Laravel Multi-Tenant Multi-DB Multi-Domain TenantServiceProv

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use Illuminate\Support\Facades\Route;
use App\Tenant\ManagerTenant;
use Illuminate\Support\Facades\View;

class TenantServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
        $manager = app(ManagerTenant::class);
        if ($manager->domainIsMain())
        {
            $this->registerTenantRoutes();
            $this->registerTenantAdminRoutes();
        }
        //Auto detect admin views
        View::addNamespace('admin', resource_path().'/views/admin/');
    }

    private function registerTenantRoutes()
    {
        Route::group($this->tenantRouteConfiguration(), function () {
            $route_file = config('tenant.routes.frontend');
            if(!file_exists($route_file)){
                throw new \Exception(trans('tenant.tenant_route'));
                return;
            }
            require $route_file;
        });
    }

    private function registerTenantAdminRoutes()
    {
        Route::group($this->tenantAdminRouteConfiguration(), function () {
            $admin_route_file = config('tenant.routes.backend');
            if(!file_exists($admin_route_file)){
                throw new \Exception(trans('tenant.tenant_admin_route'));
            }
            require $admin_route_file;
        });
    }

    private function tenantRouteConfiguration()
    {
        return [
            'namespace' => config('tenant.namespaces.frontend'),
            'middleware' => config('tenant.middlewares.frontend'),
        ];
    }

    private function tenantAdminRouteConfiguration()
    {
        return [
            'namespace' => config('tenant.namespaces.backend'),
            'middleware' => config('tenant.middlewares.backend'),
        ];
    }
}