在nodejs/express中使用异步postgres的正确方法？

const express = require('express');
const { Pool } = require('pg');

const app = express();

// 配置数据库连接参数
const pool = new Pool({
  host: 'localhost',
  port: 5432,
  user: 'your_username',
  password: 'your_password',
  database: 'your_database',
});

// 示例路由处理程序
app.get('/users', async (req, res) => {
  try {
    // 从数据库中获取用户数据
    const query = 'SELECT * FROM users';
    const result = await pool.query(query);

    // 处理查询结果
    const users = result.rows;
    res.json(users);
  } catch (error) {
    console.error('Error executing query', error);
    res.status(500).json({ error: 'Internal server error' });
  }
});

// 启动应用程序
app.listen(3000, () => {
  console.log('Server is running on port 3000');
});