Why am I reading this? Mobile applications are surrounded by so many modules in addition to that, the IN-APP Purchase and Subscriptions play a good amount of role, where you as an owner of the app, can generate revenue by selling consumable and non-consumable goods such as Coins for Games, Subscription plans for your app many things. Now, as you are selling some goods on your app, there must be a way to validate that purchase or get the details. But obviously, you can do it from the app itself as Google does provide SDK for the same. (SDK – Software Development Kit). But, we are living in a world where Android and iOS exist and in a very competitive market! Google Play Developer API gives us the power to check the user’s transaction from the RESTful APIs which leads you to read this blog. With the RESTful API, we can do this call from the BACKEND and leave the app standalone and do other stuff Offering Google Play Developer API lets you manage the two main components in your project Th...