Laravel - Notifications - Customizing Notification Channel Queues

If you would like to specify a specific queue that should be used for each notification channel supported by the notification, you may define a viaQueues method on your notification. This method should return an array of channel name / queue name pairs:

    
    /**
     * Determine which queues should be used for each notification channel.
     *
     * @return array
     */
    public function viaQueues()
    {
        return [
            'mail' => 'mail-queue',
            'slack' => 'slack-queue',
        ];
    }