---
title: "Create Custom Services in AngularJS"
description: "Creating custom services in AngularJS provides a structured way to organize and share code across your application."
author: "Ashutosh Patel"
published: 2024-06-20
updated: 2024-06-20
canonical: https://www.mindstick.com/blog/304402/create-custom-services-in-angularjs
category: "angular js"
tags: ["javascript", "angular js", "angularjs service"]
reading_time: 3 minutes
---
# Create Custom Services in AngularJS
#### Angular JS Custom Service
[Creating custom](https://www.mindstick.com/interview/34070/creating-custom-annotations-in-java) services in AngularJS makes it [possible to add](https://answers.mindstick.com/qa/51515/how-much-internal-storage-does-each-iphone-model-have-can-internal-storage-be-expanded-is-it-possible-to-add-external-storage-does-the-iphone-have-a-microsd-slot) [business logic](https://answers.mindstick.com/qa/30543/what-is-business-logic), data manipulation, or other reusable [functionality](https://www.mindstick.com/blog/136/using-watermark-functionality-in-textbox-by-jquery) to [your application](https://www.mindstick.com/forum/34702/please-tell-me-what-is-cross-site-scripting-and-how-is-it-harmful-for-your-application).
Here's how you can create and use custom services,
#### Defining a Custom Service
**Using** `service` **method**
You can create [custom service](https://www.mindstick.com/forum/161389/how-do-you-create-and-use-a-custom-service-in-angularjs) using `service` method in Angular JS program
```javascript
// service method for create custom service
angular.module("myApp", [])
.service("Calculate", function(){
// custom service method for add two number
this.Addition = function(a, b){
return a+b;
};
// custom service method for subtract two number
this.Subtract = function(a, b){
return a-b;
};
// custom service method for multiply two number
this.Multiply = function(a, b){
return a*b;
};
// custom service method for divide two number
this.Division= function(a, b){
return a/b;
}
});
```
## In the example above
- `Calculate` is the name of custom service.
- `this.Addition`, `this.Subtract`, `this.Multiply`, and `this.Division` are the method defined in the service that are accessible outside the service.
**Injecting Dependencies**\
If your service depends on other services or utilities, put them in the service as parameters.
**Also, Read:** [What is built-in services in AngularJS?](https://www.mindstick.com/interview/33917/what-is-built-in-services-in-angularjs)
#### Using Custom Services
Once defined, you can inject and use custom services in controllers, directives, or other applications,
```javascript
angular.module("myApp", [])
.controller("myController", function($scope, Calculate){
// take two integer variable and assign value
$scope.value1 = 20;
$scope.value2 = 5;
// assign result returned by custom service methods
$scope.AddisionRes = Calculate.Addition($scope.value1, $scope.value2);
$scope.SubtractRes = Calculate.Subtract($scope.value1, $scope.value2);
$scope.MultiplyRes = Calculate.Multiply($scope.value1, $scope.value2);
$scope.DivisionRes = Calculate.Division($scope.value1, $scope.value2);
})
```
**Example-** \
Here is a simplified example of using a custom service (`Calculate`) in AngularJS,
```html
Custom Service Example