case OperationTimedOut:
		apiErr = ErrRequestTimedout
	case BackendDown:
		apiErr = ErrBackendDown
	case ObjectNameTooLong:
		apiErr = ErrKeyTooLongError
	case dns.ErrInvalidBucketName:
		apiErr = ErrInvalidBucketName
	case dns.ErrBucketConflict:
		apiErr = ErrBucketAlreadyExists
	default:
		if strings.Contains(err.Error(), "request declared a Content-Length") {
			apiErr = ErrIncompleteBody