Redirect:
// Drupal\Core\Url; // Symfony\Component\HttpFoundation\RedirectResponse; $url = Url::fromUri('internal:/'); $response = new RedirectResponse($url->toString()); $response->send();
**Messeges using static service:**
\Drupal::messenger()->addStatus($message);
**Other equivalents:**
addMessage(), addError(), addWarning().
**References:**