public async Task <IReadOnlyList <Order> > GetOrdersForUserAsync(string buyerEmail)
        {
            var spec = new OrderWithOrderItemAndOrderingSpec(buyerEmail);

            return(await _uow.Repository <Order>().GetAllBySpecAsync(spec));
        }
        public async Task <Order> GetOrdersByIdAsync(int id, string buyerEmail)
        {
            var spec = new OrderWithOrderItemAndOrderingSpec(id, buyerEmail);

            return(await _uow.Repository <Order>().GetEntityBySpecAsync(spec));
        }