AdonisJS TypeScript

// start/routes.ts
import router from '@adonisjs/core/services/router';

const GIF = Buffer.from('R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==', 'base64');

router.get('/pixel.gif', ({ response }) => {
  response.header('Content-Type', 'image/gif');
  response.header('Cache-Control', 'no-store');
  return response.send(GIF);
});