public async Task RequestShipping(Core.ShippingRequest sr)
        {
            if (sr == null)
            {
                return;
            }

            var shipping = Shipping.Create(sr);
            await _repo.Insert(shipping);

            // yes, shipping svc is slow... =)
            await Task.Delay(5000);

            // set shipping delivered so order can be marked as complete
            // Note: other workflows not implemented
            shipping.Status = ShippingStatus.Delivered;

            await _bus.Publish(new Core.ShippingResponse
            {
                Number    = shipping.Number,
                AccountId = shipping.AccountId,
                OrderId   = shipping.OrderId,
                Status    = shipping.Status.Parse <Core.ShippingStatus>()
            });
        }