How to dynamically inject modules and services into app and controllers in AngularJS? -

i have app decides if needs specific set of modules inside of application run block. (removed unnecessary logic)

angular.module('myapp', []).run(function () {     if (true) {         //needs have modules injected myapp     } }); 

how can add modules myapp, after angular app has initiated?

once module injected dynamically, how can use injected module's services in other places of app, controllers , directives?

angular.module('myapp').controller(function ($scope, myservice) {  //where myservice belongs dynamically added module      myservice.dostuff(); //this give me error if module wasn't injected }); 

i know it's possible add modules inline array annotation, checking if myservice exists, inside of controllers. i'm trying correct way, instead of having check myservice, thought-out whole code base.

i appreciate help!

you can explicitly bootstrap application module after determining need.

var modulestoinject = ["mydep1"]; // push more modules here needed angular.module("myapp", modulestoinject); angular.bootstrap(document,["myapp"]);