Laravel_Application_YS/app/Events/ValidatePost.php

<?php

namespace App\Events;

use Illuminate\Broadcasting\Channel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Http\Request;

class ValidatePost
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    public $request;

    /**
     * Create a new event instance.
     *
     * @return void
     */
    public function __construct(Request $request) { $this->request = $request; }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return \Illuminate\Broadcasting\Channel|array
     */
    public function broadcastOn() { return new PrivateChannel('channel-name'); }
}