{
  "uid": "briven-realtime-subs",
  "title": "realtime · subscriptions",
  "tags": ["briven", "realtime"],
  "timezone": "browser",
  "schemaVersion": 39,
  "refresh": "30s",
  "time": { "from": "now-1h", "to": "now" },
  "panels": [
    {
      "id": 1,
      "title": "active subscriptions",
      "type": "timeseries",
      "datasource": { "type": "prometheus", "uid": "Prometheus" },
      "gridPos": { "x": 0, "y": 0, "w": 12, "h": 8 },
      "targets": [
        {
          "expr": "briven_realtime_subscriptions_active"
        }
      ]
    },
    {
      "id": 2,
      "title": "active LISTEN channels",
      "type": "timeseries",
      "datasource": { "type": "prometheus", "uid": "Prometheus" },
      "gridPos": { "x": 12, "y": 0, "w": 12, "h": 8 },
      "targets": [
        {
          "expr": "briven_realtime_channels_active"
        }
      ]
    },
    {
      "id": 3,
      "title": "NOTIFY → fan-out rate (msg/s)",
      "type": "timeseries",
      "datasource": { "type": "prometheus", "uid": "Prometheus" },
      "gridPos": { "x": 0, "y": 8, "w": 12, "h": 8 },
      "targets": [
        {
          "expr": "rate(briven_realtime_notifies_total[1m])"
        }
      ]
    },
    {
      "id": 4,
      "title": "listener reconnect events (last 1h)",
      "type": "logs",
      "datasource": { "type": "loki", "uid": "Loki" },
      "gridPos": { "x": 12, "y": 8, "w": 12, "h": 8 },
      "targets": [
        {
          "expr": "{service=\"realtime\"} |= \"realtime_listen_attached\""
        }
      ]
    }
  ]
}