public IActionResult GetMetricEntries([FromRoute] int id, [FromQuery] int limit = 60)
        {
            if (_metricsManager.GetMetric(id) == null)
            {
                return NotFound(new
                {
                    message = "A metric with this ID does not exist."
                });
            }

            var metricEntries = _metricsManager.GetEntries(id, limit);
            return Ok(metricEntries);
        }