Angular Meta

Angular Meta dyamically updates the document meta tags when navigating views defined in ngRoute's $routeProvider. Simply define the meta data of a page in your $routeProvider config using the meta key and pass an object with key/pair values that match your meta content.

Install

You can install this module using bower like so:

bower install angular-meta-sn --save

Add the angular-meta library file to your index.html file like so:

<script src="path/to/angular-meta-sn/dist/angular-meta.min.js"></script>

Then add the module to your angular app:

angular.module('myApp', ['sn.meta'])

Example Usage

In your index file simply add your meta elements as normal:

<meta name="description" content="Generic site description">

Then in your angular module config use the meta key in your $routeProvider config

  $routeProvider
    .when('/pageone', {
      controller: 'PageOneCtrl'
      meta: {
        description: 'Page one description'
      },
      templateUrl: 'partials/pageone.html'
    })
    .when('/pagetwo', {
      controller: 'PageTwoCtrl'
      meta: {
        description: 'Page two description'
      },
      templateUrl: 'partials/pagetwo.html'
    })

You can also configure a page's meta data in your controller by using the snMeta service in case the data you need is not available in app config:

angular.module('myApp', ['sn.meta'])
  .controller('MyCtrl',[
    'snMeta',
    function (snMeta){
      snMeta.setMetaContent({
        description: 'My page description'
      });
    }
  ])

This project structure is based on the angular-seed application skeleton for a typical AngularJS web app.

The project is preconfigured to install the Angular framework and a bunch of development and testing tools for instant web development gratification.

Getting Started

To get you started you can simply clone the repository and install the dependencies:

Clone the Angular Meta repository

Clone the angular-meta repository using git:

cd path/to/parent/directory
git clone git@github.com:thisissoon/angular-meta.git
cd angular-meta

Install Dependencies

We have two kinds of dependencies in this project: tools and angular framework code. The tools help us manage and test the application.

We get the tools we depend upon via npm, the node package manager.
We get the angular code via bower, a client-side code package manager.
We run regular tasks like code minification via grunt, a javascript task runner.

The following tools require super user privileges so you will need to install them separately like so:

sudo npm install -g bower 
sudo npm install -g grunt-cli

We have preconfigured npm to automatically run bower so we can simply do:

npm install

Behind the scenes this will also call bower install. You should find that you have two new folders in your project.

node_modules - contains the npm packages for the tools we need
app/components - contains the angular framework files and other libraries

Install Libraries

We install our frontend libraries via bower, a client-side code package manager.

All frontend depenancies such as angular will be installed when running npm install. To manually install all dependencies run:

bower install

To install a new library such as bootstrap we can simply do:

bower install bootstrap --save

And this will download the bootstrap package from bower and also update the bower.json file to include that package. You will then need to add the script tag to app/index.html like so:

<script src="path/to/bootstrap.js"></script>

Run the Application

We have preconfigured the project with a simple development web server. The simplest way to start this server is:

grunt server

Now browse to the app at http://localhost:8000/app/.

If you are doing any javascript development you can instead run:

grunt serverjs

To run tests as well every time a javascript file is updated

To watch all files run:

grunt serverall

To run tests or compile less to css when the relevent files are updated.

Running the build script

To create a build to deploy for a production environment simply run:

grunt build

The build files will then be in the dist/ directory.

Creating a new release

To create a new release simply run:

grunt release --setversion X.Y.Z

Where X.Y.Z is the new version number. This will update package.json and bower.json with the new version number and then run grunt build before committing the changes to git.

The build files will then be in the dist/ directory.

Directory Layout


app/                    --> all of the files to be used in production
  components/           --> all of our javascript libraries (installed using bower)
  index.html            --> app layout file (the main html template file of the app)
  js/                   --> javascript files
    {module}.js            --> angular module initialisation
tests/                  --> test config and source files
  e2e/                  --> end-to-end specs
    specs/              
      scenarios.js
    protractor.conf.js  --> config file for running e2e tests with Protractor
  unit/                 --> unit level specs/tests
    {module}.js         --> module test

Testing

There are two kinds of tests in the angular-seed application: Unit tests and End to End tests.

Running Unit Tests

The angular-seed app comes preconfigured with unit tests. These are written in Jasmine, which we run with Grunt.

the configuration is found in Gruntfile.js
the unit tests are found in tests/unit/.

The easiest way to run the unit tests is to do:

grunt test

This script will start the Jasmine test runner to execute the unit tests. You can also run:

grunt serverjs

Where the grunt watch command will sit and watch the source and test files for changes and then re-run the tests whenever any of them change. This is the recommended strategy; if you unit tests are being run every time you save a file then you receive instant feedback on any changes that break the expected code functionality.

End to end testing

The angular-seed app comes with end-to-end tests, again written in Jasmine. These tests are run with the Protractor End-to-End test runner. It uses native events and has special features for Angular applications.

the configuration is found at tests/e2e/protractor.conf.js
the end-to-end tests are found in tests/e2e/specs/

Protractor simulates interaction with our web app and verifies that the application responds correctly. Therefore, our web server needs to be serving up the application, so that Protractor can interact with it. To run end to end tests we first need to install protractor with global permissions. You may need to run this command with superuser privileges:

npm install -g protractor

Once you have ensured that the development web server hosting our application is up and running and WebDriver is updated, you can run the end-to-end tests using the supplied grunt task:

grunt e2e

Behind the scenes this will also run webdriver-manager update && webdriver-manager start. This will download and install the latest version of the stand-alone WebDriver tool and start the Selenium web server. This script will execute the end-to-end tests against the application being hosted on the development server.

Contact

For more information on AngularJS please check out http://angularjs.org/

thisissoon / angular-meta