Laravel redirect sub-domain to a templte

ConfigServiceProvider.php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\Request;

class ConfigServiceProvider extends ServiceProvider {
    public function register() {
        switch (Request::server("HTTP_X_FORWARDED_SERVER")) {
            case 'www.site1.com':
                $template = 'site1';
                break;
            default:
                $template = 'site';
                break;
        }
        $config = app('config');
        $config->set('template', $template);
    }
}

TemplateServiceProvider.php

namespace App\Providers;

use \Illuminate\Support\ServiceProvider;

class TemplateServiceProvider extends \Illuminate\View\ViewServiceProvider {
    public function registerViewFinder() {
        $this->app->bind('view.finder', function ($app) {
            // Set our view to the path defined in ConfigServiceProvider
            $template = $app['config']['template'];

            $paths = $app['config']['view.templates'][$template];
            return new \Illuminate\View\FileViewFinder($app['files'], $paths);
        });
    }
}

view.php

'templates' => [
        'site' => [
            realpath(base_path('resources/templates/site')),
        ],
        'site1' => [
            realpath(base_path('resources/templates/site1')),
        ],
    ],