Example controller in AngularJS, declared separatedly

simpleConstructor.js

var MyController = function($scope, ApiService) {
  $scope.awesomeThings = ['everything']; // everything is awesome
  $scope.randomStuff = null;
  
  ApiService.getStuff('random').then(function(retrievedStuff) {
    $scope.randomStuff = retrievedStuff;
  });
};

angular.module('MyApp').controller('MyController', MyController);