{
  "request": {
    "method": "POST",
    "url": "https://api.tingg.africa/v3/checkout-api/checkout-request/express-request",
    "headers": {
      "apikey": "tg_live_abc1234567",
      "Authorization": "Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
      "Content-Type": "application/json"
    },
    "body": {
      "merchant_transaction_id": "MX-2026-05-24-0001",
      "service_code": "TINGGSVC001",
      "country_code": "KE",
      "currency_code": "KES",
      "request_amount": 1500,
      "request_description": "Order #42 — Premium subscription",
      "account_number": "ACC-42",
      "msisdn": "254712345678",
      "customer_first_name": "Wanjiru",
      "customer_last_name": "Mwangi",
      "customer_email": "wanjiru@example.co.ke",
      "callback_url": "https://merchant.example.co.ke/tingg/ipn",
      "success_redirect_url": "https://merchant.example.co.ke/checkout/success",
      "fail_redirect_url": "https://merchant.example.co.ke/checkout/failed",
      "language_code": "en"
    }
  },
  "response": {
    "status": 200,
    "body": {
      "status_code": 200,
      "status_description": "Successful",
      "checkout_request_id": "99887766",
      "short_url": "https://online.tingg.africa/checkout/Abc12",
      "long_url": "https://online.tingg.africa/checkout/express?accessKey=abcdef1234567890..."
    }
  }
}