Does this API only support payments from the buyer to the seller and nothing more? It appears that this in-app purchase API does not support software processing of refunds and cancellations. I like the built-in experience, but I need a slightly more robust API to work with.
Looking at the Google Checkout API, it’s clear that this allows you to program a refund programmatically. However, it also appears that the trade identifier (mainly the API key) cannot be used between Google Wallet for digital goods and Google Wallet for verification.
Can Google Wallet for Digital Goods support software refunds, and if not, can you use Digital Goods' built-in payment experience using the Checkout API?
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