• [MEAN Stack] First API -- 1. with Node.js, Express and MongoDB


    Learn 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>
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  • 原文地址:https://www.cnblogs.com/Answer1215/p/4154576.html
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