PutObjectMetadata(context.Context, string, string, ObjectOptions) (ObjectInfo, error)
	DecomTieredObject(context.Context, string, string, FileInfo, ObjectOptions) error

	// ObjectTagging operations
	PutObjectTags(context.Context, string, string, string, ObjectOptions) (ObjectInfo, error)
	GetObjectTags(context.Context, string, string, ObjectOptions) (*tags.Tags, error)

}

// PutObjectTags - replace or add tags to an existing object
func (z *erasureServerPools) PutObjectTags(ctx context.Context, bucket, object string, tags string, opts ObjectOptions) (ObjectInfo, error) {
	object = encodeDirObject(object)
	if z.SinglePool() {
		return z.serverPools[0].PutObjectTags(ctx, bucket, object, tags, opts)
	}

	if !opts.NoLock {

		return ObjectInfo{}, toObjectErr(err, bucket, object)
	}

	return fi.ToObjectInfo(bucket, object, opts.Versioned || opts.VersionSuspended), nil
}

// PutObjectTags - replace or add tags to an existing object
func (er erasureObjects) PutObjectTags(ctx context.Context, bucket, object string, tags string, opts ObjectOptions) (ObjectInfo, error) {
	if !opts.NoLock {
		// Lock the object before updating tags.

		opts.UserDefined[ReservedMetadataPrefixLower+TaggingTimestamp] = UTCNow().Format(time.RFC3339Nano)
	}

	// Put object tags
	objInfo, err = objAPI.PutObjectTags(ctx, bucket, object, tagsStr, opts)
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	if dsc.ReplicateAny() {