The response answers the request with a code (like 200 for success or 404 for not found), headers, and its own optional body.

## Rewriting Requests

When you provide OkHttp with an HTTP request, you’re describing the request at a high-level: _“fetch me this URL with these headers.”_ For correctness and efficiency, OkHttp rewrites your request before transmitting it.

Die Middleware antwortet auf zwei besondere Arten von HTTP-Requests ...

### CORS-Preflight-Requests { #cors-preflight-requests }

Dies sind alle `OPTIONS`-Requests mit `Origin`- und `Access-Control-Request-Method`-Headern.

  /**
   * The interval between two unit requests, at our stable rate. E.g., a stable rate of 5 permits
   * per second has a stable interval of 200ms.
   */
  double stableIntervalMicros;

  /**
   * The time when the next request (no matter its size) will be granted. After granting a request,
   * this is pushed further in the future. Large requests push this further than small requests.
   */

*경로 작동 함수* 매개변수를 `Request` 타입으로 선언하면 **FastAPI**가 해당 매개변수에 `Request` 객체를 전달하는 것을 알게 됩니다.

/// tip | 팁

이 경우, 요청 매개변수와 함께 경로 매개변수를 선언한 것을 볼 수 있습니다.

따라서, 경로 매개변수는 추출되고 검증되며 지정된 타입으로 변환되고 OpenAPI로 주석이 추가됩니다.

이와 같은 방식으로, 다른 매개변수들을 평소처럼 선언하면서, 부가적으로 `Request`도 가져올 수 있습니다.

///

## `Request` 설명서

requests_max                    (number)    set the maximum number of concurrent requests (default: 'auto')
cluster_deadline                (duration)  set the deadline for cluster readiness check (default: '10s')
cors_allow_origin               (csv)       set comma separated list of origins allowed for CORS requests (default: '*')

Das bedeutet, dass anstelle des normalen Prozesses, bei dem Ihre Benutzer Requests an Ihre API senden, **Ihre API** (oder Ihre App) **Requests an deren System** (an deren API, deren App) senden könnte.

///

## `HTTPSRedirectMiddleware` { #httpsredirectmiddleware }

Erzwingt, dass alle eingehenden <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Requests</abbr> entweder `https` oder `wss` sein müssen.

Alle eingehenden Requests an `http` oder `ws` werden stattdessen an das sichere Schema umgeleitet.

{* ../../docs_src/advanced_middleware/tutorial001_py39.py hl[2,6] *}

    /**
     * Map of pending requests to their corresponding responses.
     */
    protected HashMap response_map = new HashMap(4);

    /**
     * Creates a key for the specified request for response matching.
     *
     * @param request the request to create a key for
     * @throws IOException if an I/O error occurs
     */
    protected abstract void makeKey(Request request) throws IOException;

    /**

     */
    @Override
    public void destroy() {
        // nothing
    }

    /**
     * Filters HTTP requests and processes them through appropriate web API managers.
     *
     * @param request The servlet request
     * @param response The servlet response
     * @param chain The filter chain
     * @throws IOException If an I/O error occurs

      this.method = "GET"
      this.headers = Headers.Builder()
    }

    internal constructor(request: Request) {
      this.url = request.url
      this.method = request.method
      this.body = request.body
      this.tags = request.tags
      this.headers = request.headers.newBuilder()
      this.cacheUrlOverride = request.cacheUrlOverride
    }

    open fun url(url: HttpUrl): Builder =
      apply {