restExample.php

<?php

use Express\Application;
use Symfony\Component\HttpFoundation\Request;

$app = new Application();

//REST API example
$app->match(
  '/user',
  function () use ($app) {
      if ($app->request()->method() == "GET") {
          $users = $app->db()->findAll('user');

          return $app->json($users);
      } else { // POST
          $user = $app->request()->content();
          $app->db()->insert('user', $user);

          return $app->json($user);
      }
  }
)->method('GET|POST');


$app->match(
  '/user/{id}',
  function ($id) use ($app) {
      $user = $app->db()->find('user', $id);
      if (!$user) {
          $app->abort(404, "No user found with id {$id}");
      }
      switch ($app->request()->method()) {
          case 'GET':
              return $app->json($user);
              break;
          case 'POST':
          case 'PUT':
              $user = $app->request()->content();
              $app->db()->update('user', $id, $user);

              return $app->json($user);
              break;
          case 'DELETE':
              $app->db()->delete('user', $id);

              return $app->response('success');
              break;
      }

      return $app->json($user);
  }
);

return $app;