Checks the purchase and consumption status of an inapp item.
The URL uses gRPC Transcoding syntax.
The package name of the application the inapp product was sold in (for example, 'com.some.thing').
The inapp product SKU (for example, 'com.some.thing.inapp1').
The token provided to the user's device when the inapp product was purchased.
The request body must be empty.
If successful, the response body contains an instance of
Requires the following OAuth scope: