## Mélanger les paramètres `Path`, `Query` et du corps de la requête { #mix-path-query-and-body-parameters }

Tout d'abord, sachez que vous pouvez mélanger librement les déclarations des paramètres `Path`, `Query` et du corps de la requête, **FastAPI** saura quoi faire.

            } else {
              haveBeenCalled = true;
              throw sneakyThrow(new SomeCheckedException());
            }
          }
        };

    // The first time, the sneakily-thrown exception comes out
    assertThrows(SomeCheckedException.class, iter::hasNext);
    // But the second time, AbstractIterator itself throws an ISE
    assertThrows(IllegalStateException.class, iter::hasNext);
  }

            } else {
              haveBeenCalled = true;
              throw sneakyThrow(new SomeCheckedException());
            }
          }
        };

    // The first time, the sneakily-thrown exception comes out
    assertThrows(SomeCheckedException.class, iter::hasNext);
    // But the second time, AbstractIterator itself throws an ISE
    assertThrows(IllegalStateException.class, iter::hasNext);
  }

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</div>

/// note

When you install with `pip install "fastapi[standard]"` it comes with some default optional standard dependencies, including `fastapi-cloud-cli`, which allows you to deploy to [FastAPI Cloud](https://fastapicloud.com).

<img src="/img/tutorial/response-status-code/image01.png">

/// note | 注意

某些响应状态码表示响应没有响应体（参阅下一章）。

FastAPI 可以进行识别，并生成表明无响应体的 OpenAPI 文档。

///

## 关于 HTTP 状态码 { #about-http-status-codes }

/// note | 注意

如果已经了解 HTTP 状态码，请跳到下一章。

///

在 HTTP 协议中，发送 3 位数的数字状态码是响应的一部分。

这些状态码都具有便于识别的关联名称，但是重要的还是数字。

简言之：

* `100 - 199` 用于返回“信息”。这类状态码很少直接使用。具有这些状态码的响应不能包含响应体

        // Verify the constants are accessible via reflection or by checking their usage
        // Since the constants are private, we test their values indirectly

        // The constants should match standard HTTP status codes
        // HTTP_STATUS_NOT_FOUND = 404
        // HTTP_STATUS_OK = 200

        // This test verifies that the constants are being used in the code
        // The actual verification happens at compile time

Along with Hug (as Hug is based on Falcon) inspired **FastAPI** to declare a `response` parameter in functions.

Although in FastAPI it's optional, and is used mainly to set headers, cookies, and alternative status codes.

///

### [Molten](https://moltenframework.com/) { #molten }

I discovered Molten in the first stages of building **FastAPI**. And it has quite similar ideas:

* Based on Python type hints.

<setting id="org.eclipse.jdt.core.formatter.insert_space_after_semicolon_in_for" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.disabling_tag" value="@formatter:off"/>
<setting id="org.eclipse.jdt.core.formatter.continuation_indentation" value="2"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_enum_constants" value="0"/>
<setting id="org.eclipse.jdt.core.formatter.blank_lines_before_imports" value="1"/>

        "//tensorflow/core/distributed_runtime/eager:remote_mgr",
        "//tensorflow/core/distributed_runtime/rpc:grpc_channel",
        "//tensorflow/core/distributed_runtime/rpc:grpc_server_lib",
        "//tensorflow/core/distributed_runtime/rpc:grpc_worker_cache",
        "//tensorflow/core/distributed_runtime/rpc:grpc_worker_service",
        "//tensorflow/core/distributed_runtime/rpc:rpc_rendezvous_mgr",

func (lrw *ResponseRecorder) TTFB() time.Duration {
	if lrw.ttfbBody != 0 {
		return lrw.ttfbBody
	}
	return lrw.ttfbHeader
}

// NewResponseRecorder - returns a wrapped response writer to trap
// http status codes for auditing purposes.
func NewResponseRecorder(w http.ResponseWriter) *ResponseRecorder {
	rf, _ := w.(io.ReaderFrom)
	return &ResponseRecorder{
		ResponseWriter: w,
		ReaderFrom:     rf,
		StatusCode:     http.StatusOK,