rest_pre_dispatch – Hook | Developer.WordPress.org

apply_filters( ‘rest_pre_dispatch’, mixed $result, WP_REST_Server $server, WP_REST_Request $request )

Filters the pre-calculated result of a REST API dispatch request.

Description

Allow hijacking the request before dispatching by returning a non-empty. The returned value will be used to serve the request instead.

$resultmixed: Response to replace the requested version with. Can be anything a normal endpoint can return, or null to not hijack the request.
$serverWP_REST_Server: Server instance.
$requestWP_REST_Request: Request used to generate the response.

$result = apply_filters( 'rest_pre_dispatch', null, $this, $request );

Used by	Description
WP_REST_Server::serve_batch_request_v1()`wp-includes/rest-api/class-wp-rest-server.php`	Serves the batch/v1 request.
WP_REST_Server::dispatch()`wp-includes/rest-api/class-wp-rest-server.php`	Matches the request to a callback and call it.

Version	Description
4.4.0	Introduced.

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