How to track if the product purchased successfully or not using UNITY IAP

Working on Unity IAP and implement the subscription
Here is the code :

Code (CSharp):

1. public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs args)
2.     {
3.         // Or ... a subscription product has been purchased by this user.
4.        if (String.Equals(args.purchasedProduct.definition.id, kProductIDSubscription, StringComparison.Ordinal))
5.         {
6.             StartCoroutine ("processingUserMembershipStatus");
7.         }
8.         // Or ... an unknown product has been purchased by this user. Fill in additional products here....
9.    
10.         return PurchaseProcessingResult.Complete;
11.     }

Everything works fine. But when I use Coroutine in "IF " condition in the above code error comes up.
Any help would be much appreciated. Thanks in anticipation.

 

What is the exact syntax of the error that you are receiving?

 

Hi This is the error I'm getting
MissingReferenceException: The object of type 'IAPManager' has been destroyed but you are still trying to access it.

 

Yes, you are likely trying to call into IAPManager on a different thread context. If you need a specific variable value, perhaps you could pass it as a parameter to processingUserMembershipStatus or similar? This is not specific to IAP, but looks to be in code that you have written. Without seeing your full code, it would be difficult to troubleshoot.

 

In coroutine I'm using simple code.
Let me share my whole code.

Code (CSharp):

1.     public PurchaseProcessingResult ProcessPurchase(PurchaseEventArgs args)
2.     {
3.      
4.         if (String.Equals(args.purchasedProduct.definition.id, kProductIDSubscription, StringComparison.Ordinal))
5.         {
6.             StartCoroutine(testing());
7.         }
8.         return PurchaseProcessingResult.Complete;
9.     }
10.  
11. IEnumerator testing() {
12.         yield return new WaitForSeconds (1.0f);
13.         Debug.Log ("Hello after 1s");
14.         yield return new WaitForSeconds (1.0f);
15.         Debug.Log ("Hello after 2nd");
16.     }
17.  
18.  

 

Like
"OnPurchaseFailed"

Code (CSharp):

1. public void OnPurchaseFailed(Product product, PurchaseFailureReason failureReason)
2.     {
3.         // A product purchase attempt did not succeed. Check failureReason for more detail. Consider sharing
4.         // this reason with the user to guide their troubleshooting actions.
5.         Debug.Log(string.Format("OnPurchaseFailed: FAIL. Product: '{0}', PurchaseFailureReason: {1}", product.definition.storeSpecificId, failureReason));
6.     }

is there any "OnPurchaseSuccess" callback or method

 

So it works without the co-routine in place? ProcessPurchase is called when it succeeds https://docs.unity3d.com/ScriptReference/Purchasing.IStoreListener.ProcessPurchase.html

 

yes it works fine without coroutine

 

But in the code snippet that I have shared. I haven't load any other scene,

 

So a Debug.Log statement just prior to the coroutine execution logs the message, but one immediately after does not? Where do you instantiate and persist IAPManager? I will test here with a simple coroutine such as yours also. The caller for "yield return.." might be out of scope or similar.