InAppBillingPlugin: Upgrading Plugin.InAppBilling from 3.0.0-beta to 3.1.0-beta causes purchase error (Android)

After upgrading Plugin.InAppBilling from 3.0.0-beta to 3.1.0-beta, it’s no longer possible to purchase products on my Android version of the app. The user always gets a error message. Is there something else todo beside the NuGet package upgrade and the removal of InAppBillingImplementation.HandleActivityResult(requestCode, resultCode, data); from OnActivityResult(int requestCode, Result resultCode, Intent data)? Or is this a actual bug?

Restoring seems to work so I’m not sure what causes this on new purchases. Just tested it with 3 devices.

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 21 (17 by maintainers)

Most upvoted comments

If we don’t follow the recommended procedure with pending purchases we might be giving our in-app products away for free to those who want to pay outside the app. This is a small group of users of course (unless it becomes common knowledge!).

If the result of PurchaseAsync is PurchaseState.PaymentPending, store the order details locally and inform the user that they will have access to the product when the payment completes
When the user starts the app (and/or visits a particular page), if the stored PurchaseState is PaymentPending, call GetPurchasesAsync and query the result for a purchase that matches the stored purchase.
If the PurchaseState for this purchase is still PaymentPending, show the same no-access message
If the PurchaseState is Purchased, call ConsumePurchaseAsync or AcknowledgePurchaseAsync, depending on the product type

I’ve excluded any verification you might do on your own server, if applicable.

BigPaul on Aug 23, 2020

I would like also to ask soemthing about the beta version.

Im using 3.10 beta too and i see things have changed from the time the documentation https://jamesmontemagno.github.io/InAppBillingPlugin/ was written. for example billing.ConnectAsync() now only takes bool as parameter. I want to ask this: should i use the stable version for now or try to use the 4.0 version. For the 4 version we dont have for now documentation, am i right? If i use the current stable version do we know any ETA that my inapp purchases will stop working? Thanks

EDIT: here it says https://www.youtube.com/watch?v=Cj5vq1AOJeQ&list=PLWz5rJ2EKKc_xXXubDti2eRnIKU0p7wHd&index=57&t=570s that Google Play Billing 2.x will be mandatory on May 1 2021. I think the 3.0 version of InAppBilling is using 2.x so we are good for more than one year

CDrosos on Aug 24, 2020

@Sebastian1989101 In the test environment, if the purchase is not acknowledged or consumed within 5 minutes, it is refunded. In production, we have 3 days to acknowledge or consume. It was clearly identified as a ‘test’ purchase.

BigPaul on Aug 22, 2020