Skip to main content

What is services? How to create services in angularjs? how to use it?

Hello everyone, I am going  to share the code sample for creating services and calling the services in angular controller.  

The Angular services are objects that provide the way to handle the services communication over the browser(XMLHttpRequest object) using the $http API.


Angular services are used to share the data in the controller, directive, filters etc. over the your apps.

The services are create a  singleton instance and  the services are used within the apps over the name of the service.

The services methods are created using the this keywords and angular module. please see the detail in example.


The example in detail as give below.

The AngularJs code sample

        var baseURL = "http://localhost:9669/";
        var cartURL = "api/AddToCart_API/GetMyCarts/";
        var EmailID = "anil.singh581@gmail.com";
        var app = angular.module('cartOneAp', []);

        //This is services used to call the cast API.
        app.service("myCarts", function ($http) {
            this.getShopingCart = function (urls, EmailID) {
                return $http({
                    method: 'GET',
                    url: baseURL + urls + '/' + EmailID
                });
            };
        });

        //This is base controller used to call the getShopingCart details.
        app.controller('baseController', function ($scope, myCarts) {
            //This is default constant for shoping cart
            $scope.carts = null;
            $scope.email = EmailID;

            //Calling services by baseController
            myCarts.getShopingCart(cartURL, $scope.email).then(function (resp) {
                if (resp !== undefined && resp !== null) {
                    if (resp.data !== undefined && resp.data !== null) {
                        $scope.carts = resp.data;
                        console.log($scope.carts);
                    }
                }
            });
        });

The HTML Code sample as given below.

< div ng-app="cartOneAp">
    <div>
        <div ng-controller="baseController">
            <ul>
                <a href="/Products/Cart/{{ProductID}}"><l>{{ProductName}}}</l></a>
            </ul>
        </div>
    </div>
</ div >

The Full Live (Angular +HTML) code as given below.

<!DOCTYPE html>
<html>

<head>
    <link rel="stylesheet" href="style.css">
    <script src="https://code.angularjs.org/1.3.14/angular.js"></script>
    <script>

        var baseURL = "http://localhost:9669/";
        var cartURL = "api/AddToCart_API/GetMyCarts/";
        var EmailID = "anil.singh581@gmail.com";
        var app = angular.module('cartOneAp', []);

        //This is services used to call the cast API.
        app.service("myCarts", function ($http) {
            this.getShopingCart = function (urls, EmailID) {
                return $http({
                    method: 'GET',
                    url: baseURL + urls + '/' + EmailID
                });
            };
        });

        //This is base controller used to call the getShopingCart details.
        app.controller('baseController', function ($scope, myCarts) {
            //This is default constant for shoping cart
            $scope.carts = null;
            $scope.email = EmailID;

            //Calling services by baseController
            myCarts.getShopingCart(cartURL, $scope.email).then(function (resp) {
                if (resp !== undefined && resp !== null) {
                    if (resp.data !== undefined && resp.data !== null) {
                        $scope.carts = resp.data;
                        console.log($scope.carts);
                    }
                }
            });
            //End : This is for shoping cart
        });
    </script>
</head>

<body ng-app="cartOneAp">
    <div>
        <div ng-controller="baseController">
            <ul>
                <a href="/Products/Cart/{{ProductID}}"><l>{{ProductName}}}</l></a>
            </ul>
        </div>
    </div>
</body>


</html>

The output, go to link http://embed.plnkr.co/BiOow9/preview

Thank you!
By Anil Singh | Rating of this article (*****)

Popular posts from this blog

nullinjectorerror no provider for httpclient angular 17

In Angular 17 where the standalone true option is set by default, the app.config.ts file is generated in src/app/ and provideHttpClient(). We can be added to the list of providers in app.config.ts Step 1:   To provide HttpClient in a standalone app we could do this in the app.config.ts file, app.config.ts: import { ApplicationConfig } from '@angular/core'; import { provideRouter } from '@angular/router'; import { routes } from './app.routes'; import { provideClientHydration } from '@angular/platform-browser'; //This (provideHttpClient) will help us to resolve the issue  import {provideHttpClient} from '@angular/common/http'; export const appConfig: ApplicationConfig = {   providers: [ provideRouter(routes),  provideClientHydration(), provideHttpClient ()      ] }; The appConfig const is used in the main.ts file, see the code, main.ts : import { bootstrapApplication } from '@angular/platform-browser'; import { appConfig } from '

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin

List of Countries, Nationalities and their Code In Excel File

Download JSON file for this List - Click on JSON file    Countries List, Nationalities and Code Excel ID Country Country Code Nationality Person 1 UNITED KINGDOM GB British a Briton 2 ARGENTINA AR Argentinian an Argentinian 3 AUSTRALIA AU Australian an Australian 4 BAHAMAS BS Bahamian a Bahamian 5 BELGIUM BE Belgian a Belgian 6 BRAZIL BR Brazilian a Brazilian 7 CANADA CA Canadian a Canadian 8 CHINA CN Chinese a Chinese 9 COLOMBIA CO Colombian a Colombian 10 CUBA CU Cuban a Cuban 11 DOMINICAN REPUBLIC DO Dominican a Dominican 12 ECUADOR EC Ecuadorean an Ecuadorean 13 EL SALVADOR

Angular 2, 4, 5, 6, 7, 8 and 9 Interview Questions and Answers -Books

» Are you preparing for Angular Interview? Buy this book (Including Angular 8, 7, 6, 5,4, 2) Interview Q/A Interview Q/A Interview Q/A Interview Q/A Interview Q/A Interview Q/A Interview Q/A » A Complete Guide Book of Angular 9 This is a concise, complete overview of the key aspects of Angular 9. It is fully up to date with the latest release of Angular. This article provide all the important aspects required for angular developers looking for brief and useful content... Posted In Angular 9 » A Complete Guide Book of Angular 8 This is a concise, complete overview of the key aspects of Angular 9. It is fully up to date with the latest release of Angular. This article provide all the important aspects required for angular developers looking for brief and useful content... Posted In Angular 8 » A Complete Guide Book of Angular 7 This is a concise, complete overview of the key aspects of Angular 7. It is fully up to date with the latest release of Angular. This

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü   Tables and data grids ü   Notifications ü   Loader ü   Calendar ü   Display time, date and age ü   Progress Bar ü   Tooltip ü   Overlay ü   Icons ü   Menu ü   Charts ü   Map ü   Pdf viewer ü   And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan You was inspired by Angular and the Vue.js 2 components looks like -