curl --request POST \
  --url https://engine-api.unomiq.com/engine/metrics \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Unomiq-App-Id: <x-unomiq-app-id>' \
  --data '
{
  "filter": {
    "and": [
      {
        "field": "span_attributes.http.status_code",
        "op": "gte",
        "value": "200"
      },
      {
        "field": "span_attributes.http.status_code",
        "op": "lte",
        "value": "299"
      },
      {
        "or": [
          {
            "field": "span_kind",
            "op": "eq",
            "value": "SERVER"
          },
          {
            "field": "span_kind",
            "op": "eq",
            "value": "CLIENT"
          }
        ]
      }
    ]
  }
}
'

{
  "trace_count": 123,
  "duration": {
    "mean": 123,
    "median": 123,
    "p50": 123,
    "p90": 123,
    "p95": 123,
    "p99": 123,
    "min": 123,
    "max": 123,
    "stddev": 123
  },
  "cost": {
    "mean": 123,
    "median": 123,
    "p50": 123,
    "p90": 123,
    "p95": 123,
    "p99": 123,
    "min": 123,
    "max": 123,
    "stddev": 123
  },
  "spans_per_trace": {
    "mean": 123,
    "median": 123,
    "p50": 123,
    "p90": 123,
    "p95": 123,
    "p99": 123,
    "min": 123,
    "max": 123,
    "stddev": 123
  }
}