使用node.js,nano和CouchDB进行身份验证

const nano = require('nano')('http://localhost:5984');
const dbName = 'my_auth_db';

// 创建数据库
nano.db.create(dbName, (err) => {
  if (err) {
    console.error('Error creating database:', err);
  } else {
    console.log('Database created successfully');
  }
});

// 连接到数据库
const db = nano.use(dbName);

// 创建用户
const createUser = async (username, password, role) => {
  try {
    const response = await db.insert({
      _id: `user:${username}`,
      username,
      password,
      role,
    });
    console.log('User created successfully:', response);
  } catch (err) {
    console.error('Error creating user:', err);
  }
};

// 身份验证
const authenticate = async (username, password) => {
  try {
    const userDoc = await db.get(`user:${username}`);
    if (userDoc.password === password) {
      console.log('Authentication successful');
      return userDoc.role;
    } else {
      console.log('Authentication failed');
      return null;
    }
  } catch (err) {
    console.error('Error authenticating:', err);
    return null;
  }
};

// 示例
createUser('john', 'password123', 'admin');
authenticate('john', 'password123').then((role) => {
  console.log('User role:', role);
});