// cookie
        if (cookieSpec != null) {
            requestConfigBuilder.setCookieSpec(cookieSpec);
        }

        // cookie store
        httpClientBuilder.setDefaultCookieStore(cookieStore);
        if (cookieStore != null) {
            final Cookie[] cookies = getInitParameter(COOKIES_PROPERTY, new Cookie[0], Cookie[].class);
            for (final Cookie cookie : cookies) {

}

// ErrNoCookie is returned by Request's Cookie method when a cookie is not found.
var ErrNoCookie = errors.New("http: named cookie not present")

// Cookie returns the named cookie provided in the request or
// [ErrNoCookie] if not found.
// If multiple cookies match the given name, only one cookie will
// be returned.
func (r *Request) Cookie(name string) (*Cookie, error) {
	if name == "" {
		return nil, ErrNoCookie
	}

		if !found {
			cookiePath = "/"
		}
		// The cookie is using TTL=0, which means they are session cookies (browser is not saving the cookie, expires
		// when the tab is closed). Most pods don't have ability (or code) to actually persist cookies, and expiration
		// is better handled in the cookie content (and consistently in the header value - which doesn't have
		// persistence semantics).

你可以在你的*路径操作函数*中声明一个`Response`类型的参数（就像你可以为cookies做的那样）。

然后你可以在这个*临时*响应对象中设置头部。
```Python hl_lines="1  7-8"
{!../../../docs_src/response_headers/tutorial002.py!}
```

然后你可以像平常一样返回任何你需要的对象（例如一个`dict`或者一个数据库模型）。如果你声明了一个`response_model`，它仍然会被用来过滤和转换你返回的对象。

**FastAPI**将使用这个临时响应来提取头部（也包括cookies和状态码），并将它们放入包含你返回的值的最终响应中，该响应由任何`response_model`过滤。

你也可以在依赖项中声明`Response`参数，并在其中设置头部（和cookies）。

## 直接返回 `Response`

[Cookie] now preserves double quotes surrounding a cookie value.
The new [Cookie.Quoted] field indicates whether the [Cookie.Value]

* Ключи API в:
    * Заголовках.
    * Параметрах запросов.
    * Cookies и т.п.

Вдобавок все функции безопасности от Starlette (включая **сессионные cookies**).

Все инструменты и компоненты спроектированы для многократного использования и легко интегрируются с вашими системами, хранилищами данных, реляционными и NoSQL базами данных и т. д.

* API keys in:
    * Headers.
    * Query parameters.
    * Cookies, etc.

Plus all the security features from Starlette (including **session cookies**).

All built as reusable tools and components that are easy to integrate with your systems, data stores, relational and NoSQL databases, etc.

### Dependency Injection

It includes:

* `Query()`
* `Path()`
* `Body()`
* `Cookie()`
* `Header()`
* `Form()`
* `File()`

You can import them all directly from `fastapi`:

```python
from fastapi import Body, Cookie, File, Form, Header, Path, Query
```

::: fastapi.Query

::: fastapi.Path

::: fastapi.Body

::: fastapi.Cookie

::: fastapi.Header

::: fastapi.Form

* Chaves de API em:
    * Headers.
    * parâmetros da Query.
    * Cookies etc.

Além disso, todos os recursos de seguranças do Starlette (incluindo **cookies de sessão**).

from .exceptions import HTTPException as HTTPException
from .exceptions import WebSocketException as WebSocketException
from .param_functions import Body as Body
from .param_functions import Cookie as Cookie
from .param_functions import Depends as Depends
from .param_functions import File as File
from .param_functions import Form as Form
from .param_functions import Header as Header
from .param_functions import Path as Path