🏆 👈, 🗄 `JSONResponse`, & 📨 👆 🎚 📤 🔗, ⚒ `status_code` 👈 👆 💚:

```Python hl_lines="4  25"
{!../../docs_src/additional_status_codes/tutorial001.py!}
```

/// warning

🕐❔ 👆 📨 `Response` 🔗, 💖 🖼 🔛, ⚫️ 🔜 📨 🔗.

⚫️ 🏆 🚫 🎻 ⏮️ 🏷, ♒️.

⚒ 💭 ⚫️ ✔️ 📊 👆 💚 ⚫️ ✔️, & 👈 💲 ☑ 🎻 (🚥 👆 ⚙️ `JSONResponse`).

///

/// note | "📡 ℹ"

from fastapi.testclient import TestClient

from docs_src.extending_openapi.tutorial001 import app

client = TestClient(app)


def test():
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"name": "Foo"}]


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

    # ---------------------
    context.close()
    browser.close()


process = subprocess.Popen(
    ["fastapi", "run", "docs_src/cookie_param_models/tutorial001.py"]
)
try:
    for _ in range(3):
        try:
            response = httpx.get("http://localhost:8000/docs")
        except httpx.ConnectError:
            time.sleep(1)
            break

<img src="/img/tutorial/extending-openapi/image02.png">

Sie können sie jedoch deaktivieren, indem Sie `syntaxHighlight` auf `False` setzen:

```Python hl_lines="3"
{!../../docs_src/configure_swagger_ui/tutorial001.py!}
```

... und dann zeigt die Swagger-Oberfläche die Syntaxhervorhebung nicht mehr an:

<img src="/img/tutorial/extending-openapi/image03.png">

## Das Theme ändern

强制所有传入请求必须是 `https` 或 `wss`。

任何传向 `http` 或 `ws` 的请求都会被重定向至安全方案。

```Python hl_lines="2  6"
{!../../docs_src/advanced_middleware/tutorial001.py!}
```

## `TrustedHostMiddleware`

强制所有传入请求都必须正确设置 `Host` 请求头，以防 HTTP 主机头攻击。

```Python hl_lines="2  6-8"
{!../../docs_src/advanced_middleware/tutorial002.py!}
```

支持以下参数：

* `allowed_hosts` - 允许的域名（主机名）列表。`*.example.com` 等通配符域名可以匹配子域名，或使用 `allowed_hosts=["*"]` 允许任意主机名，或省略中间件。

```Python hl_lines="17"
{!../../docs_src/path_params/tutorial005.py!}
```

#### *Enum-Wert* erhalten

Den tatsächlichen Wert (in diesem Fall ein `str`) erhalten Sie via `model_name.value`, oder generell, `ihr_enum_member.value`:

```Python hl_lines="20"
{!../../docs_src/path_params/tutorial005.py!}
```

/// tip | "Tipp"

///

```Python hl_lines="2 7"
{!../../docs_src/custom_response/tutorial001.py!}
```

/// tip | "小贴士"

`ORJSONResponse` 可能是一个更快的选择。

///

### `RedirectResponse`

返回 HTTP 重定向。默认情况下使用 307 状态代码（临时重定向）。

```Python hl_lines="2  9"
{!../../docs_src/custom_response/tutorial006.py!}
```

### `StreamingResponse`

采用异步生成器或普通生成器/迭代器，然后流式传输响应主体。

{!> ../../docs_src/extra_models/tutorial001_py310.py!}
```

////

//// tab | Python 3.8+

```Python hl_lines="9  11  16  22  24  29-30  33-35  40-41"
{!> ../../docs_src/extra_models/tutorial001.py!}
```

////

### `**user_in.dict()` 简介

#### Pydantic 的 `.dict()`

`user_in` 是类 `UserIn` 的 Pydantic 模型。

Pydantic 模型支持 `.dict()` 方法，能返回包含模型数据的**字典**。

因此，如果使用如下方式创建 Pydantic 对象 `user_in`：

from fastapi.testclient import TestClient

from docs_src.cors.tutorial001 import app


def test_cors():
    client = TestClient(app)
    # Test pre-flight response
    headers = {
        "Origin": "https://localhost.tiangolo.com",
        "Access-Control-Request-Method": "GET",
        "Access-Control-Request-Headers": "X-Example",
    }
    response = client.options("/", headers=headers)
    assert response.status_code == 200, response.text

from fastapi.testclient import TestClient

from docs_src.security.tutorial001 import app

client = TestClient(app)


def test_no_token():
    response = client.get("/items")
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Not authenticated"}
    assert response.headers["WWW-Authenticate"] == "Bearer"


def test_token():