WP_REST_Post_Search_Handler::prepare_item_links

	public function prepare_item_links( $id ) {
		$post = get_post( $id );

		$links = array();

		$item_route = rest_get_route_for_post( $post );
		if ( ! empty( $item_route ) ) {
			$links['self'] = array(
				'href'       => rest_url( $item_route ),
				'embeddable' => true,
			);
		}

		$links['about'] = array(
			'href' => rest_url( 'wp/v2/types/' . $post->post_type ),
		);

		return $links;
	}