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 vote261 views1 answer
Express download file
Javascript Express
-2 votes270 views1 answer
Express file upload
Javascript Express
0 vote276 views1 answer
Expressjs with mongodb
Javascript Express
3 votes266 views1 answer
Express post not working
Javascript Express
0 vote272 views1 answer
Multiple parameters express
Javascript Express
2 votes215 views1 answer
Express response sended
Javascript Express
1 vote254 views1 answer
Ngingx proxy express get real ip
Javascript Express
0 vote254 views1 answer
Express js url with id
Javascript Express
0 vote216 views1 answer
Serve public folder express without file extension
Javascript Express
1 vote290 views2 answers
Connecting mongoose with express js
Javascript Express