{
  "name": "Test User",
  "number": "4111111111111111",
  "expiration": "10/25",
  "cvv": "123",
  "email": "test.user@email.com",
  "phoneNumber": "1234567890",
  "address": "10 Unknown Street",
  "city": "Far Town",
  "state": "NA",
  "postalCode": "123456",
  "country": "US",
  "amount": 10.50,
  "unit": "USD",
  "originDomain": "example.com",
  "referenceId": "123-GA-456",
  "notifyUrl": "https://notify.me",
  "successUrl": "https://success.payment.com",
  "failureUrl": "http://fail.payment.com",
  "browserInfo": {
    "browserAcceptHeader": "application/json, text/plain, */*",
    "browserColorDepth": "24",
    "browserIP": "127.0.0.1",
    "browserJavaEnabled": false,
    "browserJavascriptEnabled": true,
    "browserLanguage": "en-US",
    "browserScreenHeight": "1080",
    "browserScreenWidth": "1920",
    "browserTZ": "300",
    "browserUserAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36"
  }
}

const creditCardPayment = {
  name: "Test User",
  number: "4111111111111111",
  expiration: "10/25",
  cvv: "123",
  email: "test.user@email.com",
  phoneNumber: "1234567890",
  address: "10 Unknown Street",
  city: "Far Town",
  state: "NA",
  postalCode: "123456",
  country: "US",
  amount: 10.50,
  unit: "USD",
  originDomain: "example.com",
  referenceId: "123-GA-456",
  notifyUrl: "https://notify.me",
  successUrl: "https://success.payment.com",
  failureUrl: "http://fail.payment.com",
  browserInfo: {
    browserAcceptHeader: navigator.userAgent,
    browserColorDepth: screen.colorDepth.toString(),
    browserIP: "127.0.0.1", // Get from server
    browserJavaEnabled: navigator.javaEnabled(),
    browserJavascriptEnabled: true,
    browserLanguage: navigator.language,
    browserScreenHeight: screen.height.toString(),
    browserScreenWidth: screen.width.toString(),
    browserTZ: new Date().getTimezoneOffset().toString(),
    browserUserAgent: navigator.userAgent
  }
};

// Send payment request
const response = await fetch('https://your-h2h-endpoint.com', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': 'your-api-key'
  },
  body: JSON.stringify(creditCardPayment)
});

function collectBrowserInfo() {
  return {
    browserAcceptHeader: document.querySelector('meta[http-equiv="Accept"]')?.content || "*/*",
    browserColorDepth: screen.colorDepth.toString(),
    browserIP: "127.0.0.1", // Must be collected server-side
    browserJavaEnabled: navigator.javaEnabled ? navigator.javaEnabled() : false,
    browserJavascriptEnabled: true,
    browserLanguage: navigator.language || navigator.userLanguage,
    browserScreenHeight: screen.height.toString(),
    browserScreenWidth: screen.width.toString(),
    browserTZ: new Date().getTimezoneOffset().toString(),
    browserUserAgent: navigator.userAgent
  };
}