How to use dependency injection with routes in laravel

How to configure route instances (Illuminate/Support/Facades/Route.php) to use already registered services through DI?

For example I register my singleton:

$this->app->singleton('api_controller', function ($app) {
    return new Controller('config_value');
});

And controller itself:

class ApiController extends Controller
{
   private $configValue;

   public function __construct(string $configValue)
   {
      $this->configValue = $configValue;
   }

   public function getConfigValue()
   {
       return $this->configValue;
   }
}

Then declaring route:

Route::get('config-value', 'ApiController@getConfigValue')->name('getConfigValue');

But after calling the API, Route initiates new instance of ApiController, and not the one I declared as singleton so config_value is not passed to controller. Is it possible to configure Route instances?

Tired alternate route with app instance, but it does not seem to find api_controller service:

Route::get('config-value', function () { return app('api_controller')->getConfigValue(); })->name('getConfigValue');

In Container.php line 752:

  Class api_controller does not exist

via Chebli Mohamed