I'm developing an android application that is going to sell in-app products.
In the google documentation about "Google Play In-App Billing" there is a section called Purchase Status API. After reading this section what I've understood is that purchases verification should be done with the Google Play Android Developer API v1.1 in my backend server.
I've tried to understand the Google Play Android Developer API documentation, but I don't understand what I have to do to get an authorization token.
Please, help me!
Thanks