Express validator

npm install --save express-validator

check('Username', 'Username contains non-alphanumeric characters - not allowed.').isAlphanumeric()

// ...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));
  },
);

npm install --save express-validator

npm install express-validator

Similar codes

1 vote291 views1 answer
Express prisma
Javascript Express
0 vote294 views1 answer
Express orm
Javascript Express
30 votes295 views2 answers
Express get params after ?
Javascript Express
4 votes308 views1 answer
How to parse POST requests with express nodejs
Javascript Express
0 vote315 views1 answer
MIME type Error CSS in nodejs Express
Javascript Express
2 votes324 views1 answer
Express req ip address
Javascript Express
0 vote332 views1 answer
How to set css in hbs in express
Javascript Express
6 votes371 views3 answers
Set headers in express
Javascript Express
4 votes320 views3 answers
Expressjs async await
Javascript Express
0 vote292 views1 answer
List pci express version command line
Javascript Express