public async Task <IActionResult> Update([FromBody] List <CurrentRateContractModel> rates) { try { var result = await _ratesService.ChangeRatesAsync(rates); await _handler.SendMessageToAllAsync(JsonConvert.SerializeObject(new { type = "rates", rates })); if (result == 0) { return(ErrorHelper.Error(new[] { "Nothing changed" })); } return(Ok()); } catch (Exception exception) { return(ErrorHelper.Error(new[] { exception.Message })); } }