func (s *storageRESTServer) UpdateMetadataHandler(p *MetadataHandlerParams) (grid.NoPayload, *grid.RemoteErr) {
	if !s.checkID(p.DiskID) {
		return grid.NewNPErr(errDiskNotFound)
	}
	volume := p.Volume
	filePath := p.FilePath

	return grid.NewNPErr(s.getStorage().UpdateMetadata(context.Background(), volume, filePath, p.FI, p.UpdateOpts))
}

// CheckPartsHandler - check if a file metadata exists.

func NewRemoteErrf(format string, a ...any) *RemoteErr {
	r := RemoteErr(fmt.Sprintf(format, a...))
	return &r
}

// NewNPErr is a helper to no payload and optional remote error.
// The error type is not preserved.
func NewNPErr(err error) (NoPayload, *RemoteErr) {
	if err == nil {
		return NoPayload{}, nil
	}
	r := RemoteErr(err.Error())
	return NoPayload{}, &r
}