public async Task <IActionResult> GetCustomerById(int id, string fields = "")
{
if (id <= 0)
{
return(Error(HttpStatusCode.BadRequest, "id", "invalid id"));
}
var customer = await _customerApiService.GetCustomerByIdAsync(id);
if (customer == null)
{
return(Error(HttpStatusCode.NotFound, "customer", "not found"));
}
var customersRootObject = new CustomersRootObject();
customersRootObject.Customers.Add(customer);
var json = JsonFieldsSerializer.Serialize(customersRootObject, fields);
return(new RawJsonActionResult(json));
}