public async Task <IActionResult> ProcessPayment(PaymentRequestDTO paymentRequest)
        {
            try
            {
                if (ModelState.IsValid)
                {
                    //in this the processing the payment take place
                    var paymentState = await _paymentRequestService.ProcessingPayment(paymentRequest);

                    var paymentResponse = new PaymentResponseDTO()
                    {
                        IsProcessed = paymentState.PaymentState == PaymentStateEnum.Processed
                        ,
                        PaymentState = paymentState
                    };
                    //this will check if the payment is processed or not

                    if (!paymentResponse.IsProcessed)
                    {
                        return(StatusCode(500, new { error = "Payment could not be processed" }));
                    }
                    return(Ok(paymentResponse));
                }
                else
                {
                    return(BadRequest(ModelState));
                }
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, ex.Message);
                return(StatusCode(500));
            }
        }