qds/app/Notifications/PushAlertNotification.php

<?php

namespace App\Notifications;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Notification;
use NotificationChannels\WebPush\WebPushMessage;
use NotificationChannels\WebPush\WebPushChannel;


class PushAlertNotification extends Notification
{
    use Queueable;

    /**
     * Create a new notification instance.
     */
    public function __construct()
    {
        //
    }

    public function via($notifiable)
    {
        return [WebPushChannel::class];
    }

    public function toWebPush($notifiable, $notification)
    {
        return (new WebPushMessage)
            ->title('New Alert 🚨')
            ->icon('/pwa-192x192.png')
            ->body('You have a new notification')
            ->action('Open App', 'open_app')
            ->data(['url' => '/admin']);
    }

    /**
     * Get the notification's delivery channels.
     *
     * @return array<int, string>
     */
    // public function via(object $notifiable): array
    // {
    //     return ['mail'];
    // }

    /**
     * Get the mail representation of the notification.
     */
    public function toMail(object $notifiable): MailMessage
    {
        return (new MailMessage)
                    ->line('The introduction to the notification.')
                    ->action('Notification Action', url('/'))
                    ->line('Thank you for using our application!');
    }

    /**
     * Get the array representation of the notification.
     *
     * @return array<string, mixed>
     */
    public function toArray(object $notifiable): array
    {
        return [
            //
        ];
    }
}