Block countries in Europe using Cloudflare Workers

worker.js

addEventListener('fetch', event => {
  event.respondWith(handleRequest(event.request))
})

const countryCodes = [
  'BE', 'BG', 'CZ', 'DK', 'DE', 'EE', 'IE', 'EL', 'ES', 'FR', 'HR', 'IT', 'CY', 'LV', 'LT', 'LU', 'HU', 'MT', 'NL', 
  'AT', 'PL', 'PT', 'RO', 'SI', 'SK', 'FI', 'SE', 'UK'
];

/**
 * Fetch and log a request
 * @param {Request} request
 */
async function handleRequest(request) {
  let country = request.headers.get("CF-IpCountry")
  if(countryCodes.includes(country)) {
    return new Response('Sorry, EU... GDPR', { status: 403 });
  }

  return fetch(request)
}