rest_pre_serve_request – Hook | Developer.WordPress.org

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

Filters whether the REST API request has already been served.

Description

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

$servedbool: Whether the request has already been served.
Default false.
$resultWP_HTTP_Response: Result to send to the client. Usually a WP_REST_Response.
$requestWP_REST_Request: Request used to generate the response.
$serverWP_REST_Server: Server instance.

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

Used by	Description
WP_REST_Server::serve_request()`wp-includes/rest-api/class-wp-rest-server.php`	Handles serving a REST API request.

Version	Description
4.4.0	Introduced.

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