Pseudo code for firing dataLayer

ng-page-views.js

(function(ng) {
 
  ng
    .module('app', ['ngRoute'])
    .run($run);
 
  // Safely instantiate dataLayer
  var dataLayer = window.dataLayer = window.dataLayer || [];
 
  $run.$inject = ['$rootScope', '$location'];
 
  function $run($rootScope, $location) {
 
    $rootScope.$on('$routeChangeSuccess', function() {
 
      dataLayer.push({
        event: 'ngRouteChange',
        attributes: {
          route: $location.path()
        }
      });
 
    });
 
  }
 
})(angular);