How to securely deliver data on the status of a payment made in apple pay from a client to a server?

Question

1C-Bitrix

Hey guys, has anyone made an apple pay payment?
In particular, I am interested in the method of obtaining information about the payment on the server.

Surprisingly, I did not find the opportunity to set entrypoints on the server,
to which the Google service goes, depending on the status of the payment made on the client device.

A la:

/ success
/ error
/ check (such as where hashes are somehow checked and the honesty of the payment is verified)

I watched the office. connection dock. But I did not find a way to receive payment data through the API.

MB, for example, you can transfer some identifier of a successful payment from the client to the server, or something else in addition upon completion of the payment.
And from the server to throw a request somewhere in the Google API and read its status?

For example, by analogy, google pay has a section that covers the task.
https://developers.google.com/android-publisher/ap...

Answer 1

Do you need Apple Pay or Google Pay? For some reason, everything is mixed up in the question.
We implemented Apple Pay payments according to the following scheme:
1. Payment is completely made on the side of the application. Backend is not involved in any way.
2. Then the application informs the backend about the successful purchase by sending a receipt (receipt)
3. The backend checks the received receipt using the verifyReceipt API and then credits the purchase and takes the necessary actions.
It is important to remember that a receipt can contain several transactions, incl. those that have been processed previously. You need to store the IDs of processed transactions somewhere in the database and process only new ones.