Btukfyl

I have making an API using express and node.

Here is my app.js

const express = require('express');

const bodyParser = require('body-parser');

const dotenv = require('dotenv');



// setup dotenv to read environment variables

dotenv.config()



// Load Environment Varibles

const env = require('./utils/env');



// INIT MONGODB CONNECTION

require('./mongoose');



// create a new express application

const app = express();



// setup bodyparser middleware to read request body in requests

// we're only reading JSON inputs

app.use(bodyParser.json());



// Listen to API routes

const apiRoutes = require('./routes')

app.use('/api', apiRoutes);



// Start listening to requests

app.listen(env.PORT, () => {

  console.log(`Server started on PORT ${env.PORT}`);

});

And here is the API routes that are being imported

const express = require('express');

const apiController = require('./apiController');

const apiValidator = require('./apiValidator');

const router = express.Router();



router.post('/login', apiValidator.loginUserValidator, apiController.loginUserController);



router.get('/rand', (req, res) => {

  res.send('Some randon text');

});



module.exports = router;

Here is the middleware

const {

  failureResponse

} = require('./../utils/response');

const errorcodes = require('./../utils/errorcodes');



const loginUserValidator = (req, res, next) => {

  const user = req.body;

  if (!user.username) {

    return res.status(400).json(failureResponse(errorcodes.ERROR_INVALID_BODY_PARAMETER, "Invalid username"));

  }



  if (!user.password) {

    return res.status(400).json(failureResponse(errorcodes.ERROR_INVALID_BODY_PARAMETER, "Invalid password"));

  }

  if (user.authTokens) {

    delete user.authTokens;

  }

  next();

};



module.exports = {

  loginUserValidator

};

Here is the controller

const User = require('./../models/user');

const {

  successResponse,

  failureResponse

} = require('./../utils/response');

const errorcodes = require('./../utils/errorcodes');



const loginUserController = async (req, res) => {

  try {

    const user = req.body;

    // find if the user already exists

    const existingUser = await User.findOne({

      username: user.username

    });



    if (existingUser) {

      // user exists. generate token and login user

      console.log('Existing user login');

      const token = existingUser.generateAuthToken();

      return res.status(200).json(successResponse(token));

    } else {

      console.log('New user login');

      const savedUser = await new User(user).save();

      const token = savedUser.generateAuthToken();

      return res.status(200).json(successResponse(token));

    }

  } catch (e) {

    console.log(e);

    return res.status(400).json(failureResponse(errorcodes.ERROR_SERVER_ERROR, "Unable to login user"));

  }

};



module.exports = {

  loginUserController

};

Here the issue is when I try to hit the login route from Postman, I am getting an error which says Could not get any response.

But when I hit the rand route, the output is correct.
So the issue isn't the arrangement of the code.
Why am I not able to use the login route here?