{
  "uid": "apix-registry-perf",
  "title": "APIX Registry — Performance",
  "tags": ["apix", "registry"],
  "timezone": "browser",
  "schemaVersion": 39,
  "version": 1,
  "refresh": "30s",
  "time": { "from": "now-1h", "to": "now" },
  "templating": { "list": [] },
  "panels": [
    {
      "id": 1,
      "title": "Request rate",
      "type": "stat",
      "gridPos": { "x": 0, "y": 0, "w": 6, "h": 4 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "sum(rate(http_server_requests_seconds_count{job=\"apix-registry\"}[5m]))",
          "instant": true,
          "legendFormat": "req/s"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "reqps",
          "color": { "mode": "thresholds" },
          "thresholds": {
            "mode": "absolute",
            "steps": [
              { "color": "green", "value": null },
              { "color": "yellow", "value": 50 },
              { "color": "red", "value": 200 }
            ]
          }
        }
      },
      "options": {
        "reduceOptions": { "calcs": ["lastNotNull"] },
        "colorMode": "background",
        "graphMode": "none"
      }
    },
    {
      "id": 2,
      "title": "P50 latency",
      "type": "stat",
      "gridPos": { "x": 6, "y": 0, "w": 6, "h": 4 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "histogram_quantile(0.50, sum by (le) (rate(http_server_requests_seconds_bucket{job=\"apix-registry\"}[5m]))) * 1000",
          "instant": true,
          "legendFormat": "P50 ms"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "ms",
          "color": { "mode": "thresholds" },
          "thresholds": {
            "mode": "absolute",
            "steps": [
              { "color": "green", "value": null },
              { "color": "yellow", "value": 100 },
              { "color": "red", "value": 500 }
            ]
          }
        }
      },
      "options": {
        "reduceOptions": { "calcs": ["lastNotNull"] },
        "colorMode": "background",
        "graphMode": "none"
      }
    },
    {
      "id": 3,
      "title": "P95 latency",
      "type": "stat",
      "gridPos": { "x": 12, "y": 0, "w": 6, "h": 4 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "histogram_quantile(0.95, sum by (le) (rate(http_server_requests_seconds_bucket{job=\"apix-registry\"}[5m]))) * 1000",
          "instant": true,
          "legendFormat": "P95 ms"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "ms",
          "color": { "mode": "thresholds" },
          "thresholds": {
            "mode": "absolute",
            "steps": [
              { "color": "green", "value": null },
              { "color": "yellow", "value": 200 },
              { "color": "red", "value": 1000 }
            ]
          }
        }
      },
      "options": {
        "reduceOptions": { "calcs": ["lastNotNull"] },
        "colorMode": "background",
        "graphMode": "none"
      }
    },
    {
      "id": 4,
      "title": "Error rate",
      "type": "stat",
      "gridPos": { "x": 18, "y": 0, "w": 6, "h": 4 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "100 * sum(rate(http_server_requests_seconds_count{job=\"apix-registry\",outcome=\"SERVER_ERROR\"}[5m])) / sum(rate(http_server_requests_seconds_count{job=\"apix-registry\"}[5m]))",
          "instant": true,
          "legendFormat": "error %"
        }
      ],
      "fieldConfig": {
        "defaults": {
          "unit": "percent",
          "color": { "mode": "thresholds" },
          "thresholds": {
            "mode": "absolute",
            "steps": [
              { "color": "green", "value": null },
              { "color": "yellow", "value": 1 },
              { "color": "red", "value": 5 }
            ]
          }
        }
      },
      "options": {
        "reduceOptions": { "calcs": ["lastNotNull"] },
        "colorMode": "background",
        "graphMode": "none"
      }
    },
    {
      "id": 5,
      "title": "Latency by endpoint — P50 / P95 (ms)",
      "type": "timeseries",
      "gridPos": { "x": 0, "y": 4, "w": 12, "h": 9 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "histogram_quantile(0.50, sum by (le, uri) (rate(http_server_requests_seconds_bucket{job=\"apix-registry\"}[5m]))) * 1000",
          "legendFormat": "P50 {{uri}}"
        },
        {
          "datasource": "Prometheus",
          "expr": "histogram_quantile(0.95, sum by (le, uri) (rate(http_server_requests_seconds_bucket{job=\"apix-registry\"}[5m]))) * 1000",
          "legendFormat": "P95 {{uri}}"
        }
      ],
      "fieldConfig": {
        "defaults": { "unit": "ms" },
        "overrides": []
      },
      "options": {
        "legend": { "calcs": ["mean", "max"], "displayMode": "table", "placement": "bottom" },
        "tooltip": { "mode": "multi" }
      }
    },
    {
      "id": 6,
      "title": "Request rate by endpoint (req/s)",
      "type": "timeseries",
      "gridPos": { "x": 12, "y": 4, "w": 12, "h": 9 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "sum by (method, uri) (rate(http_server_requests_seconds_count{job=\"apix-registry\"}[5m]))",
          "legendFormat": "{{method}} {{uri}}"
        }
      ],
      "fieldConfig": {
        "defaults": { "unit": "reqps" },
        "overrides": []
      },
      "options": {
        "legend": { "calcs": ["mean", "max"], "displayMode": "table", "placement": "bottom" },
        "tooltip": { "mode": "multi" }
      }
    },
    {
      "id": 7,
      "title": "HTTP status code distribution",
      "type": "timeseries",
      "gridPos": { "x": 0, "y": 13, "w": 12, "h": 8 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "sum by (status) (rate(http_server_requests_seconds_count{job=\"apix-registry\"}[5m]))",
          "legendFormat": "HTTP {{status}}"
        }
      ],
      "fieldConfig": {
        "defaults": { "unit": "reqps" },
        "overrides": [
          {
            "matcher": { "id": "byRegexp", "options": "HTTP 4.." },
            "properties": [{ "id": "color", "value": { "fixedColor": "orange", "mode": "fixed" } }]
          },
          {
            "matcher": { "id": "byRegexp", "options": "HTTP 5.." },
            "properties": [{ "id": "color", "value": { "fixedColor": "red", "mode": "fixed" } }]
          }
        ]
      },
      "options": {
        "legend": { "calcs": ["mean"], "displayMode": "table", "placement": "bottom" },
        "tooltip": { "mode": "multi" }
      }
    },
    {
      "id": 8,
      "title": "IoT replacements endpoint — P95 latency (ms)",
      "description": "Focused view on GET /services/{id}/replacements — the hot path for IoT device discovery.",
      "type": "timeseries",
      "gridPos": { "x": 12, "y": 13, "w": 12, "h": 8 },
      "targets": [
        {
          "datasource": "Prometheus",
          "expr": "histogram_quantile(0.95, sum by (le) (rate(http_server_requests_seconds_bucket{job=\"apix-registry\",uri=\"/services/{id}/replacements\"}[5m]))) * 1000",
          "legendFormat": "P95 /replacements"
        },
        {
          "datasource": "Prometheus",
          "expr": "histogram_quantile(0.50, sum by (le) (rate(http_server_requests_seconds_bucket{job=\"apix-registry\",uri=\"/services/{id}/replacements\"}[5m]))) * 1000",
          "legendFormat": "P50 /replacements"
        }
      ],
      "fieldConfig": {
        "defaults": { "unit": "ms" },
        "overrides": []
      },
      "options": {
        "legend": { "calcs": ["mean", "max"], "displayMode": "table", "placement": "bottom" },
        "tooltip": { "mode": "multi" }
      }
    }
  ]
}