public async Task <Models.Customer> CreateNewCustomerAsync(Models.Customer customer)
        {
            if (customer == null)
            {
                return(null);
            }

            customer.SetDefaultValues();

            var documentDbProvider = new DocumentDBProvider();

            var response = await documentDbProvider.CreateCustomerAsync(customer);

            return(response.StatusCode == HttpStatusCode.Created ? (dynamic)response.Resource : null);
        }