108. not available

[Alexei Eshchenko]

Hello

 require DRUPAL_ROOT . '/sites/all/libraries/centrifugo/vendor/autoload.php';

  $client = new \phpcent\Client('https://****:8000/api');
  $client->setApiKey('****');

$channel = 'core';
$data = [
    'action' => 'notification',
    'data' => [
      'type' => 'warning',
      'title' => ' title',
      'content' => 'content',
      'duration' => 10000,
    ],
  ];

  $client->publish($channel, $data);

works fine (only I do not like the delay of almost a second for the server response)

just after

print_r($client->history($channel));

print_r($client->presence($channel));

for both requests, server returns 108, not available

[Alexander Emelin]

@dgastudio hello

By default, presence and history features are disabled. See https://centrifugal.github.io/centrifugo/server/channels/#channel-options for channel options which allow to turn them on.

For example add this to your config:

{
  "history_size": 100,
  "history_lifetime": 300,
  "presence": true
}

This will enable both history and presence for channels without namespace. But I recommend using namespaces when enabling features. See https://centrifugal.github.io/centrifugo/faq/#whats-the-best-way-to-organize-channel-configuration

[Alexei Eshchenko]

Fine! Many thanks!

now i can check if the user is in the channel before the ws message and if he is offline i will send him a push notification instead

[Alexander Emelin]

Welcome!

You should be aware of the fact that your approach is racy – since there is a gap in time between check and sending. As I pointed before the correct way to work with push notifications described here. And you better always send messages to WebSocket, without trying to do this based on online status.