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AngularJS CRUD application demo

Purpose

The idea is to demonstrate how to write a typical, non-trivial CRUD application using AngularJS. To showcase AngularJS in its most advantageous environment we've set out to write a simplified project management tool supporting teams using the SCRUM methodology. The sample application tries to show best practices when it comes to: folders structure, using modules, testing, communicating with a REST back-end, organizing navigation, addressing security concerns (authentication / authorization).

This sample application is featured in our book where you can find detailed description of the patterns and techniques used to write this code:

We've learned a lot while using and supporting AngularJS on the mailing list and would like to share our experience.

Stack

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Build

It is a complete project with a build system focused on AngularJS apps and tightly integrated with other tools commonly used in the AngularJS community:

Installation

Platform & tools

You need to install Node.js and then the development tools. Node.js comes with a package manager called npm for installing NodeJS applications and libraries.

  • Install node.js (requires node.js version >= 0.8.4)

  • Install Grunt-CLI and Karma as global npm modules:

    npm install -g grunt-cli karma

(Note that you may need to uninstall grunt 0.3 globally before installing grunt-cli)

Get the Code

Either clone this repository or fork it on GitHub and clone your fork:

git clone https://github.com/angular-app/angular-app.git
cd angular-app

App Server

Our backend application server is a NodeJS application that relies upon some 3rd Party npm packages. You need to install these:

  • Install local dependencies (from the project root folder):

    cd server
npm install
cd ..

    (This will install the dependencies declared in the server/package.json file)

Client App

Our client application is a straight HTML/Javascript application but our development process uses a Node.js build tool Grunt.js. Grunt relies upon some 3rd party libraries that we need to install as local dependencies using npm.

  • Install local dependencies (from the project root folder):

    cd client
npm install
cd ..

    (This will install the dependencies declared in the client/package.json file)

Building

Configure Server

The server stores its data in a MongoLab database.

  • Create an account at MongoLab - it's free: [https://mongolab.com/signup/].

  • Create a database to use for this application: [https://mongolab.com/create]

  • Grab your API key: [https://mongolab.com/user?username=YOUR_USERNAME_HERE]

  • Edit server/config.js to set your MongoLab API Key and the name of the database you created.

    mongo: {
    dbUrl: 'https://api.mongolab.com/api/1',    // The base url of the MongoLab DB server
    apiKey: 'YOUR_API_KEY_HERE',                // Our MongoLab API key
},
security: {
    dbName: 'YOUR_DB_NAME_HERE',                // The name of database that contains the security information
    usersCollection: 'users'                    // The name of the collection contains user information
},

  • Run our initialization script to initialize the database with a first admin user (admin@abc.com : changeme).

    `node server/initDB.js`

Configure Client

The client specifies the name of the MongoDB to use in client/src/app/app.js. If your DB is not called "ascrum" then you need to change the MONGOLAB_CONFIG constant:

angular.module('app').constant('MONGOLAB_CONFIG', {
  baseUrl: '/databases/',
  dbName: 'ascrum'
});

Build the client app

The app made up of a number of javascript, css and html files that need to be merged into a final distribution for running. We use the Grunt build tool to do this.

  • Build client application:

    cd client
grunt build
cd ..

It is important to build again if you have changed the client configuration as above.

Running

Start the Server

  • Run the server

    cd server
node server.js
cd ..

  • Browse to the application at [http://localhost:3000]

Browser Support

We only regularly test against Chrome 29 and occasionally against Firefox and Internet Explorer. The application should run on most modern browsers that are supported by the AngularJS framework. Obviously, if you chose to base your application on this one, then you should ensure you do your own testing against browsers that you need to support.

Development

Folders structure

At the top level, the repository is split into a client folder and a server folder. The client folder contains all the client-side AngularJS application. The server folder contains a very basic Express based webserver that delivers and supports the application. Within the client folder you have the following structure:

  • node_modules contains build tasks for Grunt along with other, user-installed, Node packages
  • dist contains build results
  • src contains application's sources
  • test contains test sources, configuration and dependencies
  • vendor contains external dependencies for the application

Default Build

The default grunt task will build (checks the javascript (lint), runs the unit tests (test:unit) and builds distributable files) and run all unit tests: grunt (or grunt.cmd on Windows). The tests are run by karma and need one or more browsers open to actually run the tests.

  • cd client
  • grunt
  • Open one or more browsers and point them to [http://localhost:8080/__test/]. Once the browsers connect the tests will run and the build will complete.
  • If you leave the browsers open at this url then future runs of grunt will automatically run the tests against these browsers.

Continuous Building

The watch grunt task will monitor the source files and run the default build task every time a file changes: grunt watch.

Build without tests

If for some reason you don't want to run the test but just generate the files - not a good idea(!!) - you can simply run the build task: grunt build.

Building release code

You can build a release version of the app, with minified files. This task will also run the "end to end" (e2e) tests. The e2e tests require the server to be started and also one or more browsers open to run the tests. (You can use the same browsers as for the unit tests.)

  • cd client
  • Run grunt release
  • Open one or more browsers and point them to [http://localhost:8080/__test/]. Once the browsers connect the tests will run and the build will complete.
  • If you leave the browsers open at this url then future runs of grunt will automatically run the tests against these browsers.

Continuous testing

You can have grunt (karma) continuously watch for file changes and automatically run all the tests on every change, without rebuilding the distribution files. This can make the test run faster when you are doing test driven development and don't need to actually run the application itself.

  • cd client
  • Run grunt test-watch.
  • Open one or more browsers and point them to [http://localhost:8080/__test/].
  • Each time a file changes the tests will be run against each browser.

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Reference application for AngularJS

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