Merge pull request #6 from kt81/feat/transaction-info

Add TransactionInfo API

Author: flagbug

README.md

@@ -23,7 +23,7 @@ This is a list of the features that are currently implemented in the library, co
 | Get Transaction History v2                                  |  ✅   |      ✅      |
 | Extract Transaction Id from receipt                         |  ✅   |      ✅      |
 | Get Transaction History v1                                  |  ✅   |              |
-| Get Transaction Info                                        |  ✅   |              |
+| Get Transaction Info                                        |  ✅   |      ✅      |
 | Send Consumption Information                                |  ✅   |      ✅      |
 | Look Up Order ID                                            |  ✅   |              |
 | Get Refund History                                          |  ✅   |              |
@@ -65,7 +65,7 @@ try {
 
 ```
 
-> [!IMPORTANT]  
+> [!IMPORTANT]
 > The `SignedDataVerifier` will not verify the payload if the `environment` parameter is `LocalTesting`. This was done to allow testing fake payloads locally without the need to verify them.
 
 ### API

src/AppStoreServerApiClient.cs

@@ -106,6 +106,14 @@ public Task SendConsumptionData(string transactionId, ConsumptionRequest consump
         return this.MakeRequest<object?>(path, HttpMethod.Put, null, consumptionRequest, false);
     }
 
+    public Task<TransactionInfoResponse?> GetTransactionInfo(string transactionId)
+    {
+        //Call to https://developer.apple.com/documentation/appstoreserverapi/get-v1-transactions-_transactionid_
+        string path = $"/inApps/v1/transactions/{transactionId}";
+
+        return this.MakeRequest<TransactionInfoResponse>(path, HttpMethod.Get);
+    }
+
     private static string CreateBearerToken(string keyId, string issuerId, string signingKey, string bundleId)
     {
         var prvKey = ECDsa.Create();

src/Models/AppStoreDataTypes.cs

@@ -603,6 +603,14 @@ public class TransactionHistoryResponse
     public List<string> SignedTransactions { get; set; } = null!;
 }
 
+/// <summary>
+/// A response that contains the customer’s transaction information for an app.
+/// </summary>
+public class TransactionInfoResponse
+{
+    public string SignedTransactionInfo { get; set; } = null!;
+}
+
 /// <summary>
 /// Error response from the App Store Server API.
 /// </summary>

tests/AppStoreServerApiClientTest.cs

@@ -136,4 +136,19 @@ await client.SendConsumptionData(
             }
         );
     }
+
+    [Fact]
+    public async Task GetTransactionInfo_Success()
+    {
+        var mockHttp = new MockHttpMessageHandler();
+        mockHttp
+            .When($"https://local-testing-base-url/inApps/v1/transactions/1234")
+            .Respond("application/json", "{\"signedTransactionInfo\":\"signed_transaction_info_value\"}");
+
+        AppStoreServerApiClient client = GetAppStoreServerApiClient(mockHttp);
+
+        TransactionInfoResponse? response = await client.GetTransactionInfo("1234");
+        Assert.NotNull(response);
+        Assert.Equal("signed_transaction_info_value", response.SignedTransactionInfo);
+    }
 }

tests/SignedDataVerifierTest.cs

@@ -232,7 +232,7 @@ public async Task VerifyAndDecode_TransactionInfo_Success()
             BundleId
         );
 
-        JWSRenewalInfoDecodedPayload result = await dataVerifier.VerifyAndDecodeRenewalInfo(
+        JwsTransactionDecodedPayload result = await dataVerifier.VerifyAndDecodeTransaction(
             didRenewNotificationPayload
         );