VA Winpay

$httpMethod  = 'POST';
            $endpointUrl = $detail->jenis_bayar_pk1;
            $timestamp   = date(DateTime::RFC3339);
            $dateTime    = new DateTime($timestamp);
            $dateTime->modify('+1 hours');
            $expiredDate = $dateTime->format(DateTime::RFC3339);
            $totalAmount = array(
                'value'    => $detail->invoice_total,
                'currency' => "IDR",
            );
            // Kode Bank
            $additionalInfo = array(
                'channel' => $detail->jenis_bayar_code,
            );

            $payload = array(
                "customerNo"            => $detail->pelanggan_nomor,
                "virtualAccountName"    => $detail->pelanggan_nama,
                "trxId"                 => $detail->invoice_nomor,
                "totalAmount"           => $totalAmount,
                "virtualAccountTrxType" => 'c',
                "expiredDate"           => $expiredDate,
                "additionalInfo"        => $additionalInfo,
            );

            $body                  = json_encode($payload);
            $hashedBody            = strtolower(bin2hex(hash('sha256', json_encode($payload, JSON_UNESCAPED_SLASHES), true)));
            $signature             = $this->generateSignatureRequest($httpMethod, $endpointUrl, $hashedBody, $timestamp);
            $requestHeadersRequest = array(
                'Content-Type: application/json',
                'Accept: application/json',
                'X-TIMESTAMP: ' . $timestamp,
                'X-SIGNATURE: ' . $signature,
                'X-PARTNER-ID: ' . $detail->jenis_bayar_mk,
                'X-EXTERNAL-ID: ' . uniqid(),
                'CHANNEL-ID: WEB',
            );

            $urlAPI         = $detail->jenis_bayar_url;
            $urlPostrequest = $urlAPI . $detail->jenis_bayar_pk1;
            $curl           = curl_init();
            curl_setopt_array($curl, array(
                CURLOPT_URL            => $urlPostrequest,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING       => '',
                CURLOPT_MAXREDIRS      => 10,
                CURLOPT_TIMEOUT        => 0,
                CURLOPT_FOLLOWLOCATION => true,
                CURLOPT_HTTP_VERSION   => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST  => 'POST',
                CURLOPT_POSTFIELDS     => $body,
                CURLOPT_HTTPHEADER     => $requestHeadersRequest,
            ));

            $Respx = curl_exec($curl);
            curl_close($curl);
            $rsp  = json_decode($Respx, true);
            $Code = $rsp['responseCode'];
            if ($Code == '2002700') {
                $virtualAccountNo = $rsp['virtualAccountData']['virtualAccountNo'];
                $partnerServiceId = $rsp['virtualAccountData']['partnerServiceId'];
                // Update Payment Code
                $invoice_id  = $detail->invoice_id;
                $dataPayment = array(
                    'winpay_data'  => $Respx,
                    'reff_id'      => trim($partnerServiceId),
                    'payment_code' => trim($virtualAccountNo),
                );

                $this->db->where('invoice_id', $invoice_id);
                $this->db->update('sid_invoice', $dataPayment);

                $invoice_id_enc = $this->secure->encrypt_url($invoice_id);
                $response       = ['status' => 'success', 'url_payment' => site_url('client/invoice/payment/' . strtolower($KodeBank) . '/' . $invoice_id_enc)];
            } else {
                $message  = $rsp['responseMessage'];
                $response = ['status' => 'error', 'status_message' => $message];
            }

            echo json_encode($response);