Extending Laravel's Validator

AppServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use App\Verifiers\RedisPresenceVerifier;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        $this->app->extend('validator', function ($validator, $app) {
            $validator->setPresenceVerifier($app[RedisPresenceVerifier::class]);

            return $validator;
        });
    }
}