From 0be0f61de93a8184910029895fb81089bd0dccea Mon Sep 17 00:00:00 2001
From: Andrew Beaven <andrew@simplydating.com>
Date: Wed, 6 Mar 2024 16:00:13 +1300
Subject: [PATCH] Add a method and associated response models to hit the Get
 Transaction Info endpoint referenced here:
 https://developer.apple.com/documentation/appstoreserverapi/get_transaction_info

---
 AppStoreServerApi/AppleAppstoreClient.cs            |  6 ++++++
 AppStoreServerApi/Models/TransactionInfoResponse.cs | 11 +++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 AppStoreServerApi/Models/TransactionInfoResponse.cs

diff --git a/AppStoreServerApi/AppleAppstoreClient.cs b/AppStoreServerApi/AppleAppstoreClient.cs
index 28c4ff5..fa13fbd 100644
--- a/AppStoreServerApi/AppleAppstoreClient.cs
+++ b/AppStoreServerApi/AppleAppstoreClient.cs
@@ -80,6 +80,12 @@ private bool TokenExpired
 
             return await this.MakeRequest<HistoryResponse>($"{this.BaseUrl}/inApps/v1/history/{originalTransactionId}{query}");
         }
+        
+        // https://developer.apple.com/documentation/appstoreserverapi/get_transaction_info
+        public async Task<TransactionInfoResponse?> GetTransactionInfo(string transactionId)
+        {
+            return await this.MakeRequest<TransactionInfoResponse>($"{this.BaseUrl}/inApps/v1/transactions/{transactionId}");
+        }
 
         // https://developer.apple.com/documentation/appstoreserverapi/get_all_subscription_statuses
         public async Task<StatusResponse?> GetSubscriptionStatuses(string originalTransactionId)
diff --git a/AppStoreServerApi/Models/TransactionInfoResponse.cs b/AppStoreServerApi/Models/TransactionInfoResponse.cs
new file mode 100644
index 0000000..f375cf2
--- /dev/null
+++ b/AppStoreServerApi/Models/TransactionInfoResponse.cs
@@ -0,0 +1,11 @@
+namespace AppStoreServerApi.Models
+{
+    // https://developer.apple.com/documentation/appstoreserverapi/transactioninforesponse
+    public class TransactionInfoResponse
+    {
+        /// <summary>
+        /// JWSTransaction
+        /// </summary>
+        public string SignedTransactionInfo { get; set; } = null!;
+    }
+}
\ No newline at end of file