Routing to controller with optional parameters

There is no way to call a controller from a Route:::get closure.

Use:

Route::get('/path/{id}/{start?}/{end?}', 'Controller@index');

and handle the parameters in the controller function:

public function index($id, $start = null, $end = null)
{
    if (!$start) {
        // set start
    }
        
    if (!$end) {
        // set end
    }
        
    // do other stuff
}