public function parse_request() {
		global $wp;

		// Map query vars to their keys, or get them if endpoints are not supported.
		foreach ( $this->get_query_vars() as $key => $var ) {
			if ( isset( $_GET[ $var ] ) ) { // WPCS: input var ok, CSRF ok.
				$wp->query_vars[ $key ] = sanitize_text_field( wp_unslash( $_GET[ $var ] ) ); // WPCS: input var ok, CSRF ok.
			} elseif ( isset( $wp->query_vars[ $var ] ) ) {
				$wp->query_vars[ $key ] = $wp->query_vars[ $var ];
			}
		}
	}