Not getting any response from mysql for this Rest api Im trying to do user login with MySql

For login using mysql and nodejs for angular2 application' postman loading only not responding anything and console response POST /login - - ms - -

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

router.post('/:username?', function (req, res, next) {

var username=req.body.username;
var password=req.body.password;
if (req.params.username) {
 login.getAuth(req.params.username, function (err,results, rows) {
if (err) {
// console.log("error ocurred",error);
res.send({
  "code":400,
  "failed":"error ocurred"
})
}else{
// console.log('The solution is: ', results);
if(results.length >0){
  if([0].password == password){
    res.send({
      "code":200,
      "success":"login sucessfull"
        });
  }
  else{
    res.send({
      "code":204,
      "success":"Username and password does not match"
        });
  }
}
else{
  res.send({
    "code":204,
    "success":"Username does not exits"
      });
}
}
});
}
});
module.exports = router;

Am trying to get username and password from user and compare with mysql db and authenticate and send response back

via Raghavendra Ajegaonkar