def upload_object(self, file_name, object_name, expiration_time):
    """
    Upload a file to an S3 bucket
    :param file_name:
    :param object_name:
    :param expiration_time:
    :return: url as string of the presigned url
    """
    try:
        key_prefix = str(uuid.uuid4())
        self.s3.upload_file(
            file_name, self.bucket_name, f"{key_prefix}/{object_name}",
        )
        return self.__generate_pre_signed_url(
            expiration_time, object_name, key_prefix
        )
    except ClientError as client_error:
        logger.exception(
            NOT_AVAILABLE, client_error,
        )
        raise InternalServerError(NOT_AVAILABLE)