<?php
$app->group('/uf', function($app) {
  $folder = implode(DIRECTORY_SEPARATOR, [
    __DIR__,
    'uf'
  ]);
  if (file_exists($folder)) {
    $files = new DirectoryIterator($folder);
    foreach ($files as $file) {
      if ($file->isDir()) {
        continue;
      }
      include_once $file->getRealPath();
    }
  }
});