{
  "kind": "open-flow-workflow",
  "version": 1,
  "name": "Track New ISS Position",
  "content": {
    "modelVersion": 14,
    "document": {
      "bindings": {},
      "graph": {
        "nodes": {
          "n_6a71a132414f7144": {
            "name": "Every minute",
            "kind": "cron",
            "cronTimes": [
              {
                "type": "cron",
                "expression": "* * * * *",
                "timezone": "UTC"
              }
            ]
          },
          "n_e0f8d937da6e332e": {
            "inputs": {},
            "name": "Prepare the current timestamp",
            "kind": "task",
            "task": {
              "inputs": [],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1
                  },
                  "nullable": false,
                  "handle": "url"
                },
                {
                  "jsonSchema": {
                    "type": "integer"
                  },
                  "nullable": false,
                  "handle": "timestamp"
                }
              ],
              "name": "Prepare the current timestamp",
              "moduleId": "n_10994798908bebda",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_d67542826ed6bfcf": {
            "inputs": {
              "url": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_e0f8d937da6e332e",
                    "output": "url"
                  }
                ]
              }
            },
            "name": "Read the ISS position",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "url"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {},
                  "nullable": true,
                  "handle": "body"
                },
                {
                  "jsonSchema": {
                    "type": "integer"
                  },
                  "nullable": false,
                  "handle": "statusCode"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": {
                      "type": "string"
                    }
                  },
                  "nullable": false,
                  "handle": "headers"
                }
              ],
              "name": "Read the ISS position",
              "executor": {
                "method": "GET",
                "query": {
                  "mode": "fields",
                  "names": []
                },
                "headers": {
                  "mode": "fields",
                  "names": []
                },
                "bodyFormat": "none",
                "authentication": {
                  "type": "none"
                },
                "responseFormat": "json",
                "statusPolicy": "success",
                "kind": "http-request"
              }
            }
          },
          "n_e03841616b1f9d39": {
            "inputs": {
              "body": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_d67542826ed6bfcf",
                    "output": "body"
                  }
                ]
              },
              "timestamp": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_e0f8d937da6e332e",
                    "output": "timestamp"
                  }
                ]
              }
            },
            "name": "Validate the position",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {},
                  "nullable": true,
                  "handle": "body"
                },
                {
                  "jsonSchema": {
                    "type": "integer"
                  },
                  "nullable": false,
                  "handle": "timestamp"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "position"
                },
                {
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "additionalProperties": true
                    }
                  },
                  "nullable": false,
                  "handle": "rows"
                }
              ],
              "name": "Validate the position",
              "moduleId": "n_a1877f13bd70fa19",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_515454fe4c862a2c": {
            "inputs": {
              "position": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_e03841616b1f9d39",
                    "output": "position"
                  }
                ]
              }
            },
            "name": "Keep only a new timestamp",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "position"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "result"
                }
              ],
              "name": "Keep only a new timestamp",
              "moduleId": "n_d940f4a5d7aff713",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_e8dbb6b0798c4095": {
            "name": "Position or no change",
            "kind": "outputs",
            "outputDefs": [
              {
                "jsonSchema": {
                  "type": "object",
                  "additionalProperties": true
                },
                "nullable": false,
                "handle": "result"
              }
            ],
            "outputMappings": {
              "result": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_515454fe4c862a2c",
                    "output": "result"
                  }
                ]
              }
            }
          }
        },
        "edges": [
          {
            "source": "n_6a71a132414f7144",
            "target": "n_e0f8d937da6e332e"
          },
          {
            "source": "n_e0f8d937da6e332e",
            "target": "n_d67542826ed6bfcf"
          },
          {
            "source": "n_d67542826ed6bfcf",
            "target": "n_e03841616b1f9d39"
          },
          {
            "source": "n_e03841616b1f9d39",
            "target": "n_515454fe4c862a2c"
          },
          {
            "source": "n_515454fe4c862a2c",
            "target": "n_e8dbb6b0798c4095"
          }
        ]
      }
    },
    "modules": {
      "n_10994798908bebda": {
        "name": "Prepare the current timestamp",
        "imports": [],
        "source": "export default function query() {const timestamp=Math.floor(Date.now()/1000);return {timestamp,url:'https://api.wheretheiss.at/v1/satellites/25544/positions?timestamps='+timestamp};}\n"
      },
      "n_a1877f13bd70fa19": {
        "name": "Validate the position",
        "imports": [],
        "source": "export default 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"
      },
      "n_d940f4a5d7aff713": {
        "name": "Keep only a new timestamp",
        "imports": [],
        "source": "export default async function dedup({position},context){const p=position;if(!p||!Number.isSafeInteger(p.timestamp))throw Error('Invalid position');const prior=await context.state.get('last-iss-timestamps');if(prior!==null&&!Array.isArray(prior))throw Error('Invalid saved timestamps');const duplicate=prior?.includes(p.timestamp)??false;await context.state.set('last-iss-timestamps',[p.timestamp]);return{result:duplicate?{message:'No new items'}:{timestamp:p.timestamp,latitude:p.latitude,longitude:p.longitude}}}\n"
      }
    }
  },
  "presentation": {
    "designer": {
      "version": 1,
      "flow": {
        "direction": "vertical"
      }
    }
  }
}