Presence Channels in Laravel

Auctibles is a sale events platform that generates a multiplayer game experience by showing playful notifications whenever users enter the event.

Such an experience can be created in the Laravel PHP framework through presence channels.

Channels

The presence of authenticated users is broadcast in Laravel on private presence channels.

In routes/channels.php,

Broadcast::channel('room.{room}', function (User $user, Room $room) {
        return ['id' => $user->id, 'role' => session('role'), 'name' => $user->full_name];            
});

Listeners

In Livewire, we define listeners to the presence events:

private function presence_listeners()
{
return [
    "echo-presence:room.{$this->room->id},here" => 'hereOnline',
    "echo-presence:room.{$this->room->id},joining" => 'joinOnline',
    "echo-presence:room.{$this->room->id},leaving" => 'leaveOnline', 
    "echo-presence:room.{$this->room->id},error" => 'errorOnline', 
];
}

Processing Presence Information

We show a toast using livewire-toaster whenever we receive a notification on users entering or leaving an event.