Injecting an error in AngularJS factory

Question

Injecting an error in AngularJS factory

Every time I try to inject a Factory in angularJS, I encounter an error:

app.js :

angular.module('myapp', [])

myfactory.js :

angular.module('myapp', [])
.factory('httpService', function($http, $timeout) {

});

In the Controller: test.js :

angular.module('myapp', [])
.controller('test',  function($scope, $timeout, $sce, $http, httpService) {

  $scope.submit = function() {
  }
});

Despite having used this factory successfully in other projects, when I include httpService I get an error. Everything appears to be correct according to the code provided. Here is the exact Error Message:

angular.min.js:92 Error: [$injector:unpr] http://errors.angularjs.org/1.2.25/$injector/unpr?p0=httpServiceProvider%20%3C-%20httpService
at Error (native)
at http://localhost:81/chah/assets/js/angularjs/angular.min.js:6:450
at http://localhost:81/chah/assets/js/angularjs/angular.min.js:36:202
at Object.c [as get] (http://localhost:81/chah/assets/js/angularjs/angular.min.js:34:305)
at http://localhost:81/chah/assets/js/angularjs/angular.min.js:36:270
at c (http://localhost:81/chah/assets/js/angularjs/angular.min.js:34:305)
at d (http://localhost:81/chah/assets/js/angularjs/angular.min.js:35:6)
at Object.instantiate (http://localhost:81/chah/assets/js/angularjs/angular.min.js:35:165)
at http://localhost:81/chah/assets/js/angularjs/angular.min.js:67:419
at http://localhost:81/chah/assets/js/angularjs/angular.min.js:54:25

javascript angularjs angularjs-factory angularjs-injector

Answer 1

Answer №1

Make sure to refer to the link provided in your error message (https://docs.angularjs.org/error/$injector/unpr?p0=httpServiceProvider%20%3C-%20httpService):

Ensure that you only create your module once:

angular.module('myapp', [])

After creating it, continue to use it without brackets [] like this:

angular.module('myapp').factory ...
angular.module('myapp').controller ...

Answer 2

Make sure to refer to the link provided in your error message (https://docs.angularjs.org/error/$injector/unpr?p0=httpServiceProvider%20%3C-%20httpService):

Ensure that you only create your module once:

angular.module('myapp', [])

After creating it, continue to use it without brackets [] like this:

angular.module('myapp').factory ...
angular.module('myapp').controller ...

Answer 3

Answer №2

The issue at hand arises from the way the httpService and controller were created using the setter method, such as angular.module('myapp', []), instead of the correct getter method, like angular.module('myapp'). Angular only allows defining a module once, so redefining it causes an error.

To fix this in app.js, define the module as follows:

angular.module('myapp', []) ;

In myfactory.js, use the getter syntax by removing the , []:

angular.module('myapp')
.factory('httpService', function($http, $timeout) {
});

And in test.js:

angular.module('myapp')
.controller('test',  function($scope, $timeout, $sce, $http,  httpService) {

$scope.submit = function() {
}
});

For more information, refer to the official documentation.

Answer 4

The issue at hand arises from the way the httpService and controller were created using the setter method, such as angular.module('myapp', []), instead of the correct getter method, like angular.module('myapp'). Angular only allows defining a module once, so redefining it causes an error.

To fix this in app.js, define the module as follows:

angular.module('myapp', []) ;

In myfactory.js, use the getter syntax by removing the , []:

angular.module('myapp')
.factory('httpService', function($http, $timeout) {
});

And in test.js:

angular.module('myapp')
.controller('test',  function($scope, $timeout, $sce, $http,  httpService) {

$scope.submit = function() {
}
});

For more information, refer to the official documentation.

Answer 5

Answer №3

Affirmative,

The process you are engaging in involves re-creating your application

To streamline this, it is recommended to define the app once and utilize that instance throughout

var app = angular.module('myapp', []);

app.factory('httpService', function($http, $timeout) {

});

app.controller('test',  function($scope, $timeout, $sce, $http, httpService) {

  $scope.submit = function() {
  }
});

Alternatively, if you wish to retrieve your app, you can use the syntax angular.module('myapp') this will return 'myapp', but including [], signals Angular to create an app instead of fetching it

Answer 6

Affirmative,

The process you are engaging in involves re-creating your application

To streamline this, it is recommended to define the app once and utilize that instance throughout

var app = angular.module('myapp', []);

app.factory('httpService', function($http, $timeout) {

});

app.controller('test',  function($scope, $timeout, $sce, $http, httpService) {

  $scope.submit = function() {
  }
});

Alternatively, if you wish to retrieve your app, you can use the syntax angular.module('myapp') this will return 'myapp', but including [], signals Angular to create an app instead of fetching it

Answer 7

Answer №4

Here is an example of how the code should be written:

angular.module('myapp', [])
.service('apiService', function($http, $timeout) {
  // Service logic here
});
.controller('exampleCtrl', function($scope, $timeout, $sce, $http, apiService) {
  // Controller logic here

  $scope.submit = function() {
    // Submit function logic here
  }
});

Answer 8

Here is an example of how the code should be written:

angular.module('myapp', [])
.service('apiService', function($http, $timeout) {
  // Service logic here
});
.controller('exampleCtrl', function($scope, $timeout, $sce, $http, apiService) {
  // Controller logic here

  $scope.submit = function() {
    // Submit function logic here
  }
});

Injecting an error in AngularJS factory

Answer №1

Answer №2

Answer №3

Answer №4

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