Resolved Where/how to execute redemption code?

Hi,
I've hooked my game up to IAP and economy. I am able to initiate a Play store purchase in my game and once the test payment is made, the purchase (from a Play store point of view) is complete.

This all occurs in the ProcessPurchase method that is defined in IStoreListener and the PurchaseEventArgs contain all the details that are required to redeem the purchase in Economy. This method is synchronous.

The Economy.Purchases.RedeemGooglePlayPurchaseAsync method is asynchronous.

It seemed logical to me to include the RedeemGooglePlayPurchaseAsync call inside the ProcessPurchase method, but I can't find a nice way to call the async method from a sync method (and I don't think it's recommended).

Is there an example of how the RedeemGooglePlayPurchaseAsync method should be called correctly? It would be so helpful to have some examples of IAP/Economy integration as the code examples for both products effectively work in isolation.

The pertinent (and incorrect) code is on line 26

Code (CSharp):

1.         //Inside the Synchronous ProcessPurchase method after the purchase has been validated
2.         if (validPurchase)
3.         {
4.             var receipt = e.purchasedProduct.receipt;
5.             var wrapper = (Dictionary<string, object>)MiniJson.JsonDecode(receipt);
6.             if(wrapper == null)
7.             {
8.                 throw new System.Exception();
9.             }
10.             // Corresponds to http://docs.unity3d.com/Manual/UnityIAPPurchaseReceipts.html
11.             var store = (string)wrapper["Store"];
12.             var payload = (string)wrapper["Payload"]; // For Apple this will be the base64 encoded ASN.1 receipt
13.  
14.             // For GooglePlay payload contains more JSON
15.             if (Application.platform == RuntimePlatform.Android)
16.             {
17.                 var details = (Dictionary<string, object>)MiniJson.JsonDecode(payload);
18.                 var gpJson = (string)details["json"];
19.                 var gpSig = (string)details["signature"];
20.                 var args = new Purchases.RedeemGooglePlayStorePurchaseArgs(e.purchasedProduct.definition.id, gpJson, gpSig, (int)(e.purchasedProduct.metadata.localizedPrice * 100), e.purchasedProduct.metadata.isoCurrencyCode);
21.  
22.                 /* *************************************************************
23.                  The line below obviously won't work in a Synchronous method
24.                  **************************************************************/
25.  
26.                 var redemptionResult = await Economy.Purchases.RedeemGooglePlayPurchaseAsync(args);
27.                 if(redemptionResult.Verification.Status == GoogleVerification.StatusOptions.VALID)
28.                 {
29.                     Debug.Log("Redeemed successfully");
30.                 }
31.          
32.             }
33.  
34.      
35.         }
36.  
37.         return PurchaseProcessingResult.Complete;