}

	// if x-amz-metadata-directive says REPLACE then
	// we extract metadata from the input headers.
	if isDirectiveReplace(r.Header.Get(xhttp.AmzMetadataDirective)) {
		emetadata, err := extractMetadataFromReq(ctx, r)
		if err != nil {
			return nil, err
		}
		if sc != "" {
			emetadata[xhttp.AmzStorageClass] = sc
		}
		return emetadata, nil
	}

	if sc != "" {