In-App Purchase Verification using Azure Functions

How to use: Verifying In-App Purchases using Azure Functions

Endpoints

~/api/v1/Apple

Uses the verifyreceipt API to validate IAPs with Apple (Deprecated).

~/api/v2/Apple

Uses the App Store Server API to validate IAPs with Apple.

~/api/v1/Google

Uses the Google Android Publisher API to validate IAPs with Google.

App Settings

Setting	Type/Format	Description
GraceDays	INT	Number of days to allow an expired/cancelled IAP to remain valid
Google:Account	STRING	Google Service Account User
Google:KeyBase64	B64_STRING	Base64 encoded P8 key for service account
AppleSecret:Master	STRING	Master secret for verifyReceipt endpoint, fall back when no app specific secret found
AppleSecret:AppSpecific	{BUNDLE_ID}:{SECRET},...	App specific secrets for verifyReceipt endpoint Comma separated dictionary, key (BundleId) and value (secret) separated by a Colon
AppleStore:IssuerId	GUID	JWT Issuer ID for StoreKit Server API
AppleStore:KeyId	STRING	JWT Key ID for StoreKit Server API
AppleStore:PrivateKeyBase64	B64_STRING	Base64 encoded P8 key for signing JWT for StoreKit API

Resources

• InAppBillingPlugin
• Securing In-App Purchases for Xamarin with Azure Functions
• Securing Google Play In-App Purchases for Xamarin with Azure Functions