[
  {
    "id": "metrics-demo-tab",
    "type": "tab",
    "label": "POD Gateway · Metrics output",
    "disabled": false,
    "info": "Central Gateway metrics flow. It calls the free Open-Meteo API without an API key, exports Prometheus metrics and shows the raw latency events. Install @yroshcha/node-red-contrib-nodered-metrics before importing this flow."
  },
  {
    "id": "metrics-demo-server",
    "type": "pod-gateway-server-config",
    "name": "Central Gateway + Redis",
    "host": "0.0.0.0",
    "port": 8080,
    "path": "/ws",
    "redisUrl": "redis://127.0.0.1:6379",
    "redisRejectUnauthorized": true,
    "redisKeyPrefix": "pod-gateway-metrics-demo",
    "redisConsumer": "metrics-demo-gateway",
    "redisMaxQueueSize": 10000,
    "redisResultTtlSeconds": 3600,
    "redisDeleteOnAck": true,
    "redisRetryPollMs": 250,
    "rateLimits": "{\"weather\":{\"rate\":10,\"burst\":2}}",
    "concurrency": 8,
    "upstreamTimeoutMs": 60000,
    "maxAttempts": 0,
    "verboseLogging": true,
    "credentials": {}
  },
  {
    "id": "metrics-demo-api",
    "type": "pod-gateway-api-config",
    "name": "Open-Meteo public API",
    "baseUrl": "https://api.open-meteo.com",
    "headers": "{\"Accept\":\"application/json\"}",
    "apiKeyHeader": "",
    "apiKeyPrefix": "",
    "credentials": {}
  },
  {
    "id": "metrics-demo-adapter",
    "type": "pod-gateway-adapter",
    "name": "GET Kyiv weather",
    "server": "metrics-demo-server",
    "api": "metrics-demo-api",
    "operation": "weather/getKyivCurrent",
    "label": "Open-Meteo · Kyiv current weather",
    "path": "/v1/forecast?latitude=50.4501&longitude=30.5234&current=temperature_2m,relative_humidity_2m,wind_speed_10m&timezone=Europe/Kyiv",
    "method": "GET",
    "headers": "{}",
    "idempotencyHeader": "",
    "description": "Fetch current Kyiv weather from the free Open-Meteo API without an API key."
  },
  {
    "id": "metrics-demo-connector",
    "type": "pod-gateway-config",
    "name": "Local POD connector",
    "url": "ws://127.0.0.1:8080/ws",
    "podId": "pod-metrics-demo",
    "connectTimeout": 10000,
    "reconnectInterval": 3000,
    "verboseLogging": true,
    "credentials": {}
  },
  {
    "id": "metrics-demo-inject",
    "type": "inject",
    "z": "metrics-demo-tab",
    "name": "Call free Kyiv weather API",
    "props": [{ "p": "payload" }],
    "repeat": "",
    "crontab": "",
    "once": false,
    "onceDelay": 0.1,
    "topic": "",
    "payload": "{}",
    "payloadType": "json",
    "x": 160,
    "y": 120,
    "wires": [["metrics-demo-call"]]
  },
  {
    "id": "metrics-demo-call",
    "type": "pod-gateway-call",
    "z": "metrics-demo-tab",
    "name": "Gateway Call: Open-Meteo",
    "gateway": "metrics-demo-connector",
    "operation": "weather/getKyivCurrent",
    "timeout": 60000,
    "priority": "normal",
    "x": 410,
    "y": 120,
    "wires": [["metrics-demo-result"], ["metrics-demo-error"]]
  },
  {
    "id": "metrics-demo-result",
    "type": "debug",
    "z": "metrics-demo-tab",
    "name": "API result",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 650,
    "y": 100,
    "wires": []
  },
  {
    "id": "metrics-demo-error",
    "type": "debug",
    "z": "metrics-demo-tab",
    "name": "Gateway error",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 650,
    "y": 140,
    "wires": []
  },
  {
    "id": "metrics-demo-output",
    "type": "pod-gateway-metrics",
    "z": "metrics-demo-tab",
    "name": "Gateway Metrics → connect palette here",
    "server": "metrics-demo-server",
    "events": "request.completed",
    "x": 220,
    "y": 300,
    "wires": [["metrics-demo-debug", "metrics-demo-latency", "metrics-prom-request-count", "metrics-prom-total-latency"]]
  },
  {
    "id": "metrics-demo-debug",
    "type": "debug",
    "z": "metrics-demo-tab",
    "name": "Raw gateway metric",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 560,
    "y": 280,
    "wires": []
  },
  {
    "id": "metrics-demo-latency",
    "type": "function",
    "z": "metrics-demo-tab",
    "name": "Extract latency for metrics palette",
    "func": "const metric = (msg.metric && typeof msg.metric === 'object') ? msg.metric : ((msg.payload && typeof msg.payload === 'object') ? msg.payload : {})\nconst timings = (metric.timings && typeof metric.timings === 'object') ? metric.timings : {}\nconst asNumber = value => {\n    const number = Number(value)\n    return Number.isFinite(number) ? number : null\n}\nconst upstreamMs = asNumber(timings.upstreamMs ?? (metric.event === 'upstream.completed' ? metric.durationMs : null))\nconst totalMs = asNumber(timings.totalMs ?? (metric.event === 'request.completed' ? metric.durationMs : null))\nif (upstreamMs === null && totalMs === null) return null\nmsg.topic = `${msg.topic || 'pod-gateway'}/latency`\nmsg.payload = {\n    service: metric.service || '',\n    operation: metric.operation || '',\n    outcome: metric.outcome || metric.status || '',\n    ...(upstreamMs === null ? {} : { upstreamMs }),\n    ...(totalMs === null ? {} : { totalMs })\n}\nreturn msg;",
    "outputs": 1,
    "timeout": 0,
    "noerr": 0,
    "initialize": "",
    "finalize": "",
    "libs": [],
    "x": 570,
    "y": 340,
    "wires": [["metrics-demo-latency-debug"]]
  },
  {
    "id": "metrics-demo-latency-debug",
    "type": "debug",
    "z": "metrics-demo-tab",
    "name": "Latency fields",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 840,
    "y": 340,
    "wires": []
  },
  {
    "id": "metrics-demo-upstream-output",
    "type": "pod-gateway-metrics",
    "z": "metrics-demo-tab",
    "name": "Gateway Metrics: upstream latency",
    "server": "metrics-demo-server",
    "events": "upstream.completed",
    "x": 250,
    "y": 440,
    "wires": [["metrics-demo-upstream-debug", "metrics-prom-upstream-latency"]]
  },
  {
    "id": "metrics-demo-upstream-debug",
    "type": "debug",
    "z": "metrics-demo-tab",
    "name": "Upstream metric event",
    "active": true,
    "tosidebar": true,
    "console": false,
    "tostatus": false,
    "complete": "true",
    "targetType": "full",
    "statusVal": "",
    "statusType": "auto",
    "x": 590,
    "y": 420,
    "wires": []
  },
  {
    "id": "metrics-prom-request-count",
    "type": "nodered-metric",
    "z": "metrics-demo-tab",
    "name": "Prom: Gateway requests",
    "metric": "metrics-prom-request-config",
    "operation": "inc",
    "autoStep": false,
    "step": "",
    "stepType": "str",
    "status": "success",
    "statusType": "str",
    "value": "1",
    "valueType": "num",
    "duration": "",
    "durationType": "num",
    "durationUnit": "seconds",
    "labels": [
      { "name": "service", "value": "payload.service", "valueType": "msg" },
      { "name": "operation", "value": "payload.operation", "valueType": "msg" },
      { "name": "outcome", "value": "payload.outcome", "valueType": "msg" }
    ],
    "x": 570,
    "y": 500,
    "wires": []
  },
  {
    "id": "metrics-prom-total-latency",
    "type": "nodered-metric",
    "z": "metrics-demo-tab",
    "name": "Prom: Gateway total latency",
    "metric": "metrics-prom-request-config",
    "operation": "observe",
    "autoStep": false,
    "step": "",
    "stepType": "str",
    "status": "success",
    "statusType": "str",
    "value": "1",
    "valueType": "num",
    "duration": "payload.timings.totalMs",
    "durationType": "msg",
    "durationUnit": "ms",
    "labels": [
      { "name": "service", "value": "payload.service", "valueType": "msg" },
      { "name": "operation", "value": "payload.operation", "valueType": "msg" },
      { "name": "outcome", "value": "payload.outcome", "valueType": "msg" }
    ],
    "x": 600,
    "y": 540,
    "wires": []
  },
  {
    "id": "metrics-prom-upstream-latency",
    "type": "nodered-metric",
    "z": "metrics-demo-tab",
    "name": "Prom: Upstream API latency",
    "metric": "metrics-prom-upstream-config",
    "operation": "observe",
    "autoStep": false,
    "step": "",
    "stepType": "str",
    "status": "success",
    "statusType": "str",
    "value": "1",
    "valueType": "num",
    "duration": "payload.durationMs",
    "durationType": "msg",
    "durationUnit": "ms",
    "labels": [
      { "name": "service", "value": "payload.service", "valueType": "msg" },
      { "name": "operation", "value": "payload.operation", "valueType": "msg" },
      { "name": "outcome", "value": "payload.outcome", "valueType": "msg" }
    ],
    "x": 600,
    "y": 580,
    "wires": []
  },
  {
    "id": "metrics-prom-exporter",
    "type": "nodered-metrics-exporter",
    "z": "metrics-demo-tab",
    "name": "Prometheus endpoint",
    "path": "/nodeRedMetrics",
    "x": 220,
    "y": 660,
    "wires": []
  },
  {
    "id": "metrics-prom-request-config",
    "type": "nodered-metric-config",
    "name": "Gateway completed requests",
    "metricType": "counter",
    "metricName": "nodered_gateway_requests_total",
    "help": "Completed requests handled by the central POD Gateway",
    "labelNames": "service,operation,outcome",
    "buckets": "",
    "withDuration": true,
    "prefix": "nodered_"
  },
  {
    "id": "metrics-prom-upstream-config",
    "type": "nodered-metric-config",
    "name": "Gateway upstream API latency",
    "metricType": "histogram",
    "metricName": "nodered_gateway_upstream_duration_seconds",
    "help": "External API request duration measured by the central POD Gateway",
    "labelNames": "service,operation,outcome",
    "buckets": "0.1,0.25,0.5,1,2,5,10,30,60",
    "withDuration": false,
    "prefix": "nodered_"
  }
]