例如，假設你預設想回傳 HTTP 狀態碼 "OK" `200`。

但如果資料不存在，你想要建立它，並回傳 HTTP 狀態碼 "CREATED" `201`。

同時你仍希望能用 `response_model` 過濾並轉換所回傳的資料。

在這些情況下，你可以使用 `Response` 參數。

## 使用 `Response` 參數 { #use-a-response-parameter }

你可以在你的路徑操作函式（path operation function）中宣告一個 `Response` 型別的參數（就像你可以對 Cookies 和標頭那樣）。

接著你可以在那個「*暫時的*」回應物件上設定 `status_code`。

{* ../../docs_src/response_change_status_code/tutorial001_py310.py hl[1,9,12] *}

然後你可以照常回傳任何需要的物件（例如 `dict`、資料庫模型等）。

                                "required": True,
                                "schema": {"title": "Item Id", "type": "string"},
                                "name": "item_id",
                                "in": "path",
                            },
                            {
                                "required": False,
                                "schema": {

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build unix

package bufio_test

import (
	"bufio"
	"io"
	"net"
	"path/filepath"
	"strings"
	"sync"
	"testing"
)

// TestCopyUnixpacket tests that we can use bufio when copying
// across a unixpacket socket. This used to fail due to an unnecessary

        assertNotNull(request);
    }

    @Test
    public void testLongUrl() {
        // Test with very long URL
        StringBuilder longUrl = new StringBuilder("https://example.com/path");
        for (int i = 0; i < 100; i++) {
            longUrl.append("/segment").append(i);
        }

        CurlRequest request = new CurlRequest(Method.GET, longUrl.toString());
        assertNotNull(request);

foo:/bar.com/  s:foo p:/bar.com/
foo://///////  s:foo p://///////
foo://///////bar.com/  s:foo p://///////bar.com/
foo:////://///  s:foo p:////://///
c:/foo  s:c p:/foo
//foo/bar  s:http h:foo p:/bar
http://foo/path;a??e#f#g  s:http h:foo p:/path;a q:??e f:#f#g
http://foo/abcd?efgh?ijkl  s:http h:foo p:/abcd q:?efgh?ijkl
http://foo/abcd#foo?bar  s:http h:foo p:/abcd f:#foo?bar
[61:24:74]:98  s:http h:example.org p:/foo/[61:24:74]:98

participant dep_func as Dep scope="function"
participant operation as Path Operation

    client ->> dep_req: Start request
    Note over dep_req: Run code up to yield
    dep_req ->> dep_func: Pass dependency
    Note over dep_func: Run code up to yield
    dep_func ->> operation: Run path operation with dependency
    operation ->> dep_func: Return from path operation
    Note over dep_func: Run code after yield

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.internal;

import java.nio.file.Path;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import org.apache.maven.model.Dependency;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.util;

import java.io.File;
import java.nio.file.Path;

import org.codelibs.core.io.FileUtil;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.server.Server;

 * under the License.
 */
package org.apache.maven.model.interpolation;

import java.io.File;
import java.util.Collection;
import java.util.List;

import org.apache.maven.model.path.PathTranslator;
import org.codehaus.plexus.interpolation.InterpolationPostProcessor;
import org.codehaus.plexus.interpolation.util.ValueSourceUtils;

/**
 *

	defer r.Body.Close()
	if err != nil {
		log.Printf("Error reading request body: %v", err)
		w.WriteHeader(http.StatusBadRequest)
		return
	}

	log.Printf(">>> %s %s\n", r.Method, r.URL.Path)
	var out bytes.Buffer
	json.Indent(&out, body, "", "    ")
	log.Printf("%s\n", out.String())

	w.WriteHeader(http.StatusOK)
}

func main() {
	flag.Parse()
	http.HandleFunc("/", mainHandler)