jwt refresh token

$app->post('auth/refresh-token', ['middleware' => 'jwt.refresh', function() {  
    try {  
        $old_token = JWTAuth::getToken();  
        $token = JWTAuth::refresh($old_token);  
        JWTAuth::invalidate($old_token);  
    } catch (TokenExpiredException $e) {  
        throw new AuthException(  
            Constants::get('error_code.refresh_token_expired'),  
            trans('errors.refresh_token_expired'), $e);  
    } catch (JWTException $e) {  
        throw new AuthException(  
            Constants::get('error_code.token_invalid'),  
            trans('errors.token_invalid'), $e);  
    }  
  
    return response()->json(compact('token'));  
}]);