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Angular HTTP Interceptor

Generic httpInterceptor step by step
Create an HTML file with the following content:

<!DOCTYPE html>
 <title>Angular Interceptor Sample</title>
 <script src=""></script>
 <script src="app.js"></script>
 <script src="appController.js"></script>
 <script src="genericInterceptor.js"></script>
<body ng-app="interceptorApp">
 <div ng-controller="appController as vm">
 <button ng-click="vm.sendRequest()">Send a request</button>

Add a JavaScript file called 'app.js':

var interceptorApp = angular.module('interceptorApp', []);
interceptorApp.config(function($httpProvider) {

Add another one called 'appController.js':

(function() {
 'use strict';
 function appController($http) {
 var vm = this;
 vm.sendRequest = function(){
 angular.module('interceptorApp').controller('appController',['$http', appController]);

And finally the file containing the interceptor itself 'genericInterceptor.js':

(function() {
 "use strict";
function genericInterceptor($q) {
 this.responseError = function (response) {
 return $q.reject(response);
 this.requestError = function(request){
 if (canRecover(rejection)) {
 return responseOrNewPromise
 return $q.reject(rejection);
 this.response = function(response){
 return response;
 this.request = function(config){
 return config;
 angular.module('interceptorApp').service('genericInterceptor', genericInterceptor);

The 'genericInterceptor' cover the possible functions which we can override adding extra behavior to our application


In this page (written and validated by ) you learned about AngularJS HTTP Interceptor . What's Next? If you are interested in completing AngularJS tutorial, your next topic will be learning about: AngularJS Session storage.

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