You can declare a parameter of type `Response` in your *path operation function* (as you can do for cookies).

And then you can set headers in that *temporal* response object.

{* ../../docs_src/response_headers/tutorial002_py310.py hl[1, 7:8] *}

And then you can return any object you need, as you normally would (a `dict`, a database model, etc).

{* ../../docs_src/configure_swagger_ui/tutorial001_py310.py hl[3] *}

...在此之后，Swagger UI 将不会高亮代码:

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

## 改变主题 { #change-the-theme }

同样地，你也可以通过设置键 `"syntaxHighlight.theme"` 来设置语法高亮主题（注意中间有一个点）：

{* ../../docs_src/configure_swagger_ui/tutorial002_py310.py hl[3] *}

这个配置会改变语法高亮主题：

## 摘要與描述 { #summary-and-description }

你可以加入 `summary` 與 `description`：

{* ../../docs_src/path_operation_configuration/tutorial003_py310.py hl[17:18] *}

## 從 docstring 取得描述 { #description-from-docstring }

由於描述常常較長、跨越多行，你可以在函式的 <dfn title="用於文件的多行字串，作為函式內的第一個運算式（不賦值給任何變數）">文件字串（docstring）</dfn> 中宣告「路徑操作」的描述，**FastAPI** 會從那裡讀取。

{* ../../docs_src/advanced_middleware/tutorial001_py310.py hl[2,6] *}

## `TrustedHostMiddleware` { #trustedhostmiddleware }

Enforces that all incoming requests have a correctly set `Host` header, in order to guard against HTTP Host Header attacks.

{* ../../docs_src/advanced_middleware/tutorial002_py310.py hl[2,6:8] *}

The following arguments are supported:

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[4,22] *}

Each yielded item is encoded as JSON and sent in the `data:` field of an SSE event.

If you declare the return type as `AsyncIterable[Item]`, FastAPI will use it to **validate**, **document**, and **serialize** the data using Pydantic.

{* ../../docs_src/server_sent_events/tutorial001_py310.py ln[1:25] hl[10:12,23] *}

/// tip

///

## Dataclasses in `response_model` { #dataclasses-in-response-model }

You can also use `dataclasses` in the `response_model` parameter:

{* ../../docs_src/dataclasses_/tutorial002_py310.py hl[1,6:12,18] *}

The dataclass will be automatically converted to a Pydantic dataclass.

This way, its schema will show up in the API docs user interface:

<img src="/img/tutorial/dataclasses/image01.png">

# 响应Cookies { #response-cookies }

## 使用 `Response` 参数 { #use-a-response-parameter }

你可以在 *路径操作函数* 中定义一个类型为 `Response` 的参数，这样你就可以在这个临时响应对象中设置cookie了。

{* ../../docs_src/response_cookies/tutorial002_py310.py hl[1, 8:9] *}

而且你还可以根据你的需要响应不同的对象，比如常用的 `dict`，数据库model等。

如果你定义了 `response_model`，程序会自动根据`response_model`来过滤和转换你响应的对象。

**FastAPI** 会使用这个 *临时* 响应对象去装在这些cookies信息 (同样还有headers和状态码等信息), 最终会将这些信息和通过`response_model`转化过的数据合并到最终的响应里。

Let's see the previous example again:

{* ../../docs_src/response_status_code/tutorial001_py310.py hl[6] *}

`201` is the status code for "Created".

But you don't have to memorize what each of these codes mean.

You can use the convenience variables from `fastapi.status`.

{* ../../docs_src/response_status_code/tutorial002_py310.py hl[1,6] *}

{* ../../docs_src/path_operation_advanced_configuration/tutorial001_py310.py hl[6] *}

### *경로 처리 함수* 이름을 operationId로 사용하기 { #using-the-path-operation-function-name-as-the-operationid }

API의 함수 이름을 `operationId`로 사용하고 싶다면, 모든 API를 순회하면서 `APIRoute.name`을 사용해 각 *경로 처리*의 `operation_id`를 덮어쓸 수 있습니다.

모든 *경로 처리*를 추가한 뒤에 수행해야 합니다.

{* ../../docs_src/path_operation_advanced_configuration/tutorial002_py310.py hl[2, 12:21, 24] *}

/// tip | 팁

You should do it after adding all your *path operations*.

{* ../../docs_src/path_operation_advanced_configuration/tutorial002_py310.py hl[2, 12:21, 24] *}

/// tip

If you manually call `app.openapi()`, you should update the `operationId`s before that.

///

/// warning