javascript - Importing multiple AngularJS module's factories -

i wondering if there way import factories i've defined in angularjs module controller without having list them all. have file named foo.js containing:

angular.module("foo", []) .factory("bar1", function() {...}) .factory("bar2", function() {...}) .factory("bar3", function() {...}) .factory("bar4", function() {...}); 

now, in controller.js file have:

angular.module("myapp.controllers", ["foo"]). controller("mainctrl", ["bar1", "bar2", "bar3", "bar4", function(bar1, bar2, bar3, bar4) {     //do stuff various bars }]); 

i wondering if there's elegant way controller, since imports module foo, see factories (or providers, or services, or directives matter of fact).

yes, possible.

you can dynamically load module examine _invokequeue field (see https://stackoverflow.com/a/19412176/646543) in order retrieve names of factories/controllers/etc defined in module.

you can use $injector service retrieve factories.

to demonstrate, i've created quick proof-of-demo. should able directly copy-and-paste introspectmodule factory app functionality.

// creating test services angular.module('test-services', [])     .factory('bar1', function() {         return { 'stuff': function() { return 'calling bar1' } };     })     .factory('bar2', function() {         return { 'stuff': function() { return 'calling bar2' } };     });  angular.module('myapp', ['test-services'])     .factory('introspectmodule', function($injector) {         // factory dynamically return services/controllers/directives/etc         // given module name.          return function (modulename) {             var out = {};             angular.module(modulename)._invokequeue.foreach(function(item) {                 var name = item[2][0];                 out[name] = $injector.get(name);             });             return out;         };     })     .controller('mainctrl', function($scope, introspectmodule) {         // , i'm using         var testservices = introspectmodule('test-services');         $scope.test = testservices.bar1.stuff();     }); 

here's working plnkr of above.

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alternatively, if feels hacky, try creating 'composite' factory:

angular.module("test-services", [])     .factory("bar1", function() {...})     .factory("bar2", function() {...})     .factory("bar3", function() {...})     .factory("bar4", function() {...})     .factory("everybar", ["bar1", "bar2", "bar3", "bar4",          function(bar1, bar2, bar3, bar4) {             return {                 'bar1': bar1,                  'bar2': bar2,                 'bar3': bar3,                 'bar4': bar4             };         }]); 

then, inside controllers, do:

angular.module("myapp.controllers", ["test-services"]). controller("mainctrl", ["everybar", function(everybar) {     everybar.bar1.stuff(); }]); 

obviously, disadvantage of approach results in deal of redundancy when setting services -- we're still manually listing everything.

however, if need use same services multiple times in several different controllers, creating composite service @ least allow avoid having list bunch of parameters in every controller.

it's more explicit first solution, , allows cleanly enumerate services want rather mucking around in internals of angular, , lets extend services, add helper/wrapper functions, etc.