## Integrierte Middleware

**FastAPI** enthält mehrere Middlewares für gängige Anwendungsfälle. Wir werden als Nächstes sehen, wie man sie verwendet.

/// note | Technische Details

Für die nächsten Beispiele könnten Sie auch `from starlette.middleware.something import SomethingMiddleware` verwenden.

	return int(sum64 % uint64(cardinality))
}

// hashOrder - hashes input key to return consistent
// hashed integer slice. Returned integer order is salted
// with an input key. This results in consistent order.
// NOTE: collisions are fine, we are not looking for uniqueness
// in the slices returned.
func hashOrder(key string, cardinality int) []int {
	if cardinality <= 0 {
		// Returns an empty int slice for cardinality < 0.
		return nil

  - If there are any errors, read the error and fix your code.
  - IMPORTANT NOTE: if the first import fails, you have to select and apply `Synchronization disabled`, then repeat the step above.
    Otherwise, TeamCity complains "Can't find the previous revision, please commit current settings first".

    `com.google.guava:failureaccess:1.0.3`. It also has
    [some annotation-only dependencies][guava-deps], which we discuss in more
    detail at that link.

4.  Serialized forms of ALL objects are subject to change unless noted
    otherwise. Do not persist these and assume they can be read by a future
    version of the library.

5.  Our classes are not designed to protect against a malicious caller. You

  public open fun setFailFast(failFastResponse: MockResponse?) {
    this.failFastResponse = failFastResponse
  }

  private companion object {
    /**
     * Enqueued on shutdown to release threads waiting on [dispatch]. Note that this response
     * isn't transmitted because the connection is closed before this response is returned.
     */
    private val DEAD_LETTER = MockResponse(code = HTTP_UNAVAILABLE)

     */
    public InterpolatorException(String message) {
        super(message);
    }

    /**
     * Constructs a new InterpolatorException with the specified detail message and cause.
     *
     * <p>Note that the detail message associated with {@code cause} is <i>not</i>
     * automatically incorporated in this exception's detail message.</p>
     *
     * @param message the detail message (which is saved for later retrieval

{* ../../docs_src/response_headers/tutorial001.py hl[10:12] *}

/// note | Technische Details

Sie können auch `from starlette.responses import Response` oder `from starlette.responses import JSONResponse` verwenden.

///

## `Request`-Dokumentation

Weitere Details zum <a href="https://www.starlette.io/requests/" class="external-link" target="_blank">`Request`-Objekt finden Sie in der offiziellen Starlette-Dokumentation</a>.

/// note | Technische Details

Sie können auch `from starlette.requests import Request` verwenden.

**FastAPI** stellt es direkt zur Verfügung, als Komfort für Sie, den Entwickler. Es kommt aber direkt von Starlette.

Вы можете использовать функцию `Field` с атрибутами модели:

{* ../../docs_src/body_fields/tutorial001_py310.py hl[9:12] *}

Функция `Field` работает так же, как `Query`, `Path` и `Body`, у неё такие же параметры и т.д.

/// note | Технические детали

На самом деле, `Query`, `Path` и другие функции, которые вы увидите в дальнейшем, создают объекты подклассов общего класса `Param`, который сам по себе является подклассом `FieldInfo` из Pydantic.

 *    or after it ends.
 *
 *  * **A public key.** This cryptographic key is used for asymmetric encryption digital signatures.
 *    Note that the private key is not a part of the certificate!
 *
 *  * **A signature issued by another certificate's private key.** This mechanism allows a trusted