在express API中从一个控制器调用另一个控制器。

// app.js
const express = require('express');
const app = express();
const port = 3000;

// 引入控制器
const userController = require('./controllers/userController');
const authController = require('./controllers/authController');

// 路由定义
app.use('/users', userController);
app.use('/auth', authController);

app.listen(port, () => {
  console.log(`Server is running on http://localhost:${port}`);
});

// controllers/userController.js
const express = require('express');
const router = express.Router();
const authController = require('./authController');

router.get('/profile', async (req, res, next) => {
  try {
    // 调用authController中的authenticate函数
    const isAuthenticated = await authController.authenticate(req);
    if (!isAuthenticated) {
      return res.status(401).json({ message: 'Unauthorized' });
    }
    // 处理用户信息
    res.json({ user: req.user });
  } catch (error) {
    next(error);
  }
});

module.exports = router;

// controllers/authController.js
const express = require('express');
const router = express.Router();

router.post('/login', (req, res, next) => {
  // 处理登录逻辑
  // ...
  res.json({ token: 'some-token' });
});

const authenticate = async (req) => {
  // 验证逻辑
  // ...
  return true; // 或者 false
};

module.exports = { authenticate };