Deno.serve TypeScript

import { decodeBase64 } from 'jsr:@std/encoding/base64';

const GIF = decodeBase64('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==');

Deno.serve({ port: 8080 }, (req) => {
  if (new URL(req.url).pathname !== '/pixel.gif') {
    return new Response('Not Found', { status: 404 });
  }
  return new Response(GIF, {
    headers: { 'Content-Type': 'image/gif', 'Cache-Control': 'no-store' },
  });
});