This includes, for example:

* Email notifications sent after performing an action:
    * As connecting to an email server and sending an email tends to be "slow" (several seconds), you can return the response right away and send the email notification in the background.
* Processing data:

你也讀過如何處理 [使用 `CORSMiddleware` 的 CORS](../tutorial/cors.md)。

本節將示範如何使用其他中介軟體。

## 新增 ASGI 中介軟體 { #adding-asgi-middlewares }

由於 **FastAPI** 建立在 Starlette 上並實作了 <abbr title="Asynchronous Server Gateway Interface - 非同步伺服器閘道介面">ASGI</abbr> 規範，你可以使用任何 ASGI 中介軟體。

中介軟體不一定要為 FastAPI 或 Starlette 專門撰寫，只要遵循 ASGI 規範即可運作。

一般來說，ASGI 中介軟體是類別，預期第一個參數接收一個 ASGI 應用程式。

因此，在第三方 ASGI 中介軟體的文件中，通常會指示你這樣做：

```Python

Elbette bu optimal değil ve production için kullanmazsınız.

Production'da yukarıdaki seçeneklerden birini kullanırsınız.

Ama WebSockets'in server tarafına odaklanmak ve çalışan bir örnek görmek için en basit yol bu:

{* ../../docs_src/websockets_/tutorial001_py310.py hl[2,6:38,41:43] *}

## Bir `websocket` Oluşturun { #create-a-websocket }

	//
	// TODO(aead): refactor this API call. It does not account
	// for multiple endpoints.
	Version(context.Context) (string, error)

	// APIs returns a list of APIs supported by the KMS server.
	//
	// TODO(aead): remove this API call. It's hardly useful.
	APIs(context.Context) ([]madmin.KMSAPI, error)

	// Stat returns the current KMS status.
	Status(context.Context) (map[string]madmin.ItemState, error)

	if target.closeErr {
		return errors.New("close error")
	}

	return nil
}

func (target ExampleTarget) IsActive() (bool, error) {
	return false, errors.New("not connected to target server/service")
}

// FlushQueueStore - No-Op. Added for interface compatibility
func (target ExampleTarget) FlushQueueStore() error {
	return nil
}

func TestTargetListAdd(t *testing.T) {

{* ../../docs_src/dependencies/tutorial008c_an_py310.py hl[15:16] *}

В этом случае клиент получит *HTTP 500 Internal Server Error*, как и должно быть, поскольку мы не вызываем `HTTPException` или что-то подобное, но на сервере **не будет никаких логов** или других указаний на то, какая была ошибка. 😱

# Default-Stop:      0 1 6
# Short-Description: Starts fess
# Description:       Starts fess using start-stop-daemon
### END INIT INFO

PATH=/bin:/usr/bin:/sbin:/usr/sbin
NAME=fess
DESC="Fess Server"
DEFAULT=/etc/default/$NAME

if [ `id -u` -ne 0 ]; then
	echo "You need root privileges to run this script"
	exit 1
fi


. /lib/lsb/init-functions

if [ -r /etc/default/rcS ]; then

   *
   * @param collection the presumed-immutable collection
   * @param sampleElement an element of the same type as that contained by {@code collection}.
   *     {@code collection} may or may not have {@code sampleElement} as a member.
   */
  public static <E extends @Nullable Object> void assertCollectionIsUnmodifiable(
      Collection<E> collection, E sampleElement) {
    Collection<E> siblingCollection = new ArrayList<>();

  /**
   * Invoked when a result is served from the cache. The Response provided is the top level
   * Response and normal event sequences will not be received.
   *
   * This event will only be received when a Cache is configured for the client.
   */
  open fun cacheHit(
    call: Call,
    response: Response,
  ) {
  }

  /**
   * Invoked when a response will be served from the network. The Response will be

{% endfor -%}

### Золоті та срібні спонсори { #gold-and-silver-sponsors }

{% for sponsor in sponsors.gold -%}
<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>
{% endfor -%}
{%- for sponsor in sponsors.silver -%}
<a href="{{ sponsor.url }}" title="{{ sponsor.title }}"><img src="{{ sponsor.img }}" style="border-radius:15px"></a>