Und auch nachdem die `response` generiert wurde, bevor sie zurückgegeben wird.

Sie könnten beispielsweise einen benutzerdefinierten Header `X-Process-Time` hinzufügen, der die Zeit in Sekunden enthält, die benötigt wurde, um den Request zu verarbeiten und eine Response zu generieren:

{* ../../docs_src/middleware/tutorial001_py310.py hl[10,12:13] *}

/// tip | Tipp

		go globalBackgroundHealRoutine.AddWorker(ctx, objAPI, bgSeq)
	}

	globalBackgroundHealState.LaunchNewHealSequence(bgSeq, objAPI)
}

// Wait for heal requests and process them
func (h *healRoutine) AddWorker(ctx context.Context, objAPI ObjectLayer, bgSeq *healSequence) {
	for {
		select {
		case task, ok := <-h.tasks:
			if !ok {
				return
			}

# OpenAPI erweitern { #extending-openapi }

Es gibt einige Fälle, in denen Sie das generierte OpenAPI-Schema ändern müssen.

In diesem Abschnitt erfahren Sie, wie.

## Der normale Vorgang { #the-normal-process }

Der normale (Standard-)Prozess ist wie folgt.

Eine `FastAPI`-Anwendung (Instanz) verfügt über eine `.openapi()`-Methode, von der erwartet wird, dass sie das OpenAPI-Schema zurückgibt.

 *  Fix: Immediately update the connection's flow control window instead of waiting for the
    receiving stream to process it.

    This change may increase OkHttp's memory use for applications that make many concurrent HTTP
    calls and that can receive data faster than they can process it. Previously, OkHttp limited
    HTTP/2 to 16 MiB of unacknowledged data per connection. With this fix there is a limit of 16 MiB

     */
    @Required
    public String url;

    /**
     * The name of the crawler thread that encountered the failure.
     * This is a required field used for identifying which crawler process failed.
     */
    @Required
    public String threadName;

    /**
     * The name or type of the error that occurred.
     * This field provides a categorization of the failure type.
     */

   * Use this for EXPLICIT tag types:
   *
   * ```
   * [5] EXPLICIT UTF8String
   * ```
   *
   * @param forceConstructed non-null to set the constructed bit to the specified value, even if the
   *     writing process sets something else. This is used to encode SEQUENCES in values that are
   *     declared to have non-constructed values, like OCTET STRING values.
   */

        @Override
        protected HashCode makeHash() {
          return HashCode.fromBytes(out.toByteArray());
        }

        @Override
        protected void process(ByteBuffer bb) {
          while (bb.hasRemaining()) {
            out.write(bb.get());
          }
        }

        @Override
        protected void processRemaining(ByteBuffer bb) {

            final Class<?> implType = getClassForImplementationHint(type, configuration, loader);
            if (null == value && implType.isInterface() && configuration.getChildCount() == 0) {
                return null; // nothing to process
            }
            final Object bean = instantiateObject(implType);
            if (null == value) {
                processConfiguration(lookup, bean, loader, configuration, evaluator, listener);
            } else {

Також ви можете додати код, який буде виконуватися після того, як `response` буде згенеровано, перед тим як її повернути.

Наприклад, ви можете додати власний заголовок `X-Process-Time`, який міститиме час у секундах, який витратився на обробку запиту та генерацію відповіді:

{* ../../docs_src/middleware/tutorial001_py310.py hl[10,12:13] *}

/// tip

# 扩展 OpenAPI { #extending-openapi }

在某些情况下，你可能需要修改生成的 OpenAPI 架构（schema）。

本节将介绍如何实现。

## 常规流程 { #the-normal-process }

常规（默认）流程如下。

`FastAPI` 应用（实例）有一个 `.openapi()` 方法，预期返回 OpenAPI 架构。

在创建应用对象时，会注册一个用于 `/openapi.json`（或你在 `openapi_url` 中设置的路径）的路径操作。

它只会返回一个 JSON 响应，内容是应用 `.openapi()` 方法的结果。

默认情况下，`.openapi()` 方法会检查属性 `.openapi_schema` 是否已有内容，若有则直接返回。

如果没有，则使用 `fastapi.openapi.utils.get_openapi` 工具函数生成。