Book Image

MEAN Blueprints

By : Robert Onodi
Book Image

MEAN Blueprints

By: Robert Onodi

Overview of this book

The MEAN stack is a combination of the most popular web development frameworks available—MongoDB, Angular, Express, and Node.js used together to offer a powerful and comprehensive full stack web development solution. It is the modern day web dev alternative to the old LAMP stack. It works by allowing AngularJS to handle the front end, and selecting Mongo, Express, and Node to handle the back-end development, which makes increasing sense to forward-thinking web developers. The MEAN stack is great if you want to prototype complex web applications. This book will enable you to build a better foundation for your AngularJS apps. Each chapter covers a complete, single, advanced end-to-end project. You’ll learn how to build complex real-life applications with the MEAN stack and few more advanced projects. You will become familiar with WebSockets and build real-time web applications, as well as create auto-destructing entities. Later, we will combine server-side rendering techniques with a single page application approach. You’ll build a fun project and see how to work with monetary data in Mongo. You will also find out how to a build real-time e-commerce application. By the end of this book, you will be a lot more confident in developing real-time, complex web applications using the MEAN stack.
Table of Contents (13 chapters)
MEAN Blueprints
About the Author
About the Reviewer

The expenses module

In this module, we are going to treat functionality related to expenses. This is going to be the main module used by our users in the frontend application, because here they will add new expenses and store them in MongoDB through our backend API.

Expense service

The expense service will implement CRUD operations on expenses and one other important feature of it is getting the balance of expenses. In order to create the expense service, we will follow these steps:

  1. Create a file called public/src/expense/expense.service.js.

  2. Define the main logic of the service:

    import { Injectable } from 'angular2/core';
    import { Http, Response, Headers } from 'angular2/http';
    import { Observable } from 'rxjs/Observable';
    import { Subject } from 'rxjs/Subject';
    import { BehaviorSubject } from 'rxjs/Subject/BehaviorSubject';
    import { AuthHttp } from '../auth/index';
    import { contentHeaders, serializeQuery } from '../common/index';
    import { Expense } from './expense.model';