@Override
    public Publisher<PutResult> put(Path filePath, OutputStream outputStream) {

        Optional<File> optionalFile = find(filePath);

        if (optionalFile.isPresent()) {

            updateFile(optionalFile.get());
            log.info(FILE_OVERWRITTEN);
            return Mono.just(PutResult.OVERWRITTEN);
        }

        File folderMetaData = new File();

        folderMetaData.setName(filePath.toAbsolutePath().toString());
        folderMetaData.setMimeType(FILE_MIME_TYPE);

        Optional<byte[]> data = Optional.empty();

        try {
            data = Optional.of(Files.readAllBytes(filePath));
        } catch (IOException e) {
            e.printStackTrace();
        }

        InputStreamContent fileContent = null;
        if (data.isPresent()) {
            fileContent = new InputStreamContent(StringUtils.EMPTY, new ByteArrayInputStream(data.get()));
        }

        log.info(String.format(UPLOAD_START, filePath.toAbsolutePath().toString()));

        try {
            drive.files()
                    .create(folderMetaData, fileContent)
                    .execute();
        } catch (IOException e) {
            e.printStackTrace();
        }

        log.info(String.format(UPLOAD_DONE, filePath.toAbsolutePath().toString()));

        return Mono.just(PutResult.SUCCESS);
    }