uniqueID = fmt.Sprintf("%X", args.Object.ModTime.UnixNano())
	}

	respElements := map[string]string{
		"x-amz-request-id": args.RespElements["requestId"],
		"x-amz-id-2":       args.RespElements["nodeId"],
		"x-minio-origin-endpoint": func() string {
			if globalMinioEndpoint != "" {
				return globalMinioEndpoint
			}
			return getAPIEndpoints()[0]
		}(), // MinIO specific custom elements.
	}

func extractRespElements(w http.ResponseWriter) map[string]string {
	if w == nil {
		return map[string]string{}
	}
	return map[string]string{
		"requestId":      w.Header().Get(xhttp.AmzRequestID),
		"nodeId":         w.Header().Get(xhttp.AmzRequestHostID),
		"content-length": w.Header().Get(xhttp.ContentLength),
		// Add more fields here.
	}
}

// Trims away `aws-chunked` from the content-encoding header if present.

	// These are static for all objects extracted.
	reqParams := extractReqParams(r)
	respElements := map[string]string{
		"requestId": w.Header().Get(xhttp.AmzRequestID),
		"nodeId":    w.Header().Get(xhttp.AmzRequestHostID),
	}
	if sc == "" {
		sc = storageclass.STANDARD
	}

	putObjectTar := func(reader io.Reader, info os.FileInfo, object string) error {
		size := info.Size()