retry.go

func retry(maxRetry int, interval time.Duration, f func() error) error {
	var error error
	for attempt := 0; attempt < maxRetry; attempt++ {
		if err := f(); err != nil {
			error = err
			if attempt < maxRetry-1 {
				time.Sleep(interval)
			}
			continue
		}

		return nil
	}

	return fmt.Errorf("operation failed after %d attempts: %w", maxRetry, error)
}

func retry(maxRetry int, interval time.Duration, fn func() error) {
	for attempt := 0; attempt < maxRetry; attempt++ {
		if err := fn(); err == nil {
			return
		}
		time.Sleep(interval)
	}
}