Removed old Amazon SDK version

Brought stores to a common view,  Amazon iap_lib update

.github/workflows/bob.yml

@@ -0,0 +1,76 @@
+name: Build with bob
+
+on:
+  push:
+  pull_request_target:
+  schedule:
+    # nightly at 05:00 on the 1st and 15th
+    - cron: 0 5 1,15 * *
+
+env:
+  VERSION_FILENAME: 'info.json'
+  BUILD_SERVER: 'https://build.defold.com'
+
+jobs:
+  build_with_bob:
+    strategy:
+      matrix:
+        platform: [armv7-android, x86_64-linux, x86_64-win32, x86-win32, js-web]
+    runs-on: ubuntu-latest
+
+    name: Build
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: '11.0.2'
+
+      - name: Get Defold version
+        run: |
+          TMPVAR=`curl -s http://d.defold.com/stable/${{env.VERSION_FILENAME}} | jq -r '.sha1'`
+          echo "DEFOLD_VERSION=${TMPVAR}" >> $GITHUB_ENV
+          echo "Found version ${TMPVAR}"
+
+      - name: Download bob.jar
+        run: |
+          wget -q http://d.defold.com/archive/stable/${{env.DEFOLD_VERSION}}/bob/bob.jar
+          java -jar bob.jar --version
+
+      - name: Resolve libraries
+        run: java -jar bob.jar resolve --email a@b.com --auth 123456
+      - name: Build
+        run: java -jar bob.jar --platform=${{ matrix.platform }} build --archive --build-server=${{env.BUILD_SERVER}}
+      - name: Bundle
+        run: java -jar bob.jar --platform=${{ matrix.platform }} bundle
+
+  # macOS is not technically needed for building, but we want to test bundling as well, since we're also testing the manifest merging
+  build_with_bob_macos:
+    strategy:
+      matrix:
+        platform: [armv7-darwin, x86_64-darwin]
+    runs-on: macOS-latest
+
+    name: Build
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-java@v1
+        with:
+          java-version: '11.0.2'
+
+      - name: Get Defold version
+        run: |
+          TMPVAR=`curl -s http://d.defold.com/stable/${{env.VERSION_FILENAME}} | jq -r '.sha1'`
+          echo "DEFOLD_VERSION=${TMPVAR}" >> $GITHUB_ENV
+          echo "Found version ${TMPVAR}"
+
+      - name: Download bob.jar
+        run: |
+          wget -q http://d.defold.com/archive/stable/${{env.DEFOLD_VERSION}}/bob/bob.jar
+          java -jar bob.jar --version
+
+      - name: Resolve libraries
+        run: java -jar bob.jar resolve --email a@b.com --auth 123456
+      - name: Build
+        run: java -jar bob.jar --platform=${{ matrix.platform }} build --archive --build-server=${{env.BUILD_SERVER}}
+      - name: Bundle
+        run: java -jar bob.jar --platform=${{ matrix.platform }} bundle

README.md

@@ -1,3 +1,5 @@
+[![Actions Status Alpha](https://github.com/defold/extension-iap/actions/workflows/bob.yml/badge.svg)](https://github.com/defold/extension-iap/actions)
+
 # In-app purchase extension for Defold
 
 Defold [native extension](https://www.defold.com/manuals/extensions/) which provides access to In-app purchase functionality on iOS, Android (Google Play and Amazon) and Facebook Canvas platforms.

docs/index.md

@@ -173,17 +173,20 @@ Most payment providers only supports synchronous payments. This means that the c
 ## Asynchronous payments
 
 Some payment providers require supporting asynchronous payments. This means that the client (your application) will only receive a notification when the payment is initiated. In order to verify completion of payment, further communication needs to be done between the developer server (or client) and the payment provider in order to verify.
+
 In the case of an initiated asynchronous payment the IAP listener will receive the state TRANS_STATE_UNVERIFIED to indicate this (as opposed to TRANS_STATE_PURCHASED). This is the final state of the payment, meaning no more callbacks will be done on this transaction.
 
 
 ## Purchase fulfilment
 
 In order to complete a purchase from a payment provider, the application needs to signal a purchase fulfilment to the provider telling the provider the purchase has gone through (for example by developer server-side verification).
+
 IAP supports auto-completion, where fulfilment is automatically signalled to the provider when a purchase is complete (this is the default behavior). You can also disable auto-completion in the game project settings. You are then required to call `iap.finish()` when the transaction is complete, which will signal purchase fulfilment to the provider.
 
 
 ### Consumable vs non-consumable products
-The Google Play store does only support consumable products. If you need non-consumable products it is recommended to use manual fulfillment of purchases and never finish purchases for products that should be non-consumable. As long as a purchase isn't finished it will be returned as an active purchase when `iap.set_listener()` is called.
+
+The Google Play store does only support consumable products. If you need non-consumable products it is recommended to use manual fulfilment of purchases and never finish purchases for products that should be non-consumable. As long as a purchase isn't finished it will be returned as an active purchase when `iap.set_listener()` is called. If you do not call `iap.finish()` on a purchase you still need to indicate to Google Play that the purchase has been handled. You can do this by calling `iap.acknowledge()`. If you do not call `iap.acknowledge()` the purchase will be automatically refunded by Google after a few days.
 
 The Apple App Store supports non-consumable products which means that you need to finish all purchases when you provide products to your users. You can do it automatically by keeping the default behavior in the game project settings or manually (if you want to do that after server validation, for example) using `iap.finish()`.
 
@@ -212,7 +215,7 @@ Android `iap.list()` returns "failed to fetch product"
 : You need to upload and publish an *.apk* on the alpha or beta channels on the Google Play Developer Console. Also make sure that the _time and date_ on your device is correct.
 
 Android (Google Play) `iap.list()` never returns more than 20 products
-: Google has an [limit of 20 products per request](https://github.com/android/play-billing-samples/blob/7a94c6905a9c125518354c216b5c3094fde47ce1/TrivialDrive/app/src/main/aidl/com/android/vending/billing/IInAppBillingService.aidl#L62). The solution is to make multiple calls to `iap.list()` and combine the results if the number of products exceeds 20.
+: Google has a [limit of 20 products per request](https://github.com/android/play-billing-samples/blob/7a94c6905a9c125518354c216b5c3094fde47ce1/TrivialDrive/app/src/main/aidl/com/android/vending/billing/IInAppBillingService.aidl#L62). The solution is to make multiple calls to `iap.list()` and combine the results if the number of products exceeds 20.
 
 iOS `iap.list()` returns nothing
 : Make sure that you’ve requested an iOS Paid Applications account, and all proper documentation has been filed. Without proper authorization, your iOS app purchasing (even test purchases) will not work.

extension-iap/api/iap.script_api

@@ -9,7 +9,7 @@
 
   - name: buy
     type: function
-    desc: Sets the listener function for In-app purchase events.
+    desc: Purchase a product.
     parameters:
       - name: id
         type: string

extension-iap/lib/web/library_facebook_iap.js

@@ -72,7 +72,7 @@ var LibraryFacebookIAP = {
                     if(url_index == product_count-1) {
                         var productsJSON = JSON.stringify(products);
                         var res_buf = allocate(intArrayFromString(productsJSON), 'i8', ALLOC_STACK);
-                        Runtime.dynCall('vii', callback, [lua_callback, res_buf]);
+                        {{{ makeDynCall('vii', 'callback')}}}(lua_callback, res_buf);
                     } else {
                         var xmlhttp = new XMLHttpRequest();
                         xmlhttp.onreadystatechange = function() {
@@ -87,7 +87,7 @@ var LibraryFacebookIAP = {
         },
 
         dmIAPFBList: function(params, callback, lua_callback) {
-            var product_ids = Pointer_stringify(params).trim().split(',');
+            var product_ids = UTF8ToString(params).trim().split(',');
             var product_count = product_ids.length;
             if(product_count == 0) {
                 console.log("Calling iap.list with no item id's. Ignored.");
@@ -105,7 +105,7 @@ var LibraryFacebookIAP = {
 
         // https://developers.facebook.com/docs/javascript/reference/FB.ui
         dmIAPFBBuy: function(param_product_id, param_request_id, callback, lua_callback) {
-            var product_id = Pointer_stringify(param_product_id);
+            var product_id = UTF8ToString(param_product_id);
 
             var buy_params = {
                     method: 'pay',
@@ -113,7 +113,7 @@ var LibraryFacebookIAP = {
                     product: product_id,
             };
             if(param_request_id != 0) {
-                buy_params.request_id = Pointer_stringify(param_request_id);
+                buy_params.request_id = UTF8ToString(param_request_id);
             }
 
             FB.ui(buy_params,
@@ -144,7 +144,7 @@ var LibraryFacebookIAP = {
 
 	                    var productsJSON = JSON.stringify(result)
 	                    var res_buf = allocate(intArrayFromString(productsJSON), 'i8', ALLOC_STACK);
-	                    Runtime.dynCall('viii', callback, [lua_callback, res_buf, 0]);
+	                    {{{ makeDynCall('viii', 'callback')}}}(lua_callback, res_buf, 0);
 
 	                } else {
 
@@ -157,7 +157,7 @@ var LibraryFacebookIAP = {
 	                        reason = FBinner.BillingResponse.BILLING_RESPONSE_RESULT_ERROR;
 	                        console.log("Unknown response: ", response);
 	                    }
-	                    Runtime.dynCall('viii', callback, [lua_callback, 0, reason]);
+	                    {{{ makeDynCall('viii', 'callback')}}}(lua_callback, 0, reason);
 	                }
             	}
             );

extension-iap/manifests/android/AndroidManifest.xml

@@ -4,9 +4,9 @@
 <uses-sdk android:minSdkVersion="{{android.minimum_sdk_version}}" android:targetSdkVersion="{{android.target_sdk_version}}" />
     <application>
         <!-- For Amazon IAP -->
-        <receiver android:name="com.amazon.device.iap.ResponseReceiver" >
+        <receiver android:name = "com.amazon.device.iap.ResponseReceiver" android:permission = "com.amazon.inapp.purchasing.Permission.NOTIFY" >
             <intent-filter>
-                <action android:name="com.amazon.inapp.purchasing.NOTIFY" android:permission="com.amazon.inapp.purchasing.Permission.NOTIFY" />
+                <action android:name = "com.amazon.inapp.purchasing.NOTIFY" />
             </intent-filter>
         </receiver>
     </application>

extension-iap/src/iap_android.cpp

@@ -30,7 +30,6 @@ struct IAP
         m_autoFinishTransactions = true;
         m_ProviderId = PROVIDER_ID_GOOGLE;
     }
-    int             m_InitCount;
     bool            m_autoFinishTransactions;
     int             m_ProviderId;
 
@@ -399,59 +398,54 @@ static void HandlePurchaseResult(const IAPCommand* cmd)
 
 static dmExtension::Result InitializeIAP(dmExtension::Params* params)
 {
-    // TODO: Life-cycle managaemnt is *budget*. No notion of "static initalization"
-    // Extend extension functionality with per system initalization?
-    if (g_IAP.m_InitCount == 0) {
-        IAP_Queue_Create(&g_IAP.m_CommandQueue);
+    IAP_Queue_Create(&g_IAP.m_CommandQueue);
 
-        g_IAP.m_autoFinishTransactions = dmConfigFile::GetInt(params->m_ConfigFile, "iap.auto_finish_transactions", 1) == 1;
+    g_IAP.m_autoFinishTransactions = dmConfigFile::GetInt(params->m_ConfigFile, "iap.auto_finish_transactions", 1) == 1;
 
-        JNIEnv* env = Attach();
+    JNIEnv* env = Attach();
 
-        jclass activity_class = env->FindClass("android/app/NativeActivity");
-        jmethodID get_class_loader = env->GetMethodID(activity_class,"getClassLoader", "()Ljava/lang/ClassLoader;");
-        jobject cls = env->CallObjectMethod(dmGraphics::GetNativeAndroidActivity(), get_class_loader);
-        jclass class_loader = env->FindClass("java/lang/ClassLoader");
-        jmethodID find_class = env->GetMethodID(class_loader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
+    jclass activity_class = env->FindClass("android/app/NativeActivity");
+    jmethodID get_class_loader = env->GetMethodID(activity_class,"getClassLoader", "()Ljava/lang/ClassLoader;");
+    jobject cls = env->CallObjectMethod(dmGraphics::GetNativeAndroidActivity(), get_class_loader);
+    jclass class_loader = env->FindClass("java/lang/ClassLoader");
+    jmethodID find_class = env->GetMethodID(class_loader, "loadClass", "(Ljava/lang/String;)Ljava/lang/Class;");
 
-        const char* provider = dmConfigFile::GetString(params->m_ConfigFile, "android.iap_provider", "GooglePlay");
-        const char* class_name = "com.defold.iap.IapGooglePlay";
+    const char* provider = dmConfigFile::GetString(params->m_ConfigFile, "android.iap_provider", "GooglePlay");
+    const char* class_name = "com.defold.iap.IapGooglePlay";
 
-        g_IAP.m_ProviderId = PROVIDER_ID_GOOGLE;
-        if (!strcmp(provider, "Amazon")) {
-            g_IAP.m_ProviderId = PROVIDER_ID_AMAZON;
-            class_name = "com.defold.iap.IapAmazon";
-        }
-        else if (strcmp(provider, "GooglePlay")) {
-            dmLogWarning("Unknown IAP provider name [%s], defaulting to GooglePlay", provider);
-        }
-
-        jstring str_class_name = env->NewStringUTF(class_name);
-
-        jclass iap_class = (jclass)env->CallObjectMethod(cls, find_class, str_class_name);
-        env->DeleteLocalRef(str_class_name);
-
-        str_class_name = env->NewStringUTF("com.defold.iap.IapJNI");
-        jclass iap_jni_class = (jclass)env->CallObjectMethod(cls, find_class, str_class_name);
-        env->DeleteLocalRef(str_class_name);
-
-        g_IAP.m_List = env->GetMethodID(iap_class, "listItems", "(Ljava/lang/String;Lcom/defold/iap/IListProductsListener;J)V");
-        g_IAP.m_Buy = env->GetMethodID(iap_class, "buy", "(Ljava/lang/String;Lcom/defold/iap/IPurchaseListener;)V");
-        g_IAP.m_Restore = env->GetMethodID(iap_class, "restore", "(Lcom/defold/iap/IPurchaseListener;)V");
-        g_IAP.m_Stop = env->GetMethodID(iap_class, "stop", "()V");
-        g_IAP.m_ProcessPendingConsumables = env->GetMethodID(iap_class, "processPendingConsumables", "(Lcom/defold/iap/IPurchaseListener;)V");
-        g_IAP.m_FinishTransaction = env->GetMethodID(iap_class, "finishTransaction", "(Ljava/lang/String;Lcom/defold/iap/IPurchaseListener;)V");
-        g_IAP.m_AcknowledgeTransaction = env->GetMethodID(iap_class, "acknowledgeTransaction", "(Ljava/lang/String;Lcom/defold/iap/IPurchaseListener;)V");
-
-        jmethodID jni_constructor = env->GetMethodID(iap_class, "<init>", "(Landroid/app/Activity;Z)V");
-        g_IAP.m_IAP = env->NewGlobalRef(env->NewObject(iap_class, jni_constructor, dmGraphics::GetNativeAndroidActivity(), g_IAP.m_autoFinishTransactions));
-
-        jni_constructor = env->GetMethodID(iap_jni_class, "<init>", "()V");
-        g_IAP.m_IAPJNI = env->NewGlobalRef(env->NewObject(iap_jni_class, jni_constructor));
-
-        Detach();
+    g_IAP.m_ProviderId = PROVIDER_ID_GOOGLE;
+    if (!strcmp(provider, "Amazon")) {
+        g_IAP.m_ProviderId = PROVIDER_ID_AMAZON;
+        class_name = "com.defold.iap.IapAmazon";
     }
-    g_IAP.m_InitCount++;
+    else if (strcmp(provider, "GooglePlay")) {
+        dmLogWarning("Unknown IAP provider name [%s], defaulting to GooglePlay", provider);
+    }
+
+    jstring str_class_name = env->NewStringUTF(class_name);
+
+    jclass iap_class = (jclass)env->CallObjectMethod(cls, find_class, str_class_name);
+    env->DeleteLocalRef(str_class_name);
+
+    str_class_name = env->NewStringUTF("com.defold.iap.IapJNI");
+    jclass iap_jni_class = (jclass)env->CallObjectMethod(cls, find_class, str_class_name);
+    env->DeleteLocalRef(str_class_name);
+
+    g_IAP.m_List = env->GetMethodID(iap_class, "listItems", "(Ljava/lang/String;Lcom/defold/iap/IListProductsListener;J)V");
+    g_IAP.m_Buy = env->GetMethodID(iap_class, "buy", "(Ljava/lang/String;Lcom/defold/iap/IPurchaseListener;)V");
+    g_IAP.m_Restore = env->GetMethodID(iap_class, "restore", "(Lcom/defold/iap/IPurchaseListener;)V");
+    g_IAP.m_Stop = env->GetMethodID(iap_class, "stop", "()V");
+    g_IAP.m_ProcessPendingConsumables = env->GetMethodID(iap_class, "processPendingConsumables", "(Lcom/defold/iap/IPurchaseListener;)V");
+    g_IAP.m_FinishTransaction = env->GetMethodID(iap_class, "finishTransaction", "(Ljava/lang/String;Lcom/defold/iap/IPurchaseListener;)V");
+    g_IAP.m_AcknowledgeTransaction = env->GetMethodID(iap_class, "acknowledgeTransaction", "(Ljava/lang/String;Lcom/defold/iap/IPurchaseListener;)V");
+
+    jmethodID jni_constructor = env->GetMethodID(iap_class, "<init>", "(Landroid/app/Activity;Z)V");
+    g_IAP.m_IAP = env->NewGlobalRef(env->NewObject(iap_class, jni_constructor, dmGraphics::GetNativeAndroidActivity(), g_IAP.m_autoFinishTransactions));
+
+    jni_constructor = env->GetMethodID(iap_jni_class, "<init>", "()V");
+    g_IAP.m_IAPJNI = env->NewGlobalRef(env->NewObject(iap_jni_class, jni_constructor));
+
+    Detach();
 
     lua_State*L = params->m_L;
     int top = lua_gettop(L);
@@ -494,21 +488,18 @@ static dmExtension::Result UpdateIAP(dmExtension::Params* params)
 static dmExtension::Result FinalizeIAP(dmExtension::Params* params)
 {
     IAP_Queue_Destroy(&g_IAP.m_CommandQueue);
-    --g_IAP.m_InitCount;
 
     if (params->m_L == dmScript::GetCallbackLuaContext(g_IAP.m_Listener)) {
         dmScript::DestroyCallback(g_IAP.m_Listener);
         g_IAP.m_Listener = 0;
     }
 
-    if (g_IAP.m_InitCount == 0) {
-        JNIEnv* env = Attach();
-        env->CallVoidMethod(g_IAP.m_IAP, g_IAP.m_Stop);
-        env->DeleteGlobalRef(g_IAP.m_IAP);
-        env->DeleteGlobalRef(g_IAP.m_IAPJNI);
-        Detach();
-        g_IAP.m_IAP = NULL;
-    }
+    JNIEnv* env = Attach();
+    env->CallVoidMethod(g_IAP.m_IAP, g_IAP.m_Stop);
+    env->DeleteGlobalRef(g_IAP.m_IAP);
+    env->DeleteGlobalRef(g_IAP.m_IAPJNI);
+    Detach();
+    g_IAP.m_IAP = NULL;
     return dmExtension::RESULT_OK;
 }
 

extension-iap/src/iap_ios.mm

@@ -24,7 +24,7 @@ struct IAP
         memset(this, 0, sizeof(*this));
         m_AutoFinishTransactions = true;
     }
-    int                             m_InitCount;
+    int                             m_Version;
     bool                            m_AutoFinishTransactions;
     NSMutableDictionary*            m_PendingTransactions;
     dmScript::LuaCallbackInfo*      m_Listener;
@@ -103,11 +103,17 @@ static void IAP_FreeTransaction(IAPTransaction* transaction)
 @interface SKProductsRequestDelegate : NSObject<SKProductsRequestDelegate>
     @property dmScript::LuaCallbackInfo* m_Callback;
     @property (assign) SKProductsRequest* m_Request;
+    @property int m_Version;
 @end
 
 @implementation SKProductsRequestDelegate
 - (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{
 
+    if (self.m_Version != g_IAP.m_Version) {
+        dmLogWarning("Received products but the extension has been restarted")
+        return;
+    }
+
     if (!dmScript::IsCallbackValid(self.m_Callback)) {
         dmLogError("No callback set");
         return;
@@ -162,7 +168,7 @@ static void HandleProductResult(IAPCommand* cmd)
 
     IAPResponse* response = (IAPResponse*)cmd->m_Data;
 
-    lua_State* L = dmScript::GetCallbackLuaContext(g_IAP.m_Listener);
+    lua_State* L = dmScript::GetCallbackLuaContext(cmd->m_Callback);
     int top = lua_gettop(L);
 
     if (!dmScript::SetupCallback(cmd->m_Callback))
@@ -409,6 +415,7 @@ static int IAP_List(lua_State* L)
 
     delegate.m_Callback = dmScript::CreateCallback(L, 2);
     delegate.m_Request = products_request;
+    delegate.m_Version = g_IAP.m_Version;
     products_request.delegate = delegate;
     [products_request start];
 
@@ -529,13 +536,9 @@ static const luaL_reg IAP_methods[] =
 
 static dmExtension::Result InitializeIAP(dmExtension::Params* params)
 {
-    // TODO: Life-cycle managaemnt is *budget*. No notion of "static initalization"
-    // Extend extension functionality with per system initalization?
-    if (g_IAP.m_InitCount == 0) {
-        g_IAP.m_AutoFinishTransactions = dmConfigFile::GetInt(params->m_ConfigFile, "iap.auto_finish_transactions", 1) == 1;
-        g_IAP.m_PendingTransactions = [[NSMutableDictionary alloc]initWithCapacity:2];
-    }
-    g_IAP.m_InitCount++;
+    g_IAP.m_AutoFinishTransactions = dmConfigFile::GetInt(params->m_ConfigFile, "iap.auto_finish_transactions", 1) == 1;
+    g_IAP.m_PendingTransactions = [[NSMutableDictionary alloc]initWithCapacity:2];
+    g_IAP.m_Version++;
 
     IAP_Queue_Create(&g_IAP.m_CommandQueue);
     IAP_Queue_Create(&g_IAP.m_ObservableQueue);
@@ -590,26 +593,18 @@ static dmExtension::Result UpdateIAP(dmExtension::Params* params)
 
 static dmExtension::Result FinalizeIAP(dmExtension::Params* params)
 {
-    --g_IAP.m_InitCount;
+    dmScript::DestroyCallback(g_IAP.m_Listener);
+    g_IAP.m_Listener = 0;
 
-    // TODO: Should we support one listener per lua-state?
-    // Or just use a single lua-state...?
-    if (params->m_L == dmScript::GetCallbackLuaContext(g_IAP.m_Listener)) {
-        dmScript::DestroyCallback(g_IAP.m_Listener);
-        g_IAP.m_Listener = 0;
+    if (g_IAP.m_PendingTransactions) {
+         [g_IAP.m_PendingTransactions release];
+         g_IAP.m_PendingTransactions = 0;
     }
 
-    if (g_IAP.m_InitCount == 0) {
-        if (g_IAP.m_PendingTransactions) {
-             [g_IAP.m_PendingTransactions release];
-             g_IAP.m_PendingTransactions = 0;
-        }
-
-        if (g_IAP.m_Observer) {
-            [[SKPaymentQueue defaultQueue] removeTransactionObserver: g_IAP.m_Observer];
-            [g_IAP.m_Observer release];
-            g_IAP.m_Observer = 0;
-        }
+    if (g_IAP.m_Observer) {
+        [[SKPaymentQueue defaultQueue] removeTransactionObserver: g_IAP.m_Observer];
+        [g_IAP.m_Observer release];
+        g_IAP.m_Observer = 0;
     }
 
     IAP_Queue_Destroy(&g_IAP.m_CommandQueue);

extension-iap/src/java/com/defold/iap/IapAmazon.java

@@ -11,6 +11,7 @@ import java.util.concurrent.BlockingQueue;
 
 import org.json.JSONException;
 import org.json.JSONObject;
+import org.json.JSONArray;
 
 import android.app.Activity;
 import android.os.Bundle;
@@ -45,6 +46,7 @@ public class IapAmazon implements PurchasingListener {
         this.activity = activity;
         this.autoFinishTransactions = autoFinishTransactions;
         this.listProductsListeners = new HashMap<RequestId, IListProductsListener>();
+        this.listProductsCommandPtrs = new HashMap<RequestId, Long>();
         this.purchaseListeners = new HashMap<RequestId, IPurchaseListener>();
         PurchasingService.registerListener(activity, this);
     }
@@ -96,6 +98,10 @@ public class IapAmazon implements PurchasingListener {
         }
         PurchasingService.notifyFulfillment(receipt, FulfillmentResult.FULFILLED);
     }
+    
+    public void acknowledgeTransaction(final String purchaseToken, final IPurchaseListener purchaseListener) {
+        // Stub to prevent errors.
+    }
 
     private void doGetPurchaseUpdates(final IPurchaseListener listener, final boolean reset) {
         synchronized (purchaseListeners) {
@@ -168,9 +174,13 @@ public class IapAmazon implements PurchasingListener {
         if (productDataResponse.getRequestStatus() != ProductDataResponse.RequestStatus.SUCCESSFUL) {
             listener.onProductsResult(IapJNI.BILLING_RESPONSE_RESULT_ERROR, null, commadPtr);
         } else {
+            for (final String s : productDataResponse.getUnavailableSkus()) {
+                Log.v(TAG, "Unavailable SKU: " + s);
+            }
+
             Map<String, Product> products = productDataResponse.getProductData();
             try {
-                JSONObject data = new JSONObject();
+                JSONArray data = new JSONArray();
                 for (Map.Entry<String, Product> entry : products.entrySet()) {
                     String key = entry.getKey();
                     Product product = entry.getValue();
@@ -184,7 +194,7 @@ public class IapAmazon implements PurchasingListener {
                         // Based on return values from getPrice: https://developer.amazon.com/public/binaries/content/assets/javadoc/in-app-purchasing-api/com/amazon/inapp/purchasing/item.html
                         item.put("price", priceString.replaceAll("[^0-9.,]", ""));
                     }
-                    data.put(key, item);
+                    data.put(item);
                 }
                 listener.onProductsResult(IapJNI.BILLING_RESPONSE_RESULT_OK, data.toString(), commadPtr);
             } catch (JSONException e) {

extension-iap/src/java/com/defold/iap/IapGooglePlay.java

@@ -339,7 +339,7 @@ public class IapGooglePlay implements PurchasesUpdatedListener {
             querySkuDetailsAsync(skuList, new SkuDetailsResponseListener() {
                 @Override
                 public void onSkuDetailsResponse(BillingResult billingResult, List<SkuDetails> skuDetailsList) {
-                    if (billingResult.getResponseCode() == BillingResponseCode.OK) {
+                    if (billingResult.getResponseCode() == BillingResponseCode.OK && (skuDetailsList != null) && !skuDetailsList.isEmpty()) {
                         buyProduct(skuDetailsList.get(0), purchaseListener);
                     }
                     else {