نوشتن APi, Route , Controller

src/
├─ controllers/
│  ├─ requestController.js
│  └─ userController.js
└─ routes/
   ├─ requestRoutes.js
   └─ userRoutes.js

import { Router } from 'express';
import {
  createRequest,
  getAllRequests,
  getRequestById,
  updateRequest,
  deleteRequest
} from '../controllers/requestController.js';
const router = Router();
router.post('/', createRequest);
router.get('/', getAllRequests);
router.get('/:id', getRequestById);
router.put('/:id', updateRequest);
router.delete('/:id', deleteRequest);
export default router;

import Request from '../models/request.js';
export const createRequest = async (req, res, next) => {
try {
const newReq = await Request.create({
userId: req.body.userId,
expertId: req.body.expertId,
text: req.body.text
});
res.status(201).json(newReq);
} catch (err) {
next(err);
}
};
export const getAllRequests = async (_req, res, next) => {
try {
const list = await Request.findAll();
res.json(list);
} catch (err) {
next(err);
}
};
export const getRequestById = async (req, res, next) => {
try {
const item = await Request.findByPk(req.params.id);
if (!item) return res.status(404).json({ message: 'Not found' });
res.json(item);
} catch (err) {
next(err);
}
};
export const updateRequest = async (req, res, next) => {
try {
const [updated] = await Request.update(req.body, {
where: { requestId: req.params.id }
});
if (!updated) return res.status(404).json({ message: 'Not found' });
res.json({ message: 'Updated' });
} catch (err) {
next(err);
}
};
export const deleteRequest = async (req, res, next) => {
try {
const deleted = await Request.destroy({
where: { requestId: req.params.id }
});
if (!deleted) return res.status(404).json({ message: 'Not found' });
res.status(204).end();
} catch (err) {
next(err);
}
};

import express from 'express';
import bodyParser from 'body-parser';
import requestRoutes from './routes/requestRoutes.js';
import userRoutes    from './routes/userRoutes.js';
const app = express();
app.use(bodyParser.json());
app.use('/api/requests', requestRoutes);
app.use('/api/users',    userRoutes);
// هندلینگ خطا
app.use((err, _req, res, _next) => {
console.error(err);
res.status(500).json({ error: err.message });
});
export default app;