rest_filter_response_fields( WP_REST_Response $response, WP_REST_Server $server, WP_REST_Request $request )
Filter the API response to include only a white-listed set of response object fields.
Parameters
- $response
-
(Required) Current response being served.
- $server
-
(Required) ResponseHandler instance (usually WP_REST_Server).
- $request
-
(Required) The request that was used to make current response.
Return
(WP_REST_Response) Response to be served, trimmed down to contain a subset of fields.
Source
File: wp-includes/rest-api.php
function rest_filter_response_fields( $response, $server, $request ) {
if ( ! isset( $request['_fields'] ) || $response->is_error() ) {
return $response;
}
$data = $response->get_data();
$fields = is_array( $request['_fields'] ) ? $request['_fields'] : preg_split( '/[\s,]+/', $request['_fields'] );
if ( 0 === count( $fields ) ) {
return $response;
}
// Trim off outside whitespace from the comma delimited list.
$fields = array_map( 'trim', $fields );
$fields_as_keyed = array_combine( $fields, array_fill( 0, count( $fields ), true ) );
if ( wp_is_numeric_array( $data ) ) {
$new_data = array();
foreach ( $data as $item ) {
$new_data[] = array_intersect_key( $item, $fields_as_keyed );
}
} else {
$new_data = array_intersect_key( $data, $fields_as_keyed );
}
$response->set_data( $new_data );
return $response;
}
Changelog
| Version | Description |
|---|---|
| WP-4.8.0 | Introduced. |