How to call a method within the controller or service in AngularJS framework

it is a good idea to reuse some function when we implement the project.

it is quite easy to do it in C#.

in AngularJS is a little tricky.

we must define the reference controller or service before we can use it to call the method.

here is the sample code to demostrate the approach.

customerApp.service('customerService', ['$http', function ($http) {
    var self = this;
  
  this.getCustomers = function ($scope) {

  }

 this.MergeCustomers = function ($scope) {
        return $http({
            method: "POST",
            url: "/AngularJS/api/Customer/Customer",
            dataType: 'json',
            data: {

            },
            headers: { 'Content-Type': 'application/json' }
        }).success(function (serverData) {
            self.getCustomers($scope);
        });
    };