public async Task <IActionResult> Get(string key)
        {
            try
            {
                var theClassification = await _hiarcDatabase.GetClassification(key);

                return(Ok(theClassification));
            }
            catch (Exception ex)
            {
                _logger.LogError(ex.Message);
                var statusCode = StatusCodes.Status500InternalServerError;
                var error      = new Error()
                {
                    Message = ex.Message
                };
                return(StatusCode(statusCode, error));
            }
        }