curl --request POST \
  --url https://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback \
  --header 'Content-Type: application/json' \
  --data '
{
  "eventType": "CARD_OPERATION_TRANSACTION",
  "eventId": "evt-12345678",
  "timestamp": 1640995200000,
  "tenantId": "wsb-12345678",
  "accountId": "wsb-account-123",
  "cardId": "card-12345678",
  "cardholderId": "ch-12345678",
  "transactionId": "tx-12345678",
  "workOrderId": "wo-12345678",
  "status": "COMPLETED",
  "result": "SUCCESS",
  "data": {},
  "errorMessage": "Insufficient funds",
  "errorCode": "INSUFFICIENT_FUNDS",
  "retryCount": 0,
  "maxRetries": 3
}
'

import requests

url = "https://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback"

payload = {
    "eventType": "CARD_OPERATION_TRANSACTION",
    "eventId": "evt-12345678",
    "timestamp": 1640995200000,
    "tenantId": "wsb-12345678",
    "accountId": "wsb-account-123",
    "cardId": "card-12345678",
    "cardholderId": "ch-12345678",
    "transactionId": "tx-12345678",
    "workOrderId": "wo-12345678",
    "status": "COMPLETED",
    "result": "SUCCESS",
    "data": {},
    "errorMessage": "Insufficient funds",
    "errorCode": "INSUFFICIENT_FUNDS",
    "retryCount": 0,
    "maxRetries": 3
}
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({
    eventType: 'CARD_OPERATION_TRANSACTION',
    eventId: 'evt-12345678',
    timestamp: 1640995200000,
    tenantId: 'wsb-12345678',
    accountId: 'wsb-account-123',
    cardId: 'card-12345678',
    cardholderId: 'ch-12345678',
    transactionId: 'tx-12345678',
    workOrderId: 'wo-12345678',
    status: 'COMPLETED',
    result: 'SUCCESS',
    data: {},
    errorMessage: 'Insufficient funds',
    errorCode: 'INSUFFICIENT_FUNDS',
    retryCount: 0,
    maxRetries: 3
  })
};

fetch('https://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback', 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://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback",
  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([
    'eventType' => 'CARD_OPERATION_TRANSACTION',
    'eventId' => 'evt-12345678',
    'timestamp' => 1640995200000,
    'tenantId' => 'wsb-12345678',
    'accountId' => 'wsb-account-123',
    'cardId' => 'card-12345678',
    'cardholderId' => 'ch-12345678',
    'transactionId' => 'tx-12345678',
    'workOrderId' => 'wo-12345678',
    'status' => 'COMPLETED',
    'result' => 'SUCCESS',
    'data' => [
        
    ],
    'errorMessage' => 'Insufficient funds',
    'errorCode' => 'INSUFFICIENT_FUNDS',
    'retryCount' => 0,
    'maxRetries' => 3
  ]),
  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://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback"

	payload := strings.NewReader("{\n  \"eventType\": \"CARD_OPERATION_TRANSACTION\",\n  \"eventId\": \"evt-12345678\",\n  \"timestamp\": 1640995200000,\n  \"tenantId\": \"wsb-12345678\",\n  \"accountId\": \"wsb-account-123\",\n  \"cardId\": \"card-12345678\",\n  \"cardholderId\": \"ch-12345678\",\n  \"transactionId\": \"tx-12345678\",\n  \"workOrderId\": \"wo-12345678\",\n  \"status\": \"COMPLETED\",\n  \"result\": \"SUCCESS\",\n  \"data\": {},\n  \"errorMessage\": \"Insufficient funds\",\n  \"errorCode\": \"INSUFFICIENT_FUNDS\",\n  \"retryCount\": 0,\n  \"maxRetries\": 3\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://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback")
  .header("Content-Type", "application/json")
  .body("{\n  \"eventType\": \"CARD_OPERATION_TRANSACTION\",\n  \"eventId\": \"evt-12345678\",\n  \"timestamp\": 1640995200000,\n  \"tenantId\": \"wsb-12345678\",\n  \"accountId\": \"wsb-account-123\",\n  \"cardId\": \"card-12345678\",\n  \"cardholderId\": \"ch-12345678\",\n  \"transactionId\": \"tx-12345678\",\n  \"workOrderId\": \"wo-12345678\",\n  \"status\": \"COMPLETED\",\n  \"result\": \"SUCCESS\",\n  \"data\": {},\n  \"errorMessage\": \"Insufficient funds\",\n  \"errorCode\": \"INSUFFICIENT_FUNDS\",\n  \"retryCount\": 0,\n  \"maxRetries\": 3\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.finhub.cloud/api/v2.1/fincard/virtual/webhook/callback")

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  \"eventType\": \"CARD_OPERATION_TRANSACTION\",\n  \"eventId\": \"evt-12345678\",\n  \"timestamp\": 1640995200000,\n  \"tenantId\": \"wsb-12345678\",\n  \"accountId\": \"wsb-account-123\",\n  \"cardId\": \"card-12345678\",\n  \"cardholderId\": \"ch-12345678\",\n  \"transactionId\": \"tx-12345678\",\n  \"workOrderId\": \"wo-12345678\",\n  \"status\": \"COMPLETED\",\n  \"result\": \"SUCCESS\",\n  \"data\": {},\n  \"errorMessage\": \"Insufficient funds\",\n  \"errorCode\": \"INSUFFICIENT_FUNDS\",\n  \"retryCount\": 0,\n  \"maxRetries\": 3\n}"

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

{
  "success": true,
  "code": 200,
  "msg": "Success",
  "eventId": "evt-12345678",
  "processingTime": 1640995200000
}