Retrieving IAP user's Non-Consumable Purchase History on Scene Load, iOS

Does anyone have any example code in order to send a call to the iOS App Store immediately when a scene loads to check for whether an IAP non-consumable product has already been purchased by the user, and then to trigger a response?

I have a button in a scene to purchase a non-consumable IAP product on click; the button is coded to de-activate once the product has been purchased successfully. However, every time the scene re-loads, the button re-appears even if the user has already successfully completed the IAP and de-activated the button.

 

You could store the purchase information in PlayerPrefs, or other local or cloud storage. And could you just not set a state in your app that persists this information? Preferably a static/singleton manager class, or at least a global variable.

 

Hi, If I have multiple (lets say 20) non consumables, so I would have to create PlayerPrefs for each of them? Is there anyother way? like to create a file

 

Actually any non-consumables or subscription purchase would be in the Product controller list with the receipt data. Only consumables would not be present.

 

Ok, it impossible to track back history of purchased without save if by yourself by PlayerPrefeb or other local save system, Right?