Is there any real example of app store signed transaction or signed notification? I can find decoded form for transaction info or notification payload but not real signed example. There are some decoded examples - https://qonversion.io/blog/apples-2021-updates-to-managing-in-app-purchases-from-the-server but I want some real token with header alg and x5c. I would like test my backend implementation during development. My goal is receive App Store Server Notifications v2 and update my data.
Apple storekit v2 real signed transaction info and real signed notification
To receive a sample test sever notification, you can accomplish this for v1 and v2 server notifications when using sandbox and TestFlight and adding your server url in App Store Connect. https://developer.apple.com/documentation/storekit/in-app_purchase/testing_in-app_purchases_with_sandbox