users.js

var User = require('../models/User');

module.exports.controller = (app) => {
	
  // get all users
	app.get('/users', (req, res) => {
		User.find({}, 'name email', function(error, users) {
      if(error){ console.log(error); }
      res.send({
        users: users
      })
    })
	})
  
  // get a single user details
  app.get('/users/:id', (req, res) => {
    User.findById(req.params.id, 'name email', function(error, user){
      if(error){ console.log(error); }
      res.send(user)
    })
  })
  
  // add a new user
  app.post('/users', (req, res) => {
    const user = new User({
      name: req.body.name,
      email: req.body.email
    })
    
    user.save(function(error, user){
      if(error){ console.log(error); }
      res.send(user)
    })
  })
  
  // update a user
  app.put('/users/:id', (req, res)=>{
    User.findById(req.params.id, 'name email', function(error, user){
      if(error) { console.log(error); }
      
      user.name = req.body.name
      user.email = req.body.email
      user.save(function(error, user){
        if(error){ console.log(error); }
        res.send(user)
      })
    })
  })
  
  // delete a user
  app.delete('/users/:id', (req, res) => {
    User.remove({
      _id: req.params.id
    }, function(error, user){
      if(error){ console.error(error); }
      res.send({ success: true})
    })
  })
  
}