{
  "name": "Log ISS Position to Firebase",
  "nodes": [
    {
      "name": "Cron",
      "type": "n8n-nodes-base.cron",
      "position": [
        550,
        300
      ],
      "parameters": {
        "triggerTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "log-iss-position-to-firebase-0"
    },
    {
      "name": "Prepare the current timestamp",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "mode": "runOnceForAllItems",
        "jsCode": "function query() {const timestamp=Math.floor(Date.now()/1000);return {timestamp,url:'https://api.wheretheiss.at/v1/satellites/25544/positions?timestamps='+timestamp};}\n\nreturn [{json:query()}];"
      },
      "id": "log-iss-position-to-firebase-1"
    },
    {
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        750,
        300
      ],
      "parameters": {
        "url": "={{ $json.url }}",
        "options": {}
      },
      "typeVersion": 1,
      "id": "log-iss-position-to-firebase-2"
    },
    {
      "name": "Validate the position",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "mode": "runOnceForAllItems",
        "jsCode": "function row({body,timestamp}) {\n if(!Array.isArray(body)||body.length!==1)throw Error('Expected one ISS position');const p=body[0];\n if(!p||p.id!==25544||typeof p.name!=='string'||!p.name||!Number.isFinite(p.latitude)||p.latitude < -90||p.latitude>90||!Number.isFinite(p.longitude)||p.longitude < -180||p.longitude>180||p.timestamp!==timestamp)throw Error('ISS position does not match the request');\n const position={name:p.name,latitude:p.latitude,longitude:p.longitude,timestamp:p.timestamp};return {position,rows:[{json:position}]};\n}\n\nconst p=row({body:$input.first().json,timestamp:$('Prepare the current timestamp').first().json.timestamp}).position;return [{json:{latitude:p.latitude,longitude:p.longitude,timestamp:p.timestamp}}];"
      },
      "id": "log-iss-position-to-firebase-3"
    },
    {
      "name": "Google Cloud Realtime Database",
      "type": "n8n-nodes-base.googleFirebaseRealtimeDatabase",
      "position": [
        1150,
        300
      ],
      "parameters": {
        "path": "iss",
        "operation": "push",
        "projectId": "YOUR_DATABASE_ID",
        "attributes": "latitude, longitude, timestamp"
      },
      "typeVersion": 1,
      "id": "log-iss-position-to-firebase-4"
    },
    {
      "name": "Confirm the push key",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "mode": "runOnceForAllItems",
        "jsCode": "function confirm({body}){if(!body||typeof body.name!=='string'||!body.name)throw Error('Firebase did not confirm the push key');return{key:body.name}}\n\nreturn [{json:confirm({body:$input.first().json})}];"
      },
      "id": "log-iss-position-to-firebase-5"
    }
  ],
  "active": false,
  "settings": {
    "timezone": "UTC"
  },
  "connections": {
    "Cron": {
      "main": [
        [
          {
            "node": "Prepare the current timestamp",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare the current timestamp": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "HTTP Request": {
      "main": [
        [
          {
            "node": "Validate the position",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Validate the position": {
      "main": [
        [
          {
            "node": "Google Cloud Realtime Database",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Cloud Realtime Database": {
      "main": [
        [
          {
            "node": "Confirm the push key",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "pinData": {}
}