AngularJs Circular Dependency for Interceptor

Question

I have the following circular dependency:

            $http
            /   \
           /     \
          /       \
         /         \
LoginManager------Interceptor
 (service)         (factory)

This Circular dependency only emerged after I added the code for Interceptor.

Interceptor will call the logout function in LoginManager in case a certain response in intercepted.

From what I see, only solution is to move interceptor code inside the LoginManager service as an anonymous factory

Is there any better way?

Possible duplicate of AngularJS: Injecting service into a HTTP interceptor (Circular dependency) — Léo Lam
– Léo Lam, Commented Mar 21, 2016 at 18:28

bumpy · Accepted Answer · 2016-03-21 18:26:51Z

6

You can avoid the circular dependency by using the injector service to get an instance of LoginManager at runtime.

var loginManager = $injector.get('LoginManager');

Just make sure you use this code inside one of the methods of the interceptor (e.g responseError) and not directly in your interceptor creation code.

edited Mar 21, 2016 at 18:26

answered Mar 20, 2016 at 20:52

bumpy

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4 Comments

Ishan Khare Over a year ago

using $injector does not have any effect on the circular dependency.

bumpy Over a year ago

Did you remove LoginManager from the dependency list of Interceptor?

Ishan Khare Over a year ago

my bad, the $injector.get thing needs to be inside the return object of the interceptor. I think it would be good if you mention it in the answer.

KreepN Over a year ago

The last sentence in this answer saved my butt, none of the answers on SO, including the link in the comment section of the question make that clear. Thanks so much dude (I'm aware this comment is in bad form but w/e)

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