Official Unity IAP FAQs

ap-unity · Dec 21, 2016

@emperor1412,

emperor1412 said: ↑

I won't return PurchaseProcessingResult.Completed immediately, because I need to do receipt validation with my server so it will return PurchaseProcessingResult.Pending;

Then later when the validation succeed, I will call ConfirmPendingPurchase(e.purchasedProduct);
This flow work completely ok on iOS but not Android.
Click to expand...

I think the issue may be that you are calling ConfirmPendingPurchase from within ProcessPurchase. That isn't the intended way to handle that situation, so it may result in unexpected behavior such as what you are seeing.

If you are doing validation on your server, you should return PurchaseProcessingResult.Pending in ProcessPurchase and then after the server has validated the purchase, you should call ConfirmPendingPurchase. But this should not happen in the same method.

keomanla · Dec 22, 2016

ap-unity said: ↑

@emperor1412,

I think the issue may be that you are calling ConfirmPendingPurchase from within ProcessPurchase. That isn't the intended way to handle that situation, so it may result in unexpected behavior such as what you are seeing.

If you are doing validation on your server, you should return PurchaseProcessingResult.Pending in ProcessPurchase and then after the server has validated the purchase, you should call ConfirmPendingPurchase. But this should not happen in the same method.
Click to expand...

@ap-unity , I did exactly what you think it should be, I copy and paste by mistake that missed the last 2 lines which return PurchaseProcessingResult.Pending.

The call ConfirmPendingPurchase in ProcessPurchase is actually inside a lamda which will be called when the verification request to server is done, so the return at the end of ProcessPurchase will always come before the ConfirmPendingPurchase call inside the lamda.

Here is the post again, anyway the bug still there, there is another thread where people also talk about this bug:

https://forum.unity3d.com/threads/unity-iap-android-test-purchased-not-being-consumed.382236/

emperor1412 said: ↑

Unity 5.4.3

I face with the problem on Android: when I purchased a consumable product and do receipt validation on my server side for the first time, it works ok. But from the second time, I won't be able to buy this item again (it's a money package) because it always return the receipt of previous success purchase, and thus my server won't accept it because it has already been used.

public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgse)

I won't return PurchaseProcessingResult.Completed immediately, because I need to do receipt validation with my server so it will return PurchaseProcessingResult.Pending;

Then later when the validation succeed, I will call ConfirmPendingPurchase(e.purchasedProduct);
This flow work completely ok on iOS but not Android.

At first I tested the game using test account (google email added to the list of test users) that was allowed to make purchase without charge, later I remove this email from the list, deleted the app and download it from CH play again, but the problem still existed.

Here is the code I have, Unity guys please have a look, this bug still occur until now, December 9th 2016.

Code (CSharp):

public PurchaseProcessingResult ProcessPurchase (PurchaseEventArgs e)

{

Debug.Log ("Purchase OK: " + e.purchasedProduct.definition.id);

Debug.Log ("Receipt: " + e.purchasedProduct.receipt);

string receipt = e.purchasedProduct.receipt;

Dictionary<string, object> wrapper = JSONDotNetHelper.DeserializeObject<Dictionary<string, object>>(receipt);

if (null == wrapper)

{

if (cbFail != null)

{

cbFail("Invalid receipts data");

}

return PurchaseProcessingResult.Complete;

}

Debug.Log ("Step 1");

foreach (KeyValuePair<string, object> item in wrapper) {

Debug.LogFormat("Key:{0}\t-\tValue:{1}", item.Key, item.Value);

}

Debug.Log ("Step 2");

//var store = (string)wrapper["Store"];

var payload = (string)wrapper["Payload"];

#if UNITY_ANDROID

Dictionary<string, object> details = JSONDotNetHelper.DeserializeObject<Dictionary<string, object>>(payload);

foreach (KeyValuePair<string, object> item in details) {

Debug.LogFormat("Key:{0}\t-\tValue:{1}", item.Key, item.Value);

}

Debug.Log ("Step 3");

var json = (string)details["json"]; // This is the INAPP_PURCHASE_DATA information

var sig = (string)details["signature"]; // This is the INAPP_DATA_SIGNATURE information

Debug.LogFormat("CurrencyCode: {0}", e.purchasedProduct.metadata.isoCurrencyCode);

Debug.LogFormat("PurchasePrice: {0}", Convert.ToUInt32(e.purchasedProduct.metadata.localizedPrice));

Debug.LogFormat("ReceiptJson: {0}", json);

Debug.LogFormat("Signature: {0}", sig);

ValidateGooglePlayPurchaseRequest req = new ValidateGooglePlayPurchaseRequest

{

CurrencyCode = e.purchasedProduct.metadata.isoCurrencyCode,

PurchasePrice = Convert.ToUInt32(e.purchasedProduct.metadata.localizedPrice),

ReceiptJson = json,

Signature = sig

};

PlayFabClientAPI.ValidateGooglePlayPurchase(req, result =>

{

_storeController.ConfirmPendingPurchase(e.purchasedProduct);

GrantPurchase(e.purchasedProduct.definition.id);

Debug.Log("Validate GooglePlay Success: " + result.ToString());

if (cbSuccess != null)

{

cbSuccess(currentItem);

}

}, error =>

{

_storeController.ConfirmPendingPurchase(e.purchasedProduct);

Debug.Log("Validate GooglePlay Fail: " + error.ErrorMessage);

if (cbFail != null)

{

cbFail(error.ErrorMessage);

}

});

#elif UNITY_IOS

Debug.LogFormat("CurrencyCode: {0}", e.purchasedProduct.metadata.isoCurrencyCode);

Debug.LogFormat("PurchasePrice: {0}", Convert.ToUInt32(e.purchasedProduct.metadata.localizedPrice));

Debug.LogFormat("ReceiptData: {0}", payload);

ValidateIOSReceiptRequest req1 = new ValidateIOSReceiptRequest

{

CurrencyCode = e.purchasedProduct.metadata.isoCurrencyCode,

PurchasePrice = Convert.ToInt32(e.purchasedProduct.metadata.localizedPrice),

ReceiptData = payload

};

PlayFabClientAPI.ValidateIOSReceipt(req1, result =>

{

_storeController.ConfirmPendingPurchase(e.purchasedProduct);

GrantPurchase(e.purchasedProduct.definition.id);

Debug.Log("Validate Apple Success: " + result.ToString());

if (cbSuccess != null)

{

cbSuccess(currentItem);

}

}, error =>

{

_storeController.ConfirmPendingPurchase(e.purchasedProduct);

Debug.Log("Validate Apple Fail: " + error.ErrorMessage);

if (cbFail != null)

{

cbFail(error.ErrorMessage);

}

});

#endif

return PurchaseProcessingResult.Pending;

}

Click to expand...

nicholasr · Jan 4, 2017

Closing this thread from general posts, to encourage usage of new threads per-issue.

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