Prime31 "In-App Billing" plugin, where to put my logic?

OK, maybe someone else will have similar problems...

I ran tests on some devices (Galaxy Ace 2.3.6, LG-P350 2.2.1) and both fired purchaseSignatureVerifiedEvent. The purchaseSucceededEvent was never called, I have no idea what this is for.

Anyway, you get all needed data (includes productid) from the signedData string in the hashtable that is passed to the event as json. Using Json.Net you can copy the snippet below.

 using Newtonsoft.Json;
 
 public sealed class SignedDataResponse
 {
     public sealed class Order
     {
         [JsonProperty(PropertyName = "notificationId")]
         public string NotificationId;
 
         [JsonProperty(PropertyName = "orderId")]
         public string OrderId;
 
         [JsonProperty(PropertyName = "packageName")]
         public string PackageName;
 
         [JsonProperty(PropertyName = "productId")]
         public string ProductId;
 
         [JsonProperty(PropertyName = "purchaseTime")]
         public long PurchaseTime;
 
         [JsonProperty(PropertyName = "purchaseState")]
         public int PurchaseState;
     }
 
     [JsonProperty(PropertyName = "nonce")]
     public long Nonce;
 
     [JsonProperty(PropertyName = "orders")]
     public Order[] Orders;
 }

your callback:

 private void PurchaseSignatureVerifiedEvent(Hashtable payload)
 {
     if (null != payload)
     {
         var signedData = payload["signedData"].ToString();
         var signature = payload["signature"].ToString();
 
         var response = Newtonsoft.Json.JsonConvert.DeserializeObject<SignedDataResponse>(signedData);
 
         UnityEngine.Debug.Log("productId: " + response.Orders[0].ProductId);
     }
 }