deno-bootstrap/src/interfaces/controllers/root.controller.ts

import Controller from 'if/controllers/controller.class.ts';

function MetricsController(): Controller {
  const controller = new Controller();

  controller.setHandler('/', 'GET', (req: Request) => {
    return controller.response(req, Deno.env.get('GREETING') ?? '');
  });

  return controller;
}

export default MetricsController();