* 将 `HTMLResponse` 作为你的 *路径操作* 的 `response_class` 参数传入。

{* ../../docs_src/custom_response/tutorial002_py310.py hl[2,7] *}

/// info | 信息

参数 `response_class` 也会用来定义响应的「媒体类型」。

在这个例子中，HTTP 头的 `Content-Type` 会被设置成 `text/html`。

并且在 OpenAPI 文档中也会这样记录。

///

### 返回一个 `Response` { #return-a-response }

正如你在 [直接返回响应](response-directly.md) 中了解到的，你也可以通过直接返回响应在 *路径操作* 中直接重载响应。

和上面一样的例子，返回一个 `HTMLResponse` 看起来可能是这样：

    assert response.json() == {"msg": "Status overwritten", "id": 1}


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/{id}": {

async def b():
    pass  # pragma: no cover


client = TestClient(app)


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/a": {

    assert response.json() == {"detail": "Not authenticated"}


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/me": {

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.junit.Assert.assertThat;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

import org.codelibs.core.misc.LocaleUtil;
import org.junit.After;
import org.junit.Before;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package gradlebuild.identity.model

import org.gradle.util.GradleVersion

import java.text.SimpleDateFormat
import java.util.Date
import java.util.TimeZone


data class ReleasedVersion(val version: String, val buildTime: String) {
    fun gradleVersion() = GradleVersion.version(version)

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.text;

import java.util.Locale;

import junit.framework.TestCase;

/**
 * @author higa
 *
 */
public class DecimalFormatUtilTest extends TestCase {

    /**
     * @throws Exception
     */

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

import java.text.SimpleDateFormat;
import java.util.Date;

import org.codehaus.plexus.interpolation.AbstractValueSource;

/**
 *
 */
@Deprecated
public class BuildTimestampValueSource extends AbstractValueSource {

                "input": {},
            },
        ]
    }


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/items/": {

@app.get("/a/{id}")
async def a(id):
    pass  # pragma: no cover


client = TestClient(app)


def test_openapi_schema():
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/a/{id}": {