defer gr.Close()
		hashReader, err := hash.NewReader(ctx, gr, gr.ObjInfo.Size, "", "", gr.ObjInfo.Size)
		if err != nil {
			return setRestoreHeaderFn(oi, toObjectErr(err, bucket, object))
		}
		pReader := NewPutObjReader(hashReader)
		_, err = er.PutObject(ctx, bucket, object, pReader, ropts)
		return setRestoreHeaderFn(oi, toObjectErr(err, bucket, object))
	}

	res, err := er.NewMultipartUpload(ctx, bucket, object, ropts)

	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	rawReader := hashReader
	pReader := NewPutObjReader(rawReader)
	var objectEncryptionKey crypto.ObjectKey

	// Check if bucket encryption is enabled
	sseConfig, _ := globalBucketSSEConfigSys.Get(bucket)
	sseConfig.Apply(formValues, sse.ApplyOptions{

	hr, err := hash.NewReader(context.Background(), data, size, md5hex, sha256hex, size)
	if err != nil {
		t.Fatal(err)
	}
	return NewPutObjReader(hr)
}

// calculateSignedChunkLength - calculates the length of the overall stream (data + metadata)
func calculateStreamContentLength(dataLen, chunkSize int64) int64 {
	if dataLen <= 0 {
		return 0
	}