• Szerző: Sallai András
• Copyright © 2024, Sallai András
• Szerkesztve: 2024
• Licenc: CC Attribution-Share Alike 4.0 International
• Web: https://szit.hu

src/index.js

import express, { Application, Request, Response } from 'express';
import router from './routes/api';
 
const app: Application = express();
 
const PORT = 8000;
 
app.use(express.json())
app.use('/', router)
 
app.listen(PORT, () => {
    console.log(`Running: localhost:${PORT}`);
});

src/routes/api.js

import { Router } from 'express';
import { validate } from '../middleware/validate';
import { EmpController } from '../controllers/empController';
 
const router = Router();
 
router.get('/msg', EmpController.index);
router.post('/msg', [validate], EmpController.store);
 
export default router;

src/controllers/empController.js

import { Router } from 'express';
import { validate } from '../middleware/validate';
import { EmpController } from '../controllers/empController';
 
const router = Router();
 
router.get('/msg', EmpController.index);
router.post('/msg', [validate], EmpController.store);
 
export default router;

Az érvényességet egy köztes szoftverrel fogjuk ellenőrizni:

src/middleware/validate.js

import Joi from '@hapi/joi';
import { NextFunction, Request, Response } from 'express';
 
const schema = Joi.object({
    name: Joi.string().required(),
    city: Joi.string().min(2)
})
 
const validate = (req: Request, res: Response, next: NextFunction) => {
    const { error } = schema.validate(req.body);    
    if (error) {
      return res.status(400).send(error.details[0].message);
    }
    next()
};
 
export { validate }

• https://joi.dev/api/?v=17.13.0 (2024)