Function Error

modules/caddyhttp/errors.go:32–53

Error is a convenient way for a Handler to populate the essential fields of a HandlerError. If err is itself a HandlerError, then any essential fields that are not set will be populated.

(statusCode int, err error)

// HandlerError, then any essential fields that are not
// set will be populated.
func Error(statusCode int, err error) HandlerError {
	const idLen = 9
	var he HandlerError
	if errors.As(err, &he) {
		if he.ID == "" {
			he.ID = randString(idLen, true)
		}
		if he.Trace == "" {
			he.Trace = trace()
		}
		if he.StatusCode == 0 {
			he.StatusCode = statusCode
		}
		return he
	}
	return HandlerError{
		ID:         randString(idLen, true),
		StatusCode: statusCode,
		Err:        err,
		Trace:      trace(),
	}
}

// HandlerError is a serializable representation of
// an error from within an HTTP handler.