Request object for validate_callback
A quick search through the WP-API source revealed where validate_callback is being used: wp-api/lib/infrastructure/class-wp-rest-request.php $valid_check = call_user_func( $arg[‘validate_callback’], $param, $this, $key ); In this case, $this is an instance of WP_Rest_Request – so there’s one. Now, for sanitize_callback: $this->params[ $type ][ $key ] = call_user_func( $attributes[‘args’][ $key ][‘sanitize_callback’], $value, $this, $key ); Same file, there’s … Read more