* A notification message.
*/
public function setMessage() {
- drupal_set_message($this->t('This is a dummy message.'));
+ $this->messenger()->addStatus($this->t('This is a dummy message.'));
return new Response($this->t('A message was set.'));
// Do not return anything, so the current request does not result in a themed
// page with messages. The message will be displayed in the following request