```

## 在路由中自定义 `APIRoute` 类

您还可以设置 `APIRoute` 的 `route_class` 参数：

```Python hl_lines="26"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}
```

本例中，*路径操作*下的 `router` 使用自定义的 `TimedRoute` 类，并在响应中包含输出生成响应时间的 `X-Response-Time` 响应头：

```Python hl_lines="13-20"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}

        "discussion_id": discussion_id,
        "comment_id": comment_id,
        "body": body,
    }
    response = httpx.post(
        github_graphql_url,
        headers=headers,
        timeout=settings.httpx_timeout,
        json={"query": query, "variables": variables, "operationName": "Q"},
    )
    if response.status_code != 200:
        logging.error(

    # keep it here for simplicity
    variables = {"after": after, "category_id": category_id}
    response = httpx.post(
        github_graphql_url,
        headers=headers,
        timeout=settings.httpx_timeout,
        json={"query": query, "variables": variables, "operationName": "Q"},
    )
    if response.status_code != 200:
        logging.error(

```Python hl_lines="26"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}
```

In this example, the *path operations* under the `router` will use the custom `TimedRoute` class, and will have an extra `X-Response-Time` header in the response with the time it took to generate the response:

```Python hl_lines="13-20"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}

```

## 🛃 `APIRoute` 🎓 📻

👆 💪 ⚒ `route_class` 🔢 `APIRouter`:

```Python hl_lines="26"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}
```

👉 🖼, *➡ 🛠️* 🔽 `router` 🔜 ⚙️ 🛃 `TimedRoute` 🎓, & 🔜 ✔️ ➕ `X-Response-Time` 🎚 📨 ⏮️ 🕰 ⚫️ ✊ 🏗 📨:

```Python hl_lines="13-20"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}

* 🐛 Fix FastAPI People GitHub Action: set HTTPX timeout for GraphQL query request. PR [#5222](https://github.com/tiangolo/fastapi/pull/5222) by [@iudeen](https://github.com/iudeen).

```Python hl_lines="26"
{!../../../docs_src/custom_request_and_route/tutorial003.py!}
```

In diesem Beispiel verwenden die *Pfadoperationen* unter dem `router` die benutzerdefinierte `TimedRoute`-Klasse und haben in der Response einen zusätzlichen `X-Response-Time`-Header mit der Zeit, die zum Generieren der Response benötigt wurde:

```Python hl_lines="13-20"