Swagger UI s’en chargera en arrière‑plan pour vous, mais il a besoin de cet assistant « redirect ».

///

### Créer un chemin d'accès pour tester { #create-a-path-operation-to-test-it }

Maintenant, pour pouvoir vérifier que tout fonctionne, créez un chemin d'accès :

{* ../../docs_src/custom_docs_ui/tutorial001_py310.py hl[36:38] *}

### Tester { #test-it }

///

### Créer un `APIRouter` de callback { #create-a-callback-apirouter }

Commencez par créer un nouveau `APIRouter` qui contiendra un ou plusieurs callbacks.

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[1,23] *}

### Créer le *chemin d'accès* du callback { #create-the-callback-path-operation }

## カスタムリクエストボディのエンコーディングの処理 { #handling-custom-request-body-encodings }

gzip のリクエストを解凍するために、カスタムの `Request` サブクラスを使う方法を見ていきます。

そして、そのカスタムリクエストクラスを使うための `APIRoute` サブクラスを用意します。

### カスタム `GzipRequest` クラスの作成 { #create-a-custom-gziprequest-class }

/// tip | 豆知識

これは仕組みを示すためのサンプルです。Gzip 対応が必要な場合は、用意されている [`GzipMiddleware`](../advanced/middleware.md#gzipmiddleware) を使用できます。

///

临时改变（为外部开发者的）视角能让您更清楚该如何放置*外部 API* 响应和请求体的参数与 Pydantic 模型等。

///

### 创建回调的 `APIRouter` { #create-a-callback-apirouter }

首先，新建包含一些用于回调的 `APIRouter`。

{* ../../docs_src/openapi_callbacks/tutorial001_py310.py hl[1,23] *}

### 创建回调*路径操作* { #create-the-callback-path-operation }

创建回调*路径操作*也使用之前创建的 `APIRouter`。

它看起来和常规 FastAPI *路径操作*差不多：

* 声明要接收的请求体，例如，`body: InvoiceEvent`

  public val method: String,
  /**
   * The request target from the original HTTP request.
   *
   * For origin-form requests this is a path like `/index.html`, that is combined with the `Host`
   * header to create the request URL.
   *
   * For HTTP proxy requests this will be either an absolute-form string like
   * `http://example.com/index.html` (HTTP proxy) or an authority-form string like
   * `example.com:443` (HTTPS proxy).
   *

  @SuppressWarnings("UndefinedEquals")
  private void assertCleared() {
    assertEquals(0, multimap().size());
    assertEmpty(multimap());
    assertEquals(multimap(), getSubjectGenerator().create());
    assertEmpty(multimap().entries());
    assertEmpty(multimap().asMap());
    assertEmpty(multimap().keySet());
    assertEmpty(multimap().keys());
    assertEmpty(multimap().values());

    assertThat(builder.build().escape("The Quick Brown Fox!")).isEqualTo("The_Quick_Brown_Fox_");
  }

  public void testBuilderCreatesIndependentEscapers() {
    // Set up a simple builder and create the first escaper.
    Escapers.Builder builder = Escapers.builder();
    builder.setSafeRange('a', 'z');
    builder.setUnsafeReplacement("X");
    builder.addEscape(' ', "_");
    Escaper first = builder.build();

    private static final String TEST_TARGET = "TEST_TARGET";
    private static final String TEST_DOMAIN = "TEST_DOMAIN";
    private static final String TEST_HOSTNAME = "TEST_HOSTNAME";

    /**
     * Helper method to create a fully mocked CIFSContext with all necessary dependencies
     */
    private CIFSContext createMockContext() {
        CIFSContext mockContext = mock(CIFSContext.class);

</div>

**Note**: Make sure you put `"fastapi[standard]"` in quotes to ensure it works in all terminals.

## Example { #example }

### Create it { #create-it }

Create a file `main.py` with:

```Python
from fastapi import FastAPI

app = FastAPI()


@app.get("/")
def read_root():
    return {"Hello": "World"}


@app.get("/items/{item_id}")

import java.util.ArrayList;
import java.util.List;
import org.jspecify.annotations.NullMarked;

/**
 * Tester for {@link Equivalence} relationships between groups of objects.
 *
 * <p>To use, create a new {@link EquivalenceTester} and add equivalence groups where each group
 * contains objects that are supposed to be equal to each other. Objects of different groups are
 * expected to be unequal. For example:
 *