* *路径*可以包含 [OpenAPI 3 表达式](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)（详见下文），可以使用带参数的变量，以及发送至您的 API 的原始请求的部分

### 回调路径表达式 { #the-callback-path-expression }

回调*路径*支持包含发送给您的 API 的原始请求的部分的 [OpenAPI 3 表达式](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)。

本例中是 `str`：

```Python

  * Use optimized image based on Jessie by default
  * Add support for Ubuntu Wily
  * Master is configured with automatic restart-on-failure, via CloudWatch
  * Bootstrap reworked to be more similar to GCE; better supports reboots/restarts
  * Use an elastic IP for the master by default
  * Experimental support for node spot instances (set NODE\_SPOT\_PRICE=0.05)

#### GCE

* *path*에는 [OpenAPI 3 표현식](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)(자세한 내용은 아래 참고)이 포함될 수 있으며, 이를 통해 *여러분의 API*로 보내진 원래 요청의 파라미터와 일부 값을 변수로 사용할 수 있습니다.

### 콜백 경로 표현식 { #the-callback-path-expression }

콜백 *path*는 *여러분의 API*로 보내진 원래 요청의 일부를 포함할 수 있는 [OpenAPI 3 표현식](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression)을 가질 수 있습니다.

이 경우, 다음 `str`입니다:

    return parentFile.isDescendentOf(directory)
  }

  /**
   * See FinalizationTester for discussion on how to best trigger GC in tests.
   * https://android.googlesource.com/platform/libcore/+/master/support/src/test/java/libcore/
   * java/lang/ref/FinalizationTester.java
   */
  @Throws(Exception::class)
  @JvmStatic
  fun awaitGarbageCollection() {
    Runtime.getRuntime().gc()
    Thread.sleep(100)

Fügen wir beispielsweise [ReDocs OpenAPI-Erweiterung zum Einbinden eines benutzerdefinierten Logos](https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo) hinzu.

### Normales **FastAPI** { #normal-fastapi }

Schreiben Sie zunächst wie gewohnt Ihre ganze **FastAPI**-Anwendung:

Por ejemplo, vamos a añadir [la extensión OpenAPI de ReDoc para incluir un logo personalizado](https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo).

### **FastAPI** normal { #normal-fastapi }

Primero, escribe toda tu aplicación **FastAPI** como normalmente:

## Autres middlewares { #other-middlewares }

Il existe de nombreux autres middlewares ASGI.

Par exemple :

- [Le `ProxyHeadersMiddleware` d'Uvicorn](https://github.com/encode/uvicorn/blob/master/uvicorn/middleware/proxy_headers.py)
- [MessagePack](https://github.com/florimondmanca/msgpack-asgi)

///

## 기본값 덮어쓰기 { #overriding-the-defaults }

위 정보를 바탕으로, 동일한 유틸리티 함수를 사용해 OpenAPI 스키마를 생성하고 필요한 각 부분을 덮어쓸 수 있습니다.

예를 들어, [커스텀 로고를 포함하기 위한 ReDoc의 OpenAPI 확장](https://github.com/Rebilly/ReDoc/blob/master/docs/redoc-vendor-extensions.md#x-logo)을 추가해 보겠습니다.

### 일반적인 **FastAPI** { #normal-fastapi }

먼저, 평소처럼 **FastAPI** 애플리케이션을 모두 작성합니다:

{* ../../docs_src/extending_openapi/tutorial001_py310.py hl[1,4,7:9] *}

failed_count_site2=$(./s3-check-md5 -versions -access-key minioadmin -secret-key minioadmin -endpoint http://site2-nginx:9002 -bucket testbucket 2>&1 | grep FAILED | wc -l)

## we do not need to fail here, since we are going to test
## upgrading to master, healing and being able to recover
## the last version.
if [ $failed_count_site1 -ne 0 ]; then
	echo "failed with multipart on site1 uploads ${failed_count_site1}"
fi

if [ $failed_count_site2 -ne 0 ]; then

A sample msgpack-JSON `xl.meta`, you can debug the content inside `xl.meta` using [xl-meta.go](https://github.com/minio/minio/tree/master/docs/debugging#decoding-metadata) program.

```json
{
  "Versions": [
    {
      "Type": 1,
      "V2Obj": {
        "ID": "KWUs8S+8RZq4Vp5TWy6KFg==",
        "DDir": "X3pDAFu8Rjyft7QD6t7W5g==",