public IActionResult DeleteEntries([FromRoute] int id)
        {
            var metric = _metricsManager.GetMetric(id);
            if (metric == null)
            {
                return NotFound(new
                {
                    message = "A metric with this ID does not exist."
                });
            }

            _metricsManager.ClearEntries(metric.Id);
            return NoContent();
        }