WordPress at a glance
filter is not described

rest_prepare_comment filter-hook . WP 4.7.0

Filters a comment returned from the API.

Allows modification of the comment right before it is returned.

Usage

add_filter( 'rest_prepare_comment', 'filter_function_name_5282', 10, 3 );
function filter_function_name_5282( $response, $comment, $request ){
	// filter...

	return $response;
}
$response(WP_REST_Response)
The response object.
$comment(WP_Comment)
The original comment object.
$request(WP_REST_Request)
Request used to generate the response.

Where the hook is called

WP_REST_Comments_Controller::prepare_item_for_response()
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php 964
return apply_filters( 'rest_prepare_comment', $response, $comment, $request );

Where the hook is used (in WP core)

Does not used.