I've got all the initial code working that handles the purchase for the user through Google Wallet and submits the actual charge to their credit card. Also in the setup I specified a post-back url for this where I capture the order details like the order number, price, item name, etc and I save them to my database.
But when I look in Google Wallet under 'orders' I see the order flagged in yellow with the description 'chargeable' (after awhile it will turn to green and be marked 'charged') so clearly there needs to be some checking to make sure the charge was made successfully before I treat it as such. The Google documentation says that I need to receive a charge-amount-notification back from them to confirm that the charge was successful. But I see no good examples for this or instructions on how to implement it. Do I need to poll their API for a success code or something? I really just need a good example in C# so I can see how this all ties together and how best to proceed.
thanks!