CODEWITHSUNDEEP
angularjsangular-http
Volte
Volte

Reputation: 1905

How can I extend the $http service in angular?

Unfortunately, we're stuck running 1.2.26 (will upgrade to 1.2.28 when it's gemified).

In the meantime, how can I patch (heh) $http so that the short-hand patch method is available? I'm pretty new to the whole service/factory/module thing. I've done hours of searching and can't seem to figure it out.

myApp.factory('patchedHTTP', function($http, BasicService) {
  // $http['patch'] = function(url, data, config) {
  //   return $http(angular.extend(config || {}, {
  //     method: 'patch',
  //     url: url,
  //     data: data
  //   }));
  // };
  var extended = angular.extend(BasicService, {});
  extended.createShortMethodsWithData('patch');
  return extended;
});

Above is the best I've got... and it doesn't do anything XD

Upvotes: 6

Views: 2950

Answers (2)

AWolf
AWolf

Reputation: 8980

The module.decorator has been added to the module API in version 1.4. That's why it is not working in 1.2.x.

Please find below a working demo or here at jsfiddle.

It took me a while to implement the patch method because I've missed to return the promise of $http. But now it should be working.

angular.module('patchDemo', [])
.config(function ($provide) {

    $provide.decorator('$http', function ($delegate) {
        // NOTE: $delegate is the original service
		$delegate.patch = function(url, data, config) {
            var paramsObj = angular.extend({}, config || {}, {
                method: 'PATCH',
                url: url,
                data: data
            });

            return $delegate(paramsObj);
        }
		
        return $delegate;
    });
})
.controller('MainController', MainController);

function MainController($http) {
    console.log($http.patch);
    //$http({method: 'PATCH', url: 'http://jsonplaceholder.typicode.com/posts/1', data: {title:'foo'}}); //>>>>>working long version of patch

    $http.patch('http://jsonplaceholder.typicode.com/posts/1', {
        title: 'foo'
    }).then(function(response) {
    	console.log(response);
    });

}
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.2.26/angular.js"></script>
<div ng-app="patchDemo" ng-controller="MainController"></div>

Upvotes: 3

S.Klechkovski
S.Klechkovski

Reputation: 4045

You can do this with an angular decorator.

A service decorator intercepts the creation of a service, allowing it to override or modify the behaviour of the service. The object returned by the decorator may be the original service, or a new service object which replaces or wraps and delegates to the original service. For more information you can check angular documentation.

Example:

var app = angular.module('app');
app.decorator('$http', function ($delegate) {
  // NOTE: $delegate is the original service

  $delegate.patch = function () {
    // do the implementation here
  };

  return $delegate;
});

// usage
app.controller('SomeController', function($http) {
    $http.patch();
});

You can keep this decorator until you upgrade to some newer version and than just safely delete it.

Upvotes: 4

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