Title: rest_pre_serve_request
Published: December 9, 2015
Last modified: April 28, 2025

---

# apply_filters( ‘rest_pre_serve_request’, bool $served, WP_HTTP_Response $result, WP_REST_Request $request, WP_REST_Server $server )

## In this article

 * [Description](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#description)
 * [Parameters](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#wp--skip-link--target)

Filters whether the REST API request has already been served.

## 󠀁[Description](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#description)󠁿

Allow sending the request manually – by returning true, the API result will not 
be sent to the client.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#parameters)󠁿

 `$served`bool

Whether the request has already been served.
 Default false.

`$result`[WP_HTTP_Response](https://developer.wordpress.org/reference/classes/wp_http_response/)

Result to send to the client. Usually a `WP_REST_Response`.

`$request`[WP_REST_Request](https://developer.wordpress.org/reference/classes/wp_rest_request/)

Request used to generate the response.

`$server`[WP_REST_Server](https://developer.wordpress.org/reference/classes/wp_rest_server/)

Server instance.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#source)󠁿

    ```php
    $served = apply_filters( 'rest_pre_serve_request', false, $result, $request, $this );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/rest-api/class-wp-rest-server.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/rest-api/class-wp-rest-server.php#L515)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/rest-api/class-wp-rest-server.php#L515-L515)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#related)󠁿

| Used by | Description | 
| [WP_REST_Server::serve_request()](https://developer.wordpress.org/reference/classes/wp_rest_server/serve_request/)`wp-includes/rest-api/class-wp-rest-server.php` |

Handles serving a REST API request.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/rest_pre_serve_request/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.4.0](https://developer.wordpress.org/reference/since/4.4.0/) | Introduced. |

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