NodeJS Model Routes Controllers Services Code Structure

var mongoose = require('mongoose')
const UserSchema = new mongoose.Schema({
 name: String
})
const User = mongoose.model('User', UserSchema)
module.exports = User;

var express = require('express');
var router = express.Router();
var UserController = require('../controllers/user.controller')
router.get('/', UserController.getUsers)
module.exports = router;

var UserService = require('../services/user.service')
exports.getUsers = async function (req, res, next) {
 // Validate request parameters, queries using express-validator

 var page = req.params.page ? req.params.page : 1;
 var limit = req.params.limit ? req.params.limit : 10;
 try {
 var users = await UserService.getUsers({}, page, limit)
 return res.status(200).json({ status: 200, data: users, message: "Succesfully Users
Retrieved" });
 } catch (e) {
 return res.status(400).json({ status: 400, message: e.message });
 }
}

var User = require('../models/user.model')
exports.getUsers = async function (query, page, limit) {
 try {
 var users = await User.find(query)
 return users;
 } catch (e) {
 // Log Errors
 throw Error('Error while Paginating Users')
 }
}