Ember.js Cookbook

Using dependency injection

The dependency injection pattern is used to declare and instantiate classes of objects and handle dependencies between them. In Ember, we can take objects or services and inject them into routes, controllers, or components.

In this recipe, we'll take a logger object and inject it into our controllers using dependency injection.

How to do it...

1. In a new application, install the moment library and create a new initializer:

   $ bower install moment –save
   $ ember g initializer application
   

   This will install the Bower Moment.js library. We'll use this for our custom logger.

2. Import the Moment library to the Ember project:

   // ember-cli-build.js /*jshint node:true*/ /* global require, module */ var EmberApp = require('ember-cli/lib/broccoli/ember-app'); ...