Optimal method for swiftly broadcasting database notifications in Laravel

database-notification-broadcasting.md

Put this into event service providor's boot method

public function boot(): void
{
    // Observe the DatabaseNotification model for created events
    DatabaseNotification::observe(new class {
        
        // Listen to the created event 
        public function created(DatabaseNotification $notification): void
        {
            // Broadcast the notification to the user 
            broadcast(new class($notification) {
                
                // Hold the notification in a property 
                public function __construct(public DatabaseNotification $notification) {}
                
                // Define the channel to broadcast the notification 
                public function broadcast()
                {
                    // Get the proper channel name based on the notification type 
                    $channel = strtolower(class_basename(str($this->notification->type)->plural()));

                    // Broadcast to the notifiable model's private channel 
                    return new PrivateChannel($channel.'.'.$this->notification->notifiable_id);
                }

                // define the event name as it is anonymous class
                public function broadcastAs(): string
                {
                     return 'DatabaseNotificationCreated';
                }
            });
        }
    });
}

listen to the event like this

Echo.private('users.' + userId)
    // make sure to register your listener with a leading . character
    .listen('.DatabaseNotificationCreated', (e) => {
        console.log(e.notification);
    });

bonus: in livewire

#[On('echo-private:customers.{customers.id},.DatabaseNotificationCreated')]
public function notify($notification)
{
    // Handle the notification here 
}

Note: Don't forget to set authentication for the channel in routes\channels.php

You may create classes for observer and event both.