How do I use an injected angular module's service in my app?

Question

I'm venturing into injecting different angular modules into my app. One module I created contains a service that I would like to inject into a controller. Does anyone have a good explanation of how to do this?

My app.js:

angular.module('myApp', ['ngRoute', 'myModule']);

myModule which contains a service I want to inject:

angular.module('myModule')
  .factory('coolService', ['$rootScope', function ($rootScope) {
    return {
      // API calls
    }]);

An example of how to correctly inject 'coolService' into this controller would answer my question nicely:

angular.module('myApp')
  .controller('myController', ['$scope', function ($scope) {
    ...
  }]);

Answer 1

angular.module('myApp')
  .controller('myController', ['$scope', 'coolService', function ($scope, coolService) {
   coolService.do...
 }]);

thats all...