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apply_filters( "rest_query_var-{$key}", string $value )

Filters the query_vars used in get_items() for the constructed query.

The dynamic portion of the hook name, $key, refers to the query_var key.

Used By	Description
wp-includes/rest-api/endpoints/class-wp-rest-revisions-controller.php: WP_REST_Revisions_Controller::prepare_items_query()	Determines the allowed query_vars for a get_items() response and prepares them for WP_Query.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::prepare_items_query()	Determines the allowed query_vars for a get_items() response and prepares them for WP_Query.

Version	Description
4.7.0	Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/rest_query_var-key