            self.auto_error = auto_error
    
        async def __call__(
            self, request: Request
        ) -> Optional[HTTPAuthorizationCredentials]:
            authorization = request.headers.get("Authorization")
            scheme, credentials = get_authorization_scheme_param(authorization)
    Python
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  4. docs/em/docs/advanced/advanced-dependencies.md

    ✋️ 👥 💚 💪 🔗 👈 🔧 🎚.
    
    ##  "🇧🇲" 👐
    
    🐍 📤 🌌 ⚒ 👐 🎓 "🇧🇲".
    
    🚫 🎓 ⚫️ (❔ ⏪ 🇧🇲), ✋️ 👐 👈 🎓.
    
    👈, 👥 📣 👩‍🔬 `__call__`:
    
    ```Python hl_lines="10"
    {!../../../docs_src/dependencies/tutorial011.py!}
    ```
    
    👉 💼, 👉 `__call__` ⚫️❔ **FastAPI** 🔜 ⚙️ ✅ 🌖 🔢 & 🎧-🔗, & 👉 ⚫️❔ 🔜 🤙 🚶‍♀️ 💲 🔢 👆 *➡ 🛠️ 🔢* ⏪.
    
    ## 🔗 👐
    
    & 🔜, 👥 💪 ⚙️ `__init__` 📣 🔢 👐 👈 👥 💪 ⚙️ "🔗" 🔗:
    Plain Text
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  5. fastapi/param_functions.py

        dependency: Annotated[
            Optional[Callable[..., Any]],
            Doc(
                """
                A "dependable" callable (like a function).
    
                Don't call it directly, FastAPI will call it for you, just pass the object
                directly.
                """
            ),
        ] = None,
        *,
        use_cache: Annotated[
            bool,
            Doc(
                """
    Python
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  6. fastapi/security/oauth2.py

                flows=cast(OAuthFlowsModel, flows), description=description
            )
            self.scheme_name = scheme_name or self.__class__.__name__
            self.auto_error = auto_error
    
        async def __call__(self, request: Request) -> Optional[str]:
            authorization = request.headers.get("Authorization")
            if not authorization:
                if self.auto_error:
                    raise HTTPException(
    Python
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  7. docs/en/docs/tutorial/middleware.md

    ## Create a middleware
    
    To create a middleware you use the decorator `@app.middleware("http")` on top of a function.
    
    The middleware function receives:
    
    * The `request`.
    * A function `call_next` that will receive the `request` as a parameter.
        * This function will pass the `request` to the corresponding *path operation*.
        * Then it returns the `response` generated by the corresponding *path operation*.
    Plain Text
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  8. docs/de/docs/tutorial/middleware.md

    ## Erstellung einer Middleware
    
    Um eine Middleware zu erstellen, verwenden Sie den Dekorator `@app.middleware("http")` über einer Funktion.
    
    Die Middleware-Funktion erhält:
    
    * Den `request`.
    * Eine Funktion `call_next`, die den `request` als Parameter erhält.
        * Diese Funktion gibt den `request` an die entsprechende *Pfadoperation* weiter.
        * Dann gibt es die von der entsprechenden *Pfadoperation* generierte `response` zurück.
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  9. docs/ja/docs/tutorial/middleware.md

        バックグラウンドタスク (後述) がある場合は、それらは全てのミドルウェアの *後に* 実行されます。
    
    ## ミドルウェアの作成
    
    ミドルウェアを作成するには、関数の上部でデコレータ `@app.middleware("http")` を使用します。
    
    ミドルウェア関数は以下を受け取ります:
    
    * `request`。
    * パラメータとして `request` を受け取る関数 `call_next`。
        * この関数は、対応する*path operation*に `request` を渡します。
        * 次に、対応する*path operation*によって生成された `response` を返します。
    * その後、`response` を返す前にさらに `response` を変更することもできます。
    
    ```Python hl_lines="8-9  11  14"
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  10. docs/en/docs/tutorial/testing.md

        **FastAPI** provides the same `starlette.testclient` as `fastapi.testclient` just as a convenience for you, the developer. But it comes directly from Starlette.
    
    !!! tip
        If you want to call `async` functions in your tests apart from sending requests to your FastAPI application (e.g. asynchronous database functions), have a look at the [Async Tests](../advanced/async-tests.md){.internal-link target=_blank} in the advanced tutorial.
    Plain Text
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