[MEAN Stack] First API with node. js, Express and MongoDB

Source: Internet
Author: User


earn how to import data into your MongoDB and then use Express to serve a simple Node.js API.




Import data into MongoDB:


For exmaple, you have an data.json file and contains some data.


1. Start Mongod service:


//in the cmd

$ mongod

2. Open a new Tab, import the data:


mongoimport --db simple --collection people --jsonArray data.json

Import data.json file (a json array file), set database as simple, name it as people collection.


Read More: http://docs.mongodb.org/manual/reference/program/mongoimport/




You can play around with those data:


// in cmd


$ mongo

Enter the mongodb cmd-clinet.




Find the data:


db.simple.find();

db.simple.findOne();

Remove data:


db.simple.remove()



Set up Server:


npm install -S express  mongoose cors

Server.js:


/**

* Created by Answer1215 on 12/9/2014.

*/

‘use strict‘;


var expres = require(‘express‘);

var mongoose = require(‘mongoose‘);

mongoose.connect(‘mongodb://localhost/simple‘);

var cors = require("cors");


var personSchema = {

   firstName:String,

   lastName:String,

   email:String

};


//create a person model, and rename db as people

var Person = mongoose.model(‘Person‘, personSchema, ‘people‘);

var app = expres();

app.use(cors());


app.get(‘/people‘, function(request, response){

   Person.find(function(err, data) {

       response.json(200, data);

   })

});


app.listen(3000);



app.js:


/**

* Created by Answer1215 on 12/9/2014.

*/

‘use strict‘;


function MainCtrl(PeopleService) {

   var vm = this;

   vm.people = [];

   

   vm.getPeople = PeopleService.getPeople().then(function(response) {

       vm.people = response.data;

   });

}


function PeopleService($http) {


   var PeopleService = {};

   PeopleService.getPeople = function() {

        return $http.get(‘http://localhost:3000/people‘);

   }


   return PeopleService;

}


angular.module(‘app‘,[])

   .controller(‘MainCtrl‘, MainCtrl)

   .service(‘PeopleService‘, PeopleService);



index.html:


<!DOCTYPE html>

<html>

<head lang="en">

   <meta charset="UTF-8">

   <title></title>

</head>

<body ng-app="app">


   <div ng-controller="MainCtrl as vm">

       <ul>

           <li ng-repeat="person in vm.people">{{person.firstName}}</li>

       </ul>

   </div>


   <script src="bower_components/angular/angular.min.js"></script>

   <script src="app.js"></script>

</body>

</html>



[MEAN Stack] First API with Node.js, Express and MongoDB


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