What is the equivalent to jQuery REST request promises like .success and .error in AngularJS?

Question

It's a pretty self explanatory question. I'm seeing a few ways that people handle errors, I'm wondering if one way is recommended over another, and what is the best practice.

Answer 1

Angular $http provider returns promise, which gives ability to subscribe on error event, because promise resolves in 3 ways: success, error and then.

So it is common to use this promise inside and outside - you can return it from service and use in the controller.

Don't create new promise if you have one, which resolves in the moment you need.