mean-demo
   -app
      -models
         -student.js
   -config
      -db.js
   -public
      -js
         -controllers
            -MainCtrl.js
            -StudentCtrl.js
         -services
            -StudentService.js
         -app.js
         -appRoutes.js
      -views
         -home.html
         -student.html
      -index.html
   -.bowerrc
   -bower.json
   -package.json
   -server.js

$ npm install

$ bower install

// modules =================================================
const express = require('express');
const app = express();
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
var methodOverride = require('method-override');
// set our port
const port = 3000;
// configuration ===========================================
// configure body parser
app.use(bodyParser.json()); // parse application/json

// parse application/vnd.api+json as json
app.use(bodyParser.json({ type: 'application/vnd.api+json' }));

// parse application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: true }));

// override with the X-HTTP-Method-Override header in the request.
app.use(methodOverride('X-HTTP-Method-Override')); simulate DELETE/PUT

// set the static files location /public/img will be /img for users
app.use(express.static(__dirname + '/public'));

// config files
var db = require('./config/db');
console.log("connecting--",db);
mongoose.connect(db.url); //Mongoose connection created

// grab the student model
var Student = require('./app/models/student');
function getStudents(res) {
   Student.find(function (err, students) {
      // if there is an error retrieving, send the error. nothing after res.send(err) will execute
         if (err) {
            res.send(err);
         }
         res.json(students); // return all todos in JSON format
      });
   };
app.get('/api/studentslist', function(req, res) {
   getStudents(res);
});
app.post('/api/students/send', function (req, res) {
   var student = new Student(); // create a new instance of the student model
   student.name = req.body.name; // set the student name (comes from the request)
   student.save(function(err) {
      if (err)
         res.send(err);
         getStudents(res);
   });
});
app.delete('/api/students/:student_id', function (req, res) {
   Student.remove({
      _id: req.params.student_id
      }, function(err, bear) {
         if (err)
            res.send(err);
         getStudents(res);
      });
});
// startup our app at http://localhost:3000
app.listen(port, () ⇒ console.log(`Example app listening on port ${port}!`));

angular.module('StudentService', [])
// super simple service
// each function returns a promise object
.factory('Student', ['$http',function($http) {
   return {
      get : function() {
         return $http.get('/api/students');
      },
      create : function(student) {
         return $http.post('/api/students/send', student);
      },
      delete : function(id) {
         return $http.delete('/api/students/' + id);
      }
   }
}]);

angular.module('MainCtrl', []).controller('MainController',
   ['$scope','$http','Student',function($scope, $http, Student) {
   $scope.formData = {};
   $scope.loading = true;
   $http.get('/api/studentslist').
   then(function(response) {
      $scope.student = response.data;
   });
   // CREATE 
   // when submitting the add form, send the text to the node API
   $scope.createStudent = function() {
      // validate the formData to make sure that something is there
      // if form is empty, nothing will happen
      if ($scope.formData.name != undefined) {
         $scope.loading = true;
         // call the create function from our service (returns a promise object)
         Student.create($scope.formData)
         // if successful creation, call our get function to get all the new Student
         .then(function (response){
            $scope.student = response.data;
            $scope.loading = false;
            $scope.formData = {}
         },    function (error){
         });
      }
   };
   // DELETE
   ==================================================================
   // delete a todo after checking it
   $scope.deleteStudent = function(id) {
      $scope.loading = true;
      Student.delete(id)
      // if successful delete, call our get function to get all the new Student
      .then(function(response) {
         $scope.loading = false;
         new list of Student
      });
   };
}]);

$ npm start