* unprivileged user may return a resource accessible only to a privileged user making a similar
   * call. To prevent this problem, create a key object that includes all values that affect the
   * result of the query. Or use {@code LoadingCache.get(K)}, which lacks the ability to refer to
   * state other than that in the key.
   *
   * <p><b>Warning:</b> as with {@link CacheLoader#load}, {@code loader} <b>must not</b> return

所有这些消息都将使用同一个 WebSocket 连

接。

## 使用 `Depends` 和其他依赖项

在 WebSocket 端点中，您可以从 `fastapi` 导入并使用以下内容：

* `Depends`
* `Security`
* `Cookie`
* `Header`
* `Path`
* `Query`

它们的工作方式与其他 FastAPI 端点/ *路径操作* 相同：

//// tab | Python 3.10+

```Python hl_lines="68-69  82"
{!> ../../docs_src/websockets/tutorial002_an_py310.py!}
```

////

//// tab | Python 3.9+

{!> ../../docs_src/background_tasks/tutorial002.py!}
```

////

В этом примере сообщения будут записаны в `log.txt` *после* того, как ответ сервера был отправлен.

Если бы в запрос был передан query-параметр `q`, он бы первыми записался в `log.txt` фоновой задачей (потому что вызывается в зависимости `get_query`).

После другая фоновая задача, которая была сгенерирована в функции, запишет сообщение из параметра `email`.

OpenAPI definiert die folgenden Sicherheitsschemas:

* `apiKey`: ein anwendungsspezifischer Schlüssel, der stammen kann von:
    * Einem Query-Parameter.
    * Einem Header.
    * Einem Cookie.
* `http`: Standard-HTTP-Authentifizierungssysteme, einschließlich:
    * `bearer`: ein Header `Authorization` mit dem Wert `Bearer` plus einem Token. Dies wird von OAuth2 geerbt.

OpenAPI defines the following security schemes:

* `apiKey`: an application specific key that can come from:
    * A query parameter.
    * A header.
    * A cookie.
* `http`: standard HTTP authentication systems, including:
    * `bearer`: a header `Authorization` with a value of `Bearer ` plus a token. This is inherited from OAuth2.

 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
abstract class AbstractMultiset<E extends @Nullable Object> extends AbstractCollection<E>
    implements Multiset<E> {
  // Query Operations

  @Override
  public boolean isEmpty() {
    return entrySet().isEmpty();
  }

  @Override
  public boolean contains(@CheckForNull Object element) {
    return count(element) > 0;
  }

///

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

////

### Declarando a dependência, no "dependente"

Da mesma forma que você utiliza `Body`, `Query`, etc. Como parâmetros de sua *função de operação de rota*, utilize `Depends` com um novo parâmetro:

//// tab | Python 3.10+

```Python hl_lines="13  18"
{!> ../../docs_src/dependencies/tutorial001_an_py310.py!}
```

import org.opensearch.action.DocWriteRequest.OpType;
import org.opensearch.action.search.SearchRequestBuilder;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.search.SearchHits;

import jakarta.annotation.PostConstruct;

# بینچ مارکس
انڈیپنڈنٹ ٹیک امپور بینچ مارک **FASTAPI** Uvicorn کے تحت چلنے والی ایپلی کیشنز کو <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank"> ایک تیز رفتار Python فریم ورک میں سے ایک </a> ، صرف Starlette اور Uvicorn کے نیچے ( FASTAPI  کے ذریعہ اندرونی طور پر استعمال کیا جاتا ہے ) (*)

	// Enable console logging for remote client.
	if !sys.HasLogListeners() {
		logger.AddSystemTarget(GlobalContext, sys)
	}

	cnt := 0
	// by default send all console logs in the ring buffer unless node or limit query parameters
	// are set.
	var lastN []log.Info
	if last > defaultLogBufferCount || last <= 0 {
		last = defaultLogBufferCount
	}

	lastN = make([]log.Info, last)
	sys.RLock()