[[:oktatas:web:back-end_framework:express|< Express]]

====== Express - Kontroller objektummal ======

  * **Szerző:** Sallai András
  * Copyright (c) 2024, Sallai András
  * Szerkesztve: 2024
  * Licenc: [[https://creativecommons.org/licenses/by-sa/4.0/|CC Attribution-Share Alike 4.0 International]]
  * Web: https://szit.hu

===== Hibakezelés leválasztása =====

<code javascript app/index.js>
const express = require('express');
const app = express();
const router = require('./routes');
const port = 8000;

app.use('/api',router);

app.listen(port, () => {
  console.log(`Listening on port ${port}`);
});
</code>



<code javascript app/routes.js>
const Router = require('express');
const router = Router();
const EmployeeController = require('./controllers/employeecontroller');

router.get('/employees', EmployeeController.index);

module.exports = router;
</code>


<code javascript app/controllers/employeescontroller.js>
const EmployeeController = {
  index(req, res) {
    try {
      EmployeeController.tryIndex(req, res);
    } catch (error) {
      res.status(500);
      res.json({msg: error});
    }
  },
  tryIndex(req, res) {
    res.status(200);
    res.json({msg: 'működik'});
  }
}

module.exports = EmployeeController;
</code>