Вот более полный пример.

Используйте зависимость, чтобы проверить, корректны ли имя пользователя и пароль.

Для этого используйте стандартный модуль Python <a href="https://docs.python.org/3/library/secrets.html" class="external-link" target="_blank">`secrets`</a> для проверки имени пользователя и пароля.

///

## 返回自定义 `Response`

上面的例子展示了需要的所有部分，但还不够实用，因为你本可以只是直接返回 `item`，而**FastAPI** 默认帮你把这个 `item` 放到 `JSONResponse` 中，又默认将其转换成了 `dict`等等。

现在，让我们看看你如何才能返回一个自定义的响应。

假设你想要返回一个 <a href="https://en.wikipedia.org/wiki/XML" class="external-link" target="_blank">XML</a> 响应。

你可以把你的 XML 内容放到一个字符串中，放到一个 `Response` 中，然后返回。

{* ../../docs_src/response_directly/tutorial002.py hl[1,18] *}

## 说明

# 关于 FastAPI 版本

**FastAPI** 已在许多应用程序和系统的生产环境中使用。 并且测试覆盖率保持在100%。 但其开发进度仍在快速推进。

经常添加新功能，定期修复错误，并且代码仍在持续改进。

这就是为什么当前版本仍然是`0.x.x`，这反映出每个版本都可能有Breaking changes。 这遵循<a href="https://semver.org/" class="external-link" target="_blank">语义版本控制</a>的约定。

你现在就可以使用 **FastAPI** 创建生产环境应用程序（你可能已经这样做了一段时间），你只需确保使用的版本可以与其余代码正确配合即可。

## 固定你的 `fastapi` 版本

你应该做的第一件事是将你正在使用的 **FastAPI** 版本“固定”到你知道适用于你的应用程序的特定最新版本。

例如，假设你在应用程序中使用版本`0.45.0`。

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"os"
	"path/filepath"
	"syscall"
)

func access(name string) error {
	_, err := os.Lstat(name)
	return err
}

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package auth

import (
	"encoding/json"
	"testing"
	"time"
)

func TestExpToInt64(t *testing.T) {
	testCases := []struct {
		exp             any
		expectedFailure bool
	}{

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package sse

import (
	"encoding/xml"
	"errors"
	"io"
	"net/http"
	"strings"

	"github.com/minio/minio/internal/crypto"
	xhttp "github.com/minio/minio/internal/http"
)

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package heal

import (
	"errors"
	"fmt"
	"strconv"
	"strings"
	"sync"
	"time"

	"github.com/minio/minio/internal/config"
	"github.com/minio/pkg/v3/env"
)

// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package csv

import (
	"encoding/json"
	"errors"
	"fmt"
	"io"
	"strconv"
	"strings"

	csv "github.com/minio/csvparser"
	"github.com/minio/minio/internal/s3select/jstream"

 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,

 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY