River event


I'm trying to make the plugin hook [event: created, river] for Elgg 3:

elgg_register_event_handler('created', 'river', function (\Elgg\Event $event) {

      $item = $event->getObject();

      if ($item instanceof \ElggRiverItem) {

            elgg_log('test', 'ERROR');


But this hook doesn't work.
I've enabled the error log and read the documentation http://learn.elgg.org/en/3.x/guides/events-list.html#river-events
I've also tested this in the Elgg core directly on https://github.com/Elgg/Elgg/blob/3.3/engine/lib/river.php#L303
But it seems to be not working either.
Has anyone been able to successfully use this hook?
Beginning Developers

Beginning Developers

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