Questions for Open Authentication Module

I am use this AppStore Module to try Oauth2, I followed the installation guide and configured my app, when I tried to login with google id, I got 500 error,  call back URL failed to process google call back request. I configured the URL using but I was confused, do I need create a microflow with deep link for this URL?   or anything I missed.  by the way, I can’t understand following statement “Don't forget to set your requesthandlers in the cloud ('signin/','callback/' and 'logout/')” how can I create requesthandlers in could?  are they microflow with deep link?  Is there any runnable demo APP? 
1 answers

No deeplinks are needed the url is set for the requesthandler in you google configuration.

In the past request handlers were not available in the sandbox environments (see for example ) this might have changed in the mean time. In a licensed environment the requesthandlers can be setup see