Getting your product ready in Ludei cloud compiler
Remember that you must have a premium Ludei account, otherwise this will not show up (see Prerequisites for more info)
When your premium account is ready go to Configuration under project services.
At the bottom of that list, select Google Playstore and press Update Extensions
There should now be an extra option in the project services called Store
Under Store-->Configuration you must insert your Google Play's Public signature.
You can find your Google Play Public key in your Google Developer Console.
In your product under Services and APIs
Ludei (CocoonJS) is now ready to make IAP work for us!