express-validator not producing validation errors

I am facing error while doing latest express validator (V ^4.3.0) example. There is one basic example of login with post request. There are two parameters email and password. Below is my code.

routes.js file:

var express = require('express');  
var router  = express.Router();  
var validator = require('./validator');

router.post('/login', [sanitize('email').trim(), 
 validator.publicRouteValidate('login')], (req, res, next) => {
  console.log(req);
}  

validator.js file:

'use strict';  
const { check, validationResult } = require('express-validator/check');  
const { matchedData, sanitize } = require('express-validator/filter');

module.exports = {  
  publicRouteValidate: function (method) {  
    return (req, res, next) => {  
      switch (method) {  
        case 'login':  
          check('email').isEmail().withMessage('email must be an email')  
            .isLength({min: 109}).withMessage('minimum length should be 100 characters')  
        break;  
      }  
      var errors = validationResult(req)
      console.log(errors.mapped())
      if (!errors.isEmpty()) {
         res.status(422).json({ errors: errors.array()[0].msg })
      } else {
         res.send('login')
      }
}}}  

Now when I am doing POST request with only email and value of email is abc. So I should get the error like email must be an email. But I did not get any response. So What is the issue I do not know?

[notflip]

Could anyone briefly explain why we need to do this in 2 separate functions? So with middleware instead of allowing it to be done in one function?

[lock[bot]]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.