js request validator
// ...rest of the initial code omitted for simplicity.const { body, validationResult } = require('express-validator');
app.post( '/user',
// username must be an email
body('username').isEmail(), // password must be at least 5 chars long
body('password').isLength({ min: 5 }), (req, res) => {
// Finds the validation errors in this request and wraps them in an object with handy functions
const errors = validationResult(req); if (!errors.isEmpty()) {
return res.status(400)
.json({ errors: errors.array() });
}
User.create({
username: req.body.username,
password: req.body.password,
})
.then(user => res.json(user)); },);