From 9a0e9c6e3e1e849e59450548144eaf492b5a0a0d Mon Sep 17 00:00:00 2001
From: Wei Zang <richzw@gmail.com>
Date: Sat, 1 Jul 2023 09:59:18 +0800
Subject: [PATCH 1/2] docs(readme): add GetTransactionInfo sample

---
 README.md | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/README.md b/README.md
index 88f0416..5d300c2 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,38 @@ import(
 	"github.com/awa/go-iap/appstore/api"
 )
 
+//  For generate key file and download it, please refer to https://developer.apple.com/documentation/appstoreserverapi/creating_api_keys_to_use_with_the_app_store_server_api
+const ACCOUNTPRIVATEKEY = `
+    -----BEGIN PRIVATE KEY-----
+    FAKEACCOUNTKEYBASE64FORMAT
+    -----END PRIVATE KEY-----
+    `
+func main() {
+	c := &api.StoreConfig{
+		KeyContent: []byte(ACCOUNTPRIVATEKEY),  // Loads a .p8 certificate
+		KeyID:      "FAKEKEYID",                // Your private key ID from App Store Connect (Ex: 2X9R4HXF34)
+		BundleID:   "fake.bundle.id",           // Your app’s bundle ID
+		Issuer:     "xxxxx-xx-xx-xx-xxxxxxxxxx",// Your issuer ID from the Keys page in App Store Connect (Ex: "57246542-96fe-1a63-e053-0824d011072a")
+		Sandbox:    false,                      // default is Production
+	}
+	transactionId := "FAKETRANSACTIONID"
+	a := api.NewStoreClient(c)
+	ctx := context.Background()
+	response, err := a.GetTransactionInfo(ctx, transactionId)
+
+	transantion, err := a.ParseSignedTransaction(response.SignedTransactionInfo)
+
+	if transaction.TransactionId == transactionId {
+		// the transaction is valid
+	}
+}
+```
+
+```go
+import(
+	"github.com/awa/go-iap/appstore/api"
+)
+
 //  For generate key file and download it, please refer to https://developer.apple.com/documentation/appstoreserverapi/creating_api_keys_to_use_with_the_app_store_server_api
 const ACCOUNTPRIVATEKEY = `
     -----BEGIN PRIVATE KEY-----

From 17b86f2218f02d6c6b06cc6c7f6718dbe7af0361 Mon Sep 17 00:00:00 2001
From: Wei Zang <richzw@gmail.com>
Date: Sat, 1 Jul 2023 10:06:01 +0800
Subject: [PATCH 2/2] docs(readme): update app store server api to readme

---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index 5d300c2..7ab748c 100644
--- a/README.md
+++ b/README.md
@@ -101,6 +101,8 @@ func main() {
 
 ### In App Store Server API
 
+- GetTransactionInfo
+
 ```go
 import(
 	"github.com/awa/go-iap/appstore/api"
@@ -133,6 +135,8 @@ func main() {
 }
 ```
 
+- GetTransactionHistory
+
 ```go
 import(
 	"github.com/awa/go-iap/appstore/api"