获取客户端 IP

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

function handleRequest(request) {
  // 通过 EO-Client-IP 头部获取客户端 IP
  const ip = request.headers.get('EO-Client-IP') || '';
  // 响应 JSON 数据
  return new Response(JSON.stringify({ ip }), {
    headers: { 'content-type': 'application/json' },
  });
}