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Angularjs Http Then Error Handling


I definitely don’t like the alternative or wrapping every service $http call into a wrapper promise since that’s tedious and painful to read in the service and adds another indirection call Back to top Super-powered by Google ©2010-2016 ( ) Code licensed under The MIT License. So let’s fix it: var getPonies = function() { var defer = $q.defer(); $http.get('/api/ponies').then(function(response) { defer.resolve(response.data); }, function(response) { defer.reject(response); }); return defer.promise; }; That is fine. Instead, simply return response.data in then’s callback. Check This Out

Ninja Squad books Formations Angular 2 19-21 sept. à Paris 26-28 sept. à Lyon 05-07 déc. à Paris 12-14 déc. à Lyon Navigation Les archives Les catégories Suivez-nous Sur Twitter Sur The problem is that people familiar with promises will likely try to chain off of .success, perhaps by transforming and returning new values or new promises. I just started learning AngularJS and spent hours looking for this. javascript ajax angularjs angular-promise angular-http share|improve this question edited Mar 17 '15 at 21:54 this.lau_ 38.4k30141248 asked Jun 13 '13 at 5:58 Federico Elles 1,82061826 add a comment| 5 Answers 5 find this

Angularjs Http Post Error Handling

The only benefit I see to using success() and error() is that they include the original config, which then() does not. You can simply pass it a success callback, and then chain with a call to catch() which only takes an error callback. The difference from then(successCallback, errorCallback) is that catch is chained of the promise returned by then. Terms Privacy Security Status Help You can't perform that action at this time.

Howto prevent chrgrp from clearing “setuid bit”? Underneath the $http callbacks there is still a $q Promise, but the extension functions abstract away some of the ugliness that is internal to the $http service. Rick Strahl December 10, 2014 # re: AngularJs and Promises with the $http Service @Thijs - thanks. Angularjs Promise Error Handling Then when requests fail due to errors an interceptor handles those that are tagged.

Again very unfortunate as this breaks the typical expectation of promises that use .then() for code continuation and expect a single data result object on success calls. Steven September 26, 2015 # re: AngularJs and Promises with the $http Service I cannot thank you enough. Or even not have .success() and .error() altogether and have .then() just return the same values that those methods return to be consistent with the way promises are used elsewhere in https://docs.angularjs.org/api/ng/service/$http I also invite you to follow me on twitter at @helgevold Tweet © Helgevold Consulting, LLC 2015 Skip to content Ignore Learn more Please note that GitHub no longer supports old

Closes #12112 Closes #10508">feat($httpProvider): add 'useLegacyPromiseExtensions' configuration … The legacy methods, `success` and `error`, have been deprecated. Angularjs Http Then Vs Success For convenience/abstraction, AngularJS provides two custom methods on promises returned by $http: .success and .error. Advertisement This behavior provides some additional abilities to do this but it seems very counter intuitive and inconsistent. See below: $http.get('/firstUrl') .success(function(response){ console.log('first success'); console.log(response); return $http.get('/secondUrl').success(function(res){ console.log('nested handler'); console.log(res); }); }) .success(function(response){ console.log('Fires before the nested success handler.

Angularjs Http Interceptor Error Handling

Here’s what this looks like in an factory Angular service implementation:app.factory('albumService', ['$http', '$q'], function albumService($http, $q) { // interface var service = { albums: [], getAlbums: getAlbums }; return service; // Tweets by @RickStrahl AngularJs and Promises with the $http Service October 24, 2014 - from Hood River, OR 9 comments Tweet sponsored by When using the $http service with Angular I’ve Angularjs Http Post Error Handling It's not exactly clean but at least that helps keep service output consistent. Angularjs Http Get Error Handling That’s right, in most cases you don’t need to change your code at all.

Documentation licensed under CC BY 3.0. http://dis-lb.net/error-handling/asp-on-error-handling.php This post is getting long. This finally works. Unnecessary usage of deferred ///////////////////////////////////////////////// function getUser($q, $http) { var deferred = $q.defer(); $http.get('...').then(function(response) { deferred.resolve(response.data); }); return $q.promise; } The above code can be simplified to this: ////////////// // Preferred Angularjs Error Handling Best Practices

Let’s rewrite our code without assuming the service returns an HTTP promise. However, in then callback, you call response.data to retrieve the data. How rich can one single time travelling person actually become? this contact form Thijs December 05, 2014 # re: AngularJs and Promises with the $http Service Nice article! "Unreachable code detected" in the first example.

Browse other questions tagged javascript ajax angularjs angular-promise angular-http or ask your own question. Angularjs Error Message It's not that success doesn't allow chaining – it does, but a side effect of returning the original promise is that all chained success handlers will fire during the same cycle. Set this to `false` to cause `$http` to throw an error if these methods are used in the application.

Reject Promise What about error handling?

In a future release we will remove these methods altogether. Instead we could encourage developers to use the standard $q promise API .then and .catch. And that happens long after getPonies() has returned. Angular Promise Then Error There is very little benefit IMO in working with explicit parameters over working with the response object.

For now it defaults to `true`. pkozlowski-opensource added component: $http type: docs labels Dec 18, 2014 pkozlowski-opensource added this to the Backlog milestone Dec 18, 2014 glebec commented Dec 18, 2014 I'll have a go at adding Recent Posts Animating Transitions in 2 Minutes with ngAnimate and CSS ngAnimate Basics: Pure CSS ng-repeat Animations Angular Interview Question Deep Dive: Implement ng-click Understanding Angular's @ Binding Stop ng-repeating options: navigate here So how does success fall short here?

At this point I have to know that this particular call in my service returns an $http promise, and that I need to call the .success() and .error() functions on it Anish George September 11, 2015 # re: AngularJs and Promises with the $http Service Great Article man. An empire to last a hundred centuries Does the existence of Prawn weapons suggest other hostile races in the District 9 universe? This means there’s really very little need to create a new deferred and pass the associated promise back, much less having to handle the resolving and rejecting code as part of

Using the raw $http Promise as a result, the previous service getAlbums() function could be re-written a bit simpler like this:function getAlbumsSimple() { return $http.get("albums.js") .success(function(data) { service.albums = data; }); Say you want to make an $http call to get the data, but return cached data instead of calling the $http handler if the data is already local. That is simply not possible. rather than relying on the more standard .then() function to handle the callbacks.

Second, the then function returns a new promise, so no need to use $q to create a deferred object and return its associated promise. This inconsistency and the fact that the .then() data object exposes $http transport details likely explains why so many people are wrapping the $http promises into another promise in order to It seems like it would have been a much better choice to allow the .then() method to work the same as .success() and .error() with the same parameter signatures and adding current community chat Stack Overflow Meta Stack Overflow your communities Sign up or log in to customize your list.

My home country claims I am a dual national of another country, the country in question does not. Perhaps I'm wrong in this thought, but I've always considered them to be "helper" functions to make processing HTTP responses easier, rather than requirements for use. Rosa Parks is a [symbol?] for the civil rights movement? What if the HTTP call fails?

Let's do this! Angular member pkozlowski-opensource commented Dec 20, 2014 @petebacondarwin would marking them as depreciated a first step of removing them in 1.5?