curl --request POST \
  --url https://{domain}/api/TransactionNotify \
  --header 'Content-Type: application/json' \
  --data '
{
  "HwSerial": "0434334921100366",
  "MachineId": 71234996,
  "NayaxTransactionId": 2004545072,
  "SparkTransactionId": "12c7cec2-c690-4425-9a1f-db0db60e2d8c",
  "Amount": 10,
  "CardLast4Digits": "1234",
  "CardHash": "7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6",
  "CardUid": "1288528281124927",
  "ServiceStationNumber": "5",
  "SiteId": 2,
  "MachineAuTime": "20240205194122328"
}
'

import requests

url = "https://{domain}/api/TransactionNotify"

payload = {
    "HwSerial": "0434334921100366",
    "MachineId": 71234996,
    "NayaxTransactionId": 2004545072,
    "SparkTransactionId": "12c7cec2-c690-4425-9a1f-db0db60e2d8c",
    "Amount": 10,
    "CardLast4Digits": "1234",
    "CardHash": "7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6",
    "CardUid": "1288528281124927",
    "ServiceStationNumber": "5",
    "SiteId": 2,
    "MachineAuTime": "20240205194122328"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    HwSerial: '0434334921100366',
    MachineId: 71234996,
    NayaxTransactionId: 2004545072,
    SparkTransactionId: '12c7cec2-c690-4425-9a1f-db0db60e2d8c',
    Amount: 10,
    CardLast4Digits: '1234',
    CardHash: '7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6',
    CardUid: '1288528281124927',
    ServiceStationNumber: '5',
    SiteId: 2,
    MachineAuTime: '20240205194122328'
  })
};

fetch('https://{domain}/api/TransactionNotify', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{domain}/api/TransactionNotify",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'HwSerial' => '0434334921100366',
    'MachineId' => 71234996,
    'NayaxTransactionId' => 2004545072,
    'SparkTransactionId' => '12c7cec2-c690-4425-9a1f-db0db60e2d8c',
    'Amount' => 10,
    'CardLast4Digits' => '1234',
    'CardHash' => '7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6',
    'CardUid' => '1288528281124927',
    'ServiceStationNumber' => '5',
    'SiteId' => 2,
    'MachineAuTime' => '20240205194122328'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://{domain}/api/TransactionNotify"

	payload := strings.NewReader("{\n  \"HwSerial\": \"0434334921100366\",\n  \"MachineId\": 71234996,\n  \"NayaxTransactionId\": 2004545072,\n  \"SparkTransactionId\": \"12c7cec2-c690-4425-9a1f-db0db60e2d8c\",\n  \"Amount\": 10,\n  \"CardLast4Digits\": \"1234\",\n  \"CardHash\": \"7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6\",\n  \"CardUid\": \"1288528281124927\",\n  \"ServiceStationNumber\": \"5\",\n  \"SiteId\": 2,\n  \"MachineAuTime\": \"20240205194122328\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://{domain}/api/TransactionNotify")
  .header("Content-Type", "application/json")
  .body("{\n  \"HwSerial\": \"0434334921100366\",\n  \"MachineId\": 71234996,\n  \"NayaxTransactionId\": 2004545072,\n  \"SparkTransactionId\": \"12c7cec2-c690-4425-9a1f-db0db60e2d8c\",\n  \"Amount\": 10,\n  \"CardLast4Digits\": \"1234\",\n  \"CardHash\": \"7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6\",\n  \"CardUid\": \"1288528281124927\",\n  \"ServiceStationNumber\": \"5\",\n  \"SiteId\": 2,\n  \"MachineAuTime\": \"20240205194122328\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{domain}/api/TransactionNotify")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n  \"HwSerial\": \"0434334921100366\",\n  \"MachineId\": 71234996,\n  \"NayaxTransactionId\": 2004545072,\n  \"SparkTransactionId\": \"12c7cec2-c690-4425-9a1f-db0db60e2d8c\",\n  \"Amount\": 10,\n  \"CardLast4Digits\": \"1234\",\n  \"CardHash\": \"7f2082ba5dbccf706b6987e75b62083f65b5695bc2d8c827c3e46769d007a9e6\",\n  \"CardUid\": \"1288528281124927\",\n  \"ServiceStationNumber\": \"5\",\n  \"SiteId\": 2,\n  \"MachineAuTime\": \"20240205194122328\"\n}"

response = http.request(request)
puts response.read_body

{
  "NayaxTransactionId": 2004545072,
  "SparkTransactionId": "12c7cec2-c690-4425-9a1f-db0db60e2d8c",
  "HwSerial": "0434334921100366",
  "MachineId": 71234996,
  "SiteId": 2,
  "ServiceStationNumber": "5",
  "Status": {
    "Verdict": "Approved",
    "StatusMessage": "Session will begin immediately."
  }
}