# Advanced User Guide

## Additional Features

The main [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} should be enough to give you a tour through all the main features of **FastAPI**.

In the next sections you will see other options, configurations, and additional features.

!!! tip
    The next sections are **not necessarily "advanced"**.

    And it's possible that for your use case, the solution is in one of them.

"docs_src/dependencies/tutorial010.py" = ["F821"]
"docs_src/custom_response/tutorial007.py" = ["B007"]
"docs_src/dataclasses/tutorial003.py" = ["I001"]
"docs_src/path_operation_advanced_configuration/tutorial007.py" = ["B904"]
"docs_src/path_operation_advanced_configuration/tutorial007_pv1.py" = ["B904"]
"docs_src/custom_request_and_route/tutorial002.py" = ["B904"]
"docs_src/dependencies/tutorial008_an.py" = ["F821"]

    Using a relative URL is important to make sure your application keeps working even in an advanced use case like [Behind a Proxy](../../advanced/behind-a-proxy.md){.internal-link target=_blank}.

```Python hl_lines="10  12-13"
{!../../../docs_src/middleware/tutorial001.py!}
```

## 다른 미들웨어

미들웨어에 대한 더 많은 정보는 [숙련된 사용자 안내서: 향상된 미들웨어](../advanced/middleware.md){.internal-link target=\_blank}에서 확인할 수 있습니다.

    """
    JSON response using the high-performance ujson library to serialize data to JSON.

    Read more about it in the
    [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/).
    """

    def render(self, content: Any) -> bytes:
        assert ujson is not None, "ujson must be installed to use UJSONResponse"

    **FastAPI** provides the same `starlette.status` as `fastapi.status` just as a convenience for you, the developer. But it comes directly from Starlette.

## Changing the default

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：

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

## `TrustedHostMiddleware`

Erzwingt, dass alle eingehenden Requests einen korrekt gesetzten `Host`-Header haben, um sich vor HTTP-Host-Header-Angriffen zu schützen.

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

Die folgenden Argumente werden unterstützt:

## 🚚 🛃 📨 💪 🔢

➡️ 👀 ❔ ⚒ ⚙️ 🛃 `Request` 🏿 🗜 🗜 📨.

& `APIRoute` 🏿 ⚙️ 👈 🛃 📨 🎓.

### ✍ 🛃 `GzipRequest` 🎓

!!! tip
    👉 🧸 🖼 🎦 ❔ ⚫️ 👷, 🚥 👆 💪 🗜 🐕‍🦺, 👆 💪 ⚙️ 🚚 [`GzipMiddleware`](../advanced/middleware.md#gzipmiddleware){.internal-link target=_blank}.

🥇, 👥 ✍ `GzipRequest` 🎓, ❔ 🔜 📁 `Request.body()` 👩‍🔬 🗜 💪 🔍 ☑ 🎚.

🚥 📤 🙅‍♂ `gzip` 🎚, ⚫️ 🔜 🚫 🔄 🗜 💪.

👈 🌌, 🎏 🛣 🎓 💪 🍵 🗜 🗜 ⚖️ 🗜 📨.

    If you don't want to have those optional dependencies, you can instead install `pip install fastapi-slim`.

## Advanced User Guide

There is also an **Advanced User Guide** that you can read later after this **Tutorial - User guide**.

The **Advanced User Guide**, builds on this, uses the same concepts, and teaches you some extra features.