function auth()
{
  global $api;
  global $config;
  try {
    $response = $api->post('/auth/login', [
      GuzzleHttp\RequestOptions::JSON => ['email' => $config['login'], 'password' => $config['password']]
    ]);
    $content = json_decode($response->getBody()->getContents());
    $token = $content->token;
    setConfig('token', $token);

    $user = request('/user');
    $ucrId = $user->currentCompany->ucrId;
    if (!$ucrId) die('no UCR ID');
    setConfig('UCR', $ucrId);

  } catch (Exception $e) {
    echo $e->getMessage();
  }
}