For those cases, you can use a `Response` parameter.

## Use a `Response` parameter

You can declare a parameter of type `Response` in your *path operation function* (as you can do for cookies and headers).

And then you can set the `status_code` in that *temporal* response object.

```Python hl_lines="1  9  12"
{!../../../docs_src/response_change_status_code/tutorial001.py!}
```

Pero aún quieres poder filtrar y convertir los datos que retornas con un `response_model`.

Para esos casos, puedes usar un parámetro `Response`.

## Usar un parámetro `Response`

Puedes declarar un parámetro de tipo `Response` en tu *función de la operación de path* (como puedes hacer para cookies y headers).

Y luego puedes establecer el `status_code` en ese objeto de respuesta *temporal*.

# 响应 - 更改状态码

你可能之前已经了解到，你可以设置默认的[响应状态码](../tutorial/response-status-code.md){.internal-link target=_blank}。

但在某些情况下，你需要返回一个不同于默认值的状态码。

## 使用场景

例如，假设你想默认返回一个HTTP状态码为“OK”`200`。

但如果数据不存在，你想创建它，并返回一个HTTP状态码为“CREATED”`201`。

但你仍然希望能够使用`response_model`过滤和转换你返回的数据。

对于这些情况，你可以使用一个`Response`参数。

## 使用 `Response` 参数

你可以在你的*路径操作函数*中声明一个`Response`类型的参数（就像你可以为cookies和头部做的那样）。

然后你可以在这个*临时*响应对象中设置`status_code`。

👆 🎲 ✍ ⏭ 👈 👆 💪 ⚒ 🔢 [📨 👔 📟](../tutorial/response-status-code.md){.internal-link target=_blank}.

✋️ 💼 👆 💪 📨 🎏 👔 📟 🌘 🔢.

## ⚙️ 💼

🖼, 🌈 👈 👆 💚 📨 🇺🇸🔍 👔 📟 "👌" `200` 🔢.

✋️ 🚥 💽 🚫 🔀, 👆 💚 ✍ ⚫️, & 📨 🇺🇸🔍 👔 📟 "✍" `201`.

✋️ 👆 💚 💪 ⛽ & 🗜 💽 👆 📨 ⏮️ `response_model`.

📚 💼, 👆 💪 ⚙️ `Response` 🔢.

## ⚙️ `Response` 🔢

👆 💪 📣 🔢 🆎 `Response` 👆 *➡ 🛠️ 🔢* (👆 💪 🍪 & 🎚).

    val response = call.execute()

    // Body contains nothing.
    assertThat(response.body.bytes().size).isEqualTo(0)
    assertThat(response.body.contentLength()).isEqualTo(0)

    // Content-Length header doesn't exist in a 204 response.
    assertThat(response.header("content-length")).isNull()
    assertThat(response.code).isEqualTo(204)
    val request = server.takeRequest()

# Custom Response Classes - File, HTML, Redirect, Streaming, etc.

There are several custom response classes you can use to create an instance and return them directly from your *path operations*.

Read more about it in the [FastAPI docs for Custom Response - HTML, Stream, File, others](https://fastapi.tiangolo.com/advanced/custom-response/).

You can import them directly from `fastapi.responses`:

```python
from fastapi.responses import (
    FileResponse,

        .build()
    val response1 = client.newCall(request).execute()
    response1.body.close()
    assertThat(response1.header("X-Response-ID")).isEqualTo("1")
    val response2 = get(url)
    response2.body.close()
    if (expectCached) {
      assertThat(response2.header("X-Response-ID")).isEqualTo("1")
    } else {
      assertThat(response2.header("X-Response-ID")).isEqualTo("2")
    }
  }

    val request = Request.Builder().url(server.url("/")).build()

    val response = client.newCall(request).execute()

    response.use {
      assertEquals(200, response.code)
      assertEquals(
        "CN=localhost",
        (response.handshake!!.peerCertificates.single() as X509Certificate).subjectDN.name,
      )
    }
  }

  private fun enableTls() {
    client =

 *
 * Both this class and [Response] implement [Closeable]. Closing a response simply
 * closes its response body. If you invoke [Call.execute] or implement [Callback.onResponse] you
 * must close this body by calling any of the following methods:
 *
 * * `Response.close()`
 * * `Response.body().close()`
 * * `Response.body().source().close()`
 * * `Response.body().charStream().close()`
 * * `Response.body().byteStream().close()`

    }
    val request =
      Request.Builder()
        .url(server.url("/"))
        .build()
    val response = client.newCall(request).execute()
    assertThat(response.body.string()).isEqualTo("ABC")
    assertThat(response.header("OkHttp-Intercepted")).isEqualTo("yep")
    assertThat(response.header("Original-Header")).isEqualTo("foo")
  }

  @Test
  fun multipleApplicationInterceptors() {