/// <summary>
/// Launches the purchase flow of a <see cref="Kiln.Product"/>. If the platform doesn't support
/// In App Purchases (check <see cref="SupportsIAP"/>) the Task will get an <see cref="Kiln.Exception"/>
/// </summary>
/// <param name="productID">Identifier of the <see cref="Kiln.Product"/> to be purchased</param>
/// <param name="payload">Additional data to send with the purchase</param>
/// <returns>Task that'll return a <see cref="Kiln.Purchase"/> upon successful completion</returns>
public static Task <IPurchase> PurchaseProduct(string productID, string payload)
{
#if ANDROID_DEVICE
return(Bridge.PurchaseProduct(productID, payload));
#else
CheckInitialized();
if (!SupportsIAP())
{
throw new Kiln.Exception("In App Purchases not supported.");
}
var task = _iap.PurchaseProduct(productID, payload);
return(task);
#endif
}
