NodeJS with mongoDB JSONFormat issue

I am new to NodeJS and MongoDb. I am facing an issue on jsonObject.

Step 1: I have installed NodeJS and MongoDB sucessfully in my ubuntu 16.04 system.

Step 2: I created the all server setup with package.json file in my project folder.

Step 3: I created the server.js file Like below.

server.js File

    express = require('express'),
    routes = require('./api/routes/todoListRoutes');
    mongoose = require('mongoose'),
    Task = require('./api/models/todoListModels'),
    bodyParser = require('body-parser');
    app = express(),
    port = process.env.PORT || 3000,
    mongoose.Promise = global.Promise;
    mongoose.connect('mongodb://localhost/Tododb');
    app.use(bodyParser.urlencoded({ extended: true }));
    app.use(bodyParser.json());
    routes(app);
    app.listen(port);
    console.log('todo list RESTful API server started on: ' + port);

then I created Model file for storing the records.

todoListModels.js

    'use strict';
    var mongoose = require('mongoose');
    var Schema = mongoose.Schema;


    var TaskSchema = new Schema({
      name: {
        type: String,
        Required: 'Kindly enter the name of the task'
      },
      Created_date: {
        type: Date,
        default: Date.now
      },
      status: {
        type: [{
          type: String,
          enum: ['pending', 'ongoing', 'completed']
        }],
        default: ['pending']
      }
    },{ versionKey: false }//Updated);

    module.exports = mongoose.model('Tasks', TaskSchema);

todoListRoutes.js

'use strict';
module.exports = function(app) {
  var todoList = require('../controllers/todoListController');
  app.route('/tasks').get(todoList.list_all_tasks).post(todoList.create_a_task);
  app.route('/tasks/:taskId').get(todoList.read_a_task).put(todoList.update_a_task).delete(todoList.delete_a_task);
};

todoListController.js

'use strict';


mongoose = require('mongoose'),
Task = mongoose.model('Tasks');

exports.list_all_tasks = function(req, res) {
  Task.find({}, function(err, task) {
    if (err)
      res.send(err);
    res.json(task);
  });
};

exports.create_a_task = function(req, res) {
  var new_task = new Task(req.body);
  new_task.save(function(err, task) {
    if (err)
      res.send(err);
    res.json(task);
  });
};


exports.read_a_task = function(req, res) {
  Task.findById(req.params.taskId, function(err, task) {
    if (err)
      res.send(err);
    res.json(task);
  });
};


exports.update_a_task = function(req, res) {
  Task.findOneAndUpdate(req.params.taskId, req.body, {new: true}, function(err, task) {
    if (err)
      res.send(err);
    res.json(task);
  });
};


exports.delete_a_task = function(req, res) {
  Task.remove({
    _id: req.params.taskId
  }, function(err, task) {
    if (err)
      res.send(err);
    res.json({ message: 'Task successfully deleted' });
  });
};

Then i ran the node server by nodemon server.js Server successfully ran. then, I try to get the data from the database using POST MAN Application.

So, I did like below,

GET method: localhost:3000/tasks

it successfully ran and it produced result.

like below,

[
  {
  "_id": "58ba4c9c03e10b16d140775f",
   "name": "Karthik",
   "__v": 0,
   "status": [
   "pending"
  ],
  "Created_date": "2017-03-04T05:11:56.590Z"
}]

My problem is here,

1)I didn't created the __v and id fields here. Then why it is coming? 2)Then i need proper date format in Created_date field. like "dd-MM-yyyy hh:mm". How to do it?

Help will be appreciated.Thank you.

UPDATE

When i try to install moment, following error occurs

notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})