index.php

<?php

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

require_once 'vendor/autoload.php';

use Relay\Relay;

$request = Zend\Diactoros\ServerRequestFactory::fromGlobals(
    $_SERVER,
    $_GET,
    $_POST,
    $_COOKIE,
    $_FILES
);

$loader = new Twig_Loader_Filesystem('.');
$twig = new \Twig_Environment($loader, array(
    'debug' => true,
    'cache' => false,
));

$router = new Aura\Router\RouterContainer();
$map = $router->getMap();
$map->get('todo.list', '/', function ($request) use ($twig) {
    $tasks = [
        [
            'id' => 1,
            'description' => 'Aprender inglés',
            'done' => false
        ],
        [
            'id' => 1,
            'description' => 'Hacer la tarea',
            'done' => true
        ],
        [
            'id' => 1,
            'description' => 'Pasear al perro',
            'done' => false
        ],
        [
            'id' => 1,
            'description' => 'Ver el curso de introducción a PHP',
            'done' => false
        ]
    ];
    $response = new Zend\Diactoros\Response\HtmlResponse($twig->render('template.twig', [
        'tasks' => $tasks
    ]));
    return $response;
});

$relay = new Relay([
    new Middlewares\AuraRouter($router),
    new Middlewares\RequestHandler()
]);

$response = $relay->handle($request);

foreach ($response->getHeaders() as $name => $values) {
    foreach ($values as $value) {
        header(sprintf('%s: %s', $name, $value), false);
    }
}
echo $response->getBody();