小程序服务器开发框架图

+---------------------+
|  小程序客户端       |
+---------+-----------+
          |
          v
+---------+-----------+
|  API 网关 (Gateway)  |
+---------+-----------+
          |
          v
+---------+-----------+
|  身份验证与授权 (Auth)|
+---------+-----------+
          |
          v
+---------+-----------+       +---------------------+
|  业务逻辑层 (Service)|<---->|  数据访问层 (DAO)   |
+---------+-----------+       +---------------------+
          |
          v
+---------------------+
|  数据库 (Database)   |
+---------------------+

const express = require('express');
const app = express();
const bodyParser = require('body-parser');
const authMiddleware = require('./middleware/auth');
const userController = require('./controllers/userController');

app.use(bodyParser.json());

// 身份验证中间件
app.use(authMiddleware);

// 用户相关 API
app.get('/users', userController.getUsers);
app.post('/users', userController.createUser);

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});