{
  "kind": "open-flow-workflow",
  "version": 1,
  "name": "Monitor Website Status in Google Sheets",
  "content": {
    "modelVersion": 14,
    "document": {
      "bindings": {},
      "graph": {
        "nodes": {
          "n_6ad3cf5e6a9950a7": {
            "name": "Every six hours UTC",
            "kind": "cron",
            "cronTimes": [
              {
                "type": "cron",
                "expression": "0 */6 * * *",
                "timezone": "UTC"
              }
            ]
          },
          "n_4ac37d62f70c9c8d": {
            "inputs": {
              "spreadsheetId": {
                "kind": "value",
                "value": "YOUR_SPREADSHEET_ID"
              },
              "range": {
                "kind": "value",
                "value": "'dashboard'!A:Z"
              },
              "majorDimension": {
                "kind": "value",
                "value": "ROWS"
              },
              "valueRenderOption": {
                "kind": "value",
                "value": "UNFORMATTED_VALUE"
              }
            },
            "name": "Read the site dashboard",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "description": "The spreadsheet ID.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The spreadsheet ID."
                  },
                  "nullable": true,
                  "handle": "spreadsheetId",
                  "value": null
                },
                {
                  "description": "The A1 notation of the range to retrieve.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The A1 notation of the range to retrieve."
                  },
                  "nullable": false,
                  "handle": "range"
                },
                {
                  "description": "The major dimension for the returned values.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "DIMENSION_UNSPECIFIED",
                      "ROWS",
                      "COLUMNS"
                    ],
                    "description": "The major dimension for the returned values."
                  },
                  "nullable": true,
                  "handle": "majorDimension",
                  "value": null
                },
                {
                  "description": "How values should be rendered in the output.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "FORMATTED_VALUE",
                      "UNFORMATTED_VALUE",
                      "FORMULA"
                    ],
                    "description": "How values should be rendered in the output."
                  },
                  "nullable": true,
                  "handle": "valueRenderOption",
                  "value": null
                },
                {
                  "description": "How dates and times should be rendered in the output.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "SERIAL_NUMBER",
                      "FORMATTED_STRING"
                    ],
                    "description": "How dates and times should be rendered in the output."
                  },
                  "nullable": true,
                  "handle": "dateTimeRenderOption",
                  "value": null
                }
              ],
              "outputs": [
                {
                  "description": "The A1 notation of the range.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The A1 notation of the range."
                  },
                  "nullable": false,
                  "handle": "range"
                },
                {
                  "description": "The major dimension of the values (ROWS or COLUMNS).",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The major dimension of the values (ROWS or COLUMNS)."
                  },
                  "nullable": false,
                  "handle": "majorDimension"
                },
                {
                  "description": "The data values in the range.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {
                        "anyOf": [
                          {
                            "type": "string",
                            "description": "A union variant."
                          },
                          {
                            "type": "number",
                            "description": "A union variant."
                          },
                          {
                            "type": "boolean",
                            "description": "A union variant."
                          },
                          {
                            "const": null,
                            "description": "A union variant."
                          }
                        ],
                        "description": "The cell value schema."
                      },
                      "description": "An array item."
                    },
                    "description": "The data values in the range."
                  },
                  "nullable": false,
                  "handle": "values"
                }
              ],
              "name": "Read the site dashboard",
              "executor": {
                "kind": "connector",
                "action": "googlesheets.values_get"
              }
            }
          },
          "n_1b026de286085ad5": {
            "inputs": {
              "values": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_4ac37d62f70c9c8d",
                    "output": "values"
                  }
                ]
              },
              "previousState": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_1b026de286085ad5",
                    "output": "state"
                  }
                ]
              }
            },
            "name": "Prepare the next site",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {
                        "anyOf": [
                          {
                            "type": "string",
                            "description": "A union variant."
                          },
                          {
                            "type": "number",
                            "description": "A union variant."
                          },
                          {
                            "type": "boolean",
                            "description": "A union variant."
                          },
                          {
                            "const": null,
                            "description": "A union variant."
                          }
                        ],
                        "description": "The cell value schema."
                      },
                      "description": "An array item."
                    },
                    "description": "The data values in the range."
                  },
                  "nullable": false,
                  "handle": "values"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": true,
                  "handle": "previousState"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "state"
                },
                {
                  "jsonSchema": {
                    "type": "boolean"
                  },
                  "nullable": false,
                  "handle": "more"
                },
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "url"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "site"
                },
                {
                  "jsonSchema": {
                    "type": "integer",
                    "minimum": 0
                  },
                  "nullable": false,
                  "handle": "count"
                }
              ],
              "name": "Prepare the next site",
              "moduleId": "n_27b453182f57b95e",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_b1a94e2f91873b4b": {
            "inputs": {},
            "name": "More sites?",
            "kind": "condition",
            "matchMode": "first",
            "cases": [
              {
                "output": "check",
                "groups": [
                  {
                    "expressions": [
                      {
                        "left": {
                          "kind": "source",
                          "source": {
                            "kind": "node",
                            "nodeId": "n_1b026de286085ad5",
                            "output": "more"
                          }
                        },
                        "operator": "isTrue"
                      }
                    ]
                  }
                ]
              }
            ]
          },
          "n_b7ef2f1bffa7a6b2": {
            "inputs": {
              "initialUrl": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_1b026de286085ad5",
                    "output": "url"
                  }
                ]
              },
              "index": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_1b026de286085ad5",
                    "output": "count"
                  }
                ]
              },
              "previousState": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_835b0e1f95aa203f",
                    "output": "state"
                  }
                ]
              }
            },
            "name": "Prepare the HTTP target",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "initialUrl"
                },
                {
                  "jsonSchema": {
                    "type": "integer",
                    "minimum": 0
                  },
                  "nullable": false,
                  "handle": "index"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": true,
                  "handle": "previousState"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "url"
                }
              ],
              "name": "Prepare the HTTP target",
              "moduleId": "n_896cf2f8b18d924f",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_86d45065e9c5de01": {
            "inputs": {
              "url": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_b7ef2f1bffa7a6b2",
                    "output": "url"
                  }
                ]
              }
            },
            "name": "Check the website",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "url"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": true,
                  "handle": "body"
                },
                {
                  "jsonSchema": {
                    "type": "integer"
                  },
                  "nullable": false,
                  "handle": "statusCode"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": {
                      "type": "string"
                    }
                  },
                  "nullable": false,
                  "handle": "headers"
                }
              ],
              "name": "Check the website",
              "executor": {
                "method": "GET",
                "query": {
                  "mode": "fields",
                  "names": []
                },
                "headers": {
                  "mode": "fields",
                  "names": []
                },
                "bodyFormat": "none",
                "authentication": {
                  "type": "none"
                },
                "responseFormat": "text",
                "statusPolicy": "all",
                "kind": "http-request"
              }
            }
          },
          "n_835b0e1f95aa203f": {
            "inputs": {
              "url": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_b7ef2f1bffa7a6b2",
                    "output": "url"
                  }
                ]
              },
              "index": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_1b026de286085ad5",
                    "output": "count"
                  }
                ]
              },
              "status": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_86d45065e9c5de01",
                    "output": "statusCode"
                  }
                ]
              },
              "headers": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_86d45065e9c5de01",
                    "output": "headers"
                  }
                ]
              },
              "previousState": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_835b0e1f95aa203f",
                    "output": "state"
                  }
                ]
              }
            },
            "name": "Evaluate the HTTP response",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "url"
                },
                {
                  "jsonSchema": {
                    "type": "integer",
                    "minimum": 0
                  },
                  "nullable": false,
                  "handle": "index"
                },
                {
                  "jsonSchema": {
                    "type": "integer"
                  },
                  "nullable": false,
                  "handle": "status"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": {
                      "type": "string"
                    }
                  },
                  "nullable": false,
                  "handle": "headers"
                },
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": true,
                  "handle": "previousState"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "state"
                },
                {
                  "jsonSchema": {
                    "type": "boolean"
                  },
                  "nullable": false,
                  "handle": "redirect"
                },
                {
                  "jsonSchema": {
                    "type": "boolean"
                  },
                  "nullable": false,
                  "handle": "up"
                }
              ],
              "name": "Evaluate the HTTP response",
              "moduleId": "n_f56b01b1985caa2b",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_5e6b93a05614bc54": {
            "inputs": {},
            "name": "Follow a redirect?",
            "kind": "condition",
            "matchMode": "first",
            "cases": [
              {
                "output": "follow",
                "groups": [
                  {
                    "expressions": [
                      {
                        "left": {
                          "kind": "source",
                          "source": {
                            "kind": "node",
                            "nodeId": "n_835b0e1f95aa203f",
                            "output": "redirect"
                          }
                        },
                        "operator": "isTrue"
                      }
                    ]
                  }
                ]
              }
            ]
          },
          "n_af9f9701bb2c2abf": {
            "inputs": {
              "site": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_1b026de286085ad5",
                    "output": "site"
                  }
                ]
              },
              "up": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_835b0e1f95aa203f",
                    "output": "up"
                  }
                ]
              },
              "now": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_6ad3cf5e6a9950a7",
                    "output": "scheduledAt"
                  }
                ]
              }
            },
            "name": "Prepare the observation",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "object",
                    "additionalProperties": true
                  },
                  "nullable": false,
                  "handle": "site"
                },
                {
                  "jsonSchema": {
                    "type": "boolean"
                  },
                  "nullable": false,
                  "handle": "up"
                },
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "now"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The A1 notation of the range to append values after."
                  },
                  "nullable": false,
                  "handle": "logRange"
                },
                {
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {
                        "anyOf": [
                          {
                            "type": "string",
                            "description": "A union variant."
                          },
                          {
                            "type": "number",
                            "description": "A union variant."
                          },
                          {
                            "type": "boolean",
                            "description": "A union variant."
                          },
                          {
                            "const": null,
                            "description": "A union variant."
                          }
                        ],
                        "description": "The cell value schema."
                      },
                      "description": "An array item."
                    },
                    "description": "The data to append."
                  },
                  "nullable": false,
                  "handle": "logValues"
                },
                {
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The A1 notation of the range to write to."
                  },
                  "nullable": false,
                  "handle": "statusRange"
                },
                {
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {
                        "anyOf": [
                          {
                            "type": "string",
                            "description": "A union variant."
                          },
                          {
                            "type": "number",
                            "description": "A union variant."
                          },
                          {
                            "type": "boolean",
                            "description": "A union variant."
                          },
                          {
                            "const": null,
                            "description": "A union variant."
                          }
                        ],
                        "description": "The cell value schema."
                      },
                      "description": "An array item."
                    },
                    "description": "The data to write into the range."
                  },
                  "nullable": false,
                  "handle": "statusValues"
                },
                {
                  "jsonSchema": {
                    "type": "boolean"
                  },
                  "nullable": false,
                  "handle": "alert"
                },
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "subject"
                },
                {
                  "jsonSchema": {
                    "type": "string"
                  },
                  "nullable": false,
                  "handle": "message"
                }
              ],
              "name": "Prepare the observation",
              "moduleId": "n_91f4e6ae38684ff2",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_9ca6b72783077849": {
            "inputs": {},
            "name": "Send an alert?",
            "kind": "condition",
            "matchMode": "first",
            "cases": [
              {
                "output": "send",
                "groups": [
                  {
                    "expressions": [
                      {
                        "left": {
                          "kind": "source",
                          "source": {
                            "kind": "node",
                            "nodeId": "n_af9f9701bb2c2abf",
                            "output": "alert"
                          }
                        },
                        "operator": "isTrue"
                      }
                    ]
                  }
                ]
              }
            ]
          },
          "n_27868329af14bf91": {
            "inputs": {
              "to": {
                "kind": "value",
                "value": "YOUR_ALERT_EMAIL"
              },
              "subject": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "subject"
                  }
                ]
              },
              "body": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "message"
                  }
                ]
              },
              "isHtml": {
                "kind": "value",
                "value": false
              }
            },
            "name": "Email the alert",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "description": "Primary recipient email address.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Primary recipient email address."
                  },
                  "nullable": true,
                  "handle": "to",
                  "value": null
                },
                {
                  "description": "Additional To recipients.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "string",
                      "description": "An array item."
                    },
                    "description": "Additional To recipients."
                  },
                  "nullable": true,
                  "handle": "extraRecipients",
                  "value": null
                },
                {
                  "description": "Cc recipients.",
                  "jsonSchema": {
                    "anyOf": [
                      {
                        "type": "string",
                        "description": "A union variant."
                      },
                      {
                        "type": "array",
                        "items": {
                          "type": "string",
                          "description": "An array item."
                        },
                        "description": "A union variant."
                      }
                    ],
                    "description": "Cc recipients."
                  },
                  "nullable": true,
                  "handle": "cc",
                  "value": null
                },
                {
                  "description": "Bcc recipients.",
                  "jsonSchema": {
                    "anyOf": [
                      {
                        "type": "string",
                        "description": "A union variant."
                      },
                      {
                        "type": "array",
                        "items": {
                          "type": "string",
                          "description": "An array item."
                        },
                        "description": "A union variant."
                      }
                    ],
                    "description": "Bcc recipients."
                  },
                  "nullable": true,
                  "handle": "bcc",
                  "value": null
                },
                {
                  "description": "Email subject line.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Email subject line."
                  },
                  "nullable": true,
                  "handle": "subject",
                  "value": null
                },
                {
                  "description": "Email body content.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Email body content."
                  },
                  "nullable": true,
                  "handle": "body",
                  "value": null
                },
                {
                  "description": "Set to true when the body content is already HTML.",
                  "jsonSchema": {
                    "type": "boolean",
                    "description": "Set to true when the body content is already HTML."
                  },
                  "nullable": true,
                  "handle": "isHtml",
                  "value": null
                },
                {
                  "description": "Attachments and CID inline images. Up to 25,000,000 decoded bytes in total and 35,000,000 MIME bytes.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {
                        "filename": {
                          "type": "string",
                          "description": "Attachment filename; omit for an unnamed attachment."
                        },
                        "mimeType": {
                          "type": "string",
                          "description": "MIME type without parameters; defaults to application/octet-stream."
                        },
                        "contentBase64": {
                          "type": "string",
                          "description": "Standard padded Base64 content. Empty string represents a zero-byte file. Supply this or fileUrl."
                        },
                        "fileUrl": {
                          "type": "string",
                          "format": "uri",
                          "description": "Public URL to download the attachment. Supply this or contentBase64."
                        },
                        "contentId": {
                          "type": "string",
                          "minLength": 1,
                          "description": "Bare Content-ID without cid: or angle brackets; reference it as cid:<contentId> in HTML."
                        },
                        "disposition": {
                          "type": "string",
                          "enum": [
                            "inline",
                            "attachment"
                          ],
                          "description": "Defaults to inline when contentId is set, otherwise attachment. Inline requires contentId."
                        }
                      },
                      "additionalProperties": false,
                      "description": "An attachment or CID inline resource.",
                      "oneOf": [
                        {
                          "required": [
                            "contentBase64"
                          ]
                        },
                        {
                          "required": [
                            "fileUrl"
                          ]
                        }
                      ]
                    },
                    "maxItems": 100,
                    "description": "Attachments and CID inline images. Up to 25,000,000 decoded bytes in total and 35,000,000 MIME bytes."
                  },
                  "nullable": true,
                  "handle": "attachments",
                  "value": null
                },
                {
                  "description": "Verified Gmail send-as alias to use in the From header.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Verified Gmail send-as alias to use in the From header."
                  },
                  "nullable": true,
                  "handle": "fromEmail",
                  "value": null
                }
              ],
              "outputs": [
                {
                  "description": "Gmail message ID.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Gmail message ID."
                  },
                  "nullable": false,
                  "handle": "messageId"
                },
                {
                  "description": "Gmail thread ID.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Gmail thread ID."
                  },
                  "nullable": true,
                  "handle": "threadId"
                }
              ],
              "name": "Email the alert",
              "executor": {
                "kind": "connector",
                "action": "gmail.send_email"
              }
            }
          },
          "n_b627912fc1c22ac0": {
            "inputs": {
              "channelId": {
                "kind": "value",
                "value": "YOUR_SLACK_CHANNEL_ID"
              },
              "text": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "message"
                  }
                ]
              }
            },
            "name": "Send the Slack alert",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "description": "The Slack conversation or channel ID.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The Slack conversation or channel ID."
                  },
                  "nullable": false,
                  "handle": "channelId"
                },
                {
                  "description": "Plain text message content. When blocks are provided, Slack uses this as notification and accessibility fallback text.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "Plain text message content. When blocks are provided, Slack uses this as notification and accessibility fallback text."
                  },
                  "nullable": true,
                  "handle": "text",
                  "value": null
                },
                {
                  "description": "Slack Block Kit blocks to render in the message.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {},
                      "additionalProperties": true,
                      "description": "A Slack Block Kit block object. Pass the block exactly as Slack documents it."
                    },
                    "minItems": 1,
                    "description": "Slack Block Kit blocks to render in the message."
                  },
                  "nullable": true,
                  "handle": "blocks",
                  "value": null
                },
                {
                  "description": "Slack legacy attachments to include in the message.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {},
                      "additionalProperties": true,
                      "description": "A Slack legacy attachment object. Prefer blocks for new messages when possible."
                    },
                    "minItems": 1,
                    "description": "Slack legacy attachments to include in the message."
                  },
                  "nullable": true,
                  "handle": "attachments",
                  "value": null
                },
                {
                  "description": "Whether Slack should unfurl links in the message.",
                  "jsonSchema": {
                    "type": "boolean",
                    "description": "Whether Slack should unfurl links in the message."
                  },
                  "nullable": true,
                  "handle": "unfurlLinks",
                  "value": null
                },
                {
                  "description": "Whether Slack should unfurl media in the message.",
                  "jsonSchema": {
                    "type": "boolean",
                    "description": "Whether Slack should unfurl media in the message."
                  },
                  "nullable": true,
                  "handle": "unfurlMedia",
                  "value": null
                },
                {
                  "description": "Slack message metadata to attach to the message.",
                  "jsonSchema": {
                    "type": "object",
                    "properties": {},
                    "additionalProperties": true,
                    "description": "Slack message metadata to attach to the message."
                  },
                  "nullable": true,
                  "handle": "metadata",
                  "value": null
                }
              ],
              "outputs": [
                {
                  "description": "The timestamp identifier of the posted message.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The timestamp identifier of the posted message."
                  },
                  "nullable": false,
                  "handle": "ts"
                },
                {
                  "description": "The channel ID where the message was posted.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The channel ID where the message was posted."
                  },
                  "nullable": false,
                  "handle": "channelId"
                }
              ],
              "name": "Send the Slack alert",
              "executor": {
                "kind": "connector",
                "action": "slack.post_message"
              }
            }
          },
          "n_4ff34871b9d9f99a": {
            "inputs": {
              "spreadsheetId": {
                "kind": "value",
                "value": "YOUR_SPREADSHEET_ID"
              },
              "range": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "logRange"
                  }
                ]
              },
              "values": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "logValues"
                  }
                ]
              },
              "valueInputOption": {
                "kind": "value",
                "value": "RAW"
              },
              "insertDataOption": {
                "kind": "value",
                "value": "INSERT_ROWS"
              }
            },
            "name": "Log the observation",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "description": "The spreadsheet ID.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The spreadsheet ID."
                  },
                  "nullable": true,
                  "handle": "spreadsheetId",
                  "value": null
                },
                {
                  "description": "The A1 notation of the range to append values after.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The A1 notation of the range to append values after."
                  },
                  "nullable": false,
                  "handle": "range"
                },
                {
                  "description": "The data to append.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {
                        "anyOf": [
                          {
                            "type": "string",
                            "description": "A union variant."
                          },
                          {
                            "type": "number",
                            "description": "A union variant."
                          },
                          {
                            "type": "boolean",
                            "description": "A union variant."
                          },
                          {
                            "const": null,
                            "description": "A union variant."
                          }
                        ],
                        "description": "The cell value schema."
                      },
                      "description": "An array item."
                    },
                    "description": "The data to append."
                  },
                  "nullable": false,
                  "handle": "values"
                },
                {
                  "description": "The major dimension of the values array.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "ROWS",
                      "COLUMNS"
                    ],
                    "description": "The major dimension of the values array."
                  },
                  "nullable": true,
                  "handle": "majorDimension",
                  "value": null
                },
                {
                  "description": "How the data should be inserted.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "OVERWRITE",
                      "INSERT_ROWS"
                    ],
                    "description": "How the data should be inserted."
                  },
                  "nullable": true,
                  "handle": "insertDataOption",
                  "value": null
                },
                {
                  "description": "How the input data should be interpreted.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "RAW",
                      "USER_ENTERED"
                    ],
                    "description": "How the input data should be interpreted."
                  },
                  "nullable": true,
                  "handle": "valueInputOption",
                  "value": null
                },
                {
                  "description": "Whether to include the appended values in the response.",
                  "jsonSchema": {
                    "type": "boolean",
                    "description": "Whether to include the appended values in the response."
                  },
                  "nullable": true,
                  "handle": "includeValuesInResponse",
                  "value": null
                },
                {
                  "description": "How values in the response should be rendered.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "FORMATTED_VALUE",
                      "UNFORMATTED_VALUE",
                      "FORMULA"
                    ],
                    "description": "How values in the response should be rendered."
                  },
                  "nullable": true,
                  "handle": "responseValueRenderOption",
                  "value": null
                },
                {
                  "description": "How dates in the response should be rendered.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "SERIAL_NUMBER",
                      "FORMATTED_STRING"
                    ],
                    "description": "How dates in the response should be rendered."
                  },
                  "nullable": true,
                  "handle": "responseDateTimeRenderOption",
                  "value": null
                }
              ],
              "outputs": [
                {
                  "description": "The unique ID of the spreadsheet.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The unique ID of the spreadsheet."
                  },
                  "nullable": false,
                  "handle": "spreadsheetId"
                },
                {
                  "description": "The A1 notation of the range that was updated.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The A1 notation of the range that was updated."
                  },
                  "nullable": false,
                  "handle": "updatedRange"
                },
                {
                  "description": "The number of rows that were updated.",
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of rows that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedRows"
                },
                {
                  "description": "The number of columns that were updated.",
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of columns that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedColumns"
                },
                {
                  "description": "The number of cells that were updated.",
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of cells that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedCells"
                },
                {
                  "description": "The values of the cells after the update.",
                  "jsonSchema": {
                    "type": "object",
                    "properties": {
                      "range": {
                        "type": "string",
                        "description": "The A1 notation of the range."
                      },
                      "majorDimension": {
                        "type": "string",
                        "description": "The major dimension of the values (ROWS or COLUMNS)."
                      },
                      "values": {
                        "type": "array",
                        "items": {
                          "type": "array",
                          "items": {
                            "anyOf": [
                              {
                                "type": "string",
                                "description": "A union variant."
                              },
                              {
                                "type": "number",
                                "description": "A union variant."
                              },
                              {
                                "type": "boolean",
                                "description": "A union variant."
                              },
                              {
                                "const": null,
                                "description": "A union variant."
                              }
                            ],
                            "description": "The cell value schema."
                          },
                          "description": "An array item."
                        },
                        "description": "The data values in the range."
                      }
                    },
                    "required": [
                      "range",
                      "majorDimension",
                      "values"
                    ],
                    "additionalProperties": false,
                    "description": "The values of the cells after the update."
                  },
                  "nullable": true,
                  "handle": "updatedData"
                },
                {
                  "description": "The A1 notation of the table range that data was appended to.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The A1 notation of the table range that data was appended to."
                  },
                  "nullable": false,
                  "handle": "tableRange"
                }
              ],
              "name": "Log the observation",
              "executor": {
                "kind": "connector",
                "action": "googlesheets.spreadsheets_values_append"
              }
            }
          },
          "n_53513590bde06393": {
            "inputs": {
              "spreadsheetId": {
                "kind": "value",
                "value": "YOUR_SPREADSHEET_ID"
              },
              "range": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "statusRange"
                  }
                ]
              },
              "values": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_af9f9701bb2c2abf",
                    "output": "statusValues"
                  }
                ]
              },
              "valueInputOption": {
                "kind": "value",
                "value": "RAW"
              }
            },
            "name": "Update the site status",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "description": "The spreadsheet ID.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The spreadsheet ID."
                  },
                  "nullable": true,
                  "handle": "spreadsheetId",
                  "value": null
                },
                {
                  "description": "The A1 notation of the range to write to.",
                  "jsonSchema": {
                    "type": "string",
                    "minLength": 1,
                    "description": "The A1 notation of the range to write to."
                  },
                  "nullable": false,
                  "handle": "range"
                },
                {
                  "description": "The data to write into the range.",
                  "jsonSchema": {
                    "type": "array",
                    "items": {
                      "type": "array",
                      "items": {
                        "anyOf": [
                          {
                            "type": "string",
                            "description": "A union variant."
                          },
                          {
                            "type": "number",
                            "description": "A union variant."
                          },
                          {
                            "type": "boolean",
                            "description": "A union variant."
                          },
                          {
                            "const": null,
                            "description": "A union variant."
                          }
                        ],
                        "description": "The cell value schema."
                      },
                      "description": "An array item."
                    },
                    "description": "The data to write into the range."
                  },
                  "nullable": false,
                  "handle": "values"
                },
                {
                  "description": "The major dimension of the values array.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "ROWS",
                      "COLUMNS"
                    ],
                    "description": "The major dimension of the values array."
                  },
                  "nullable": true,
                  "handle": "majorDimension",
                  "value": null
                },
                {
                  "description": "How the input data should be interpreted.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "RAW",
                      "USER_ENTERED"
                    ],
                    "description": "How the input data should be interpreted."
                  },
                  "nullable": true,
                  "handle": "valueInputOption",
                  "value": null
                },
                {
                  "description": "Whether to include the written values in the response.",
                  "jsonSchema": {
                    "type": "boolean",
                    "description": "Whether to include the written values in the response."
                  },
                  "nullable": true,
                  "handle": "includeValuesInResponse",
                  "value": null
                },
                {
                  "description": "How values in the response should be rendered.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "FORMATTED_VALUE",
                      "UNFORMATTED_VALUE",
                      "FORMULA"
                    ],
                    "description": "How values in the response should be rendered."
                  },
                  "nullable": true,
                  "handle": "responseValueRenderOption",
                  "value": null
                },
                {
                  "description": "How dates in the response should be rendered.",
                  "jsonSchema": {
                    "type": "string",
                    "enum": [
                      "SERIAL_NUMBER",
                      "FORMATTED_STRING"
                    ],
                    "description": "How dates in the response should be rendered."
                  },
                  "nullable": true,
                  "handle": "responseDateTimeRenderOption",
                  "value": null
                },
                {
                  "description": "Whether to auto-expand the sheet to fit the written data.",
                  "jsonSchema": {
                    "type": "boolean",
                    "description": "Whether to auto-expand the sheet to fit the written data."
                  },
                  "nullable": true,
                  "handle": "autoExpandSheet",
                  "value": null
                }
              ],
              "outputs": [
                {
                  "description": "The unique ID of the spreadsheet.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The unique ID of the spreadsheet."
                  },
                  "nullable": false,
                  "handle": "spreadsheetId"
                },
                {
                  "description": "The A1 notation of the range that was updated.",
                  "jsonSchema": {
                    "type": "string",
                    "description": "The A1 notation of the range that was updated."
                  },
                  "nullable": false,
                  "handle": "updatedRange"
                },
                {
                  "description": "The number of rows that were updated.",
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of rows that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedRows"
                },
                {
                  "description": "The number of columns that were updated.",
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of columns that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedColumns"
                },
                {
                  "description": "The number of cells that were updated.",
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of cells that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedCells"
                },
                {
                  "description": "The values of the cells after the update.",
                  "jsonSchema": {
                    "type": "object",
                    "properties": {
                      "range": {
                        "type": "string",
                        "description": "The A1 notation of the range."
                      },
                      "majorDimension": {
                        "type": "string",
                        "description": "The major dimension of the values (ROWS or COLUMNS)."
                      },
                      "values": {
                        "type": "array",
                        "items": {
                          "type": "array",
                          "items": {
                            "anyOf": [
                              {
                                "type": "string",
                                "description": "A union variant."
                              },
                              {
                                "type": "number",
                                "description": "A union variant."
                              },
                              {
                                "type": "boolean",
                                "description": "A union variant."
                              },
                              {
                                "const": null,
                                "description": "A union variant."
                              }
                            ],
                            "description": "The cell value schema."
                          },
                          "description": "An array item."
                        },
                        "description": "The data values in the range."
                      }
                    },
                    "required": [
                      "range",
                      "majorDimension",
                      "values"
                    ],
                    "additionalProperties": false,
                    "description": "The values of the cells after the update."
                  },
                  "nullable": true,
                  "handle": "updatedData"
                }
              ],
              "name": "Update the site status",
              "executor": {
                "kind": "connector",
                "action": "googlesheets.values_update"
              }
            }
          },
          "n_c08c56a2895d4544": {
            "inputs": {
              "updatedCells": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_53513590bde06393",
                    "output": "updatedCells"
                  }
                ]
              }
            },
            "name": "Confirm the status update",
            "kind": "task",
            "task": {
              "inputs": [
                {
                  "jsonSchema": {
                    "type": "integer",
                    "description": "The number of cells that were updated."
                  },
                  "nullable": false,
                  "handle": "updatedCells"
                }
              ],
              "outputs": [
                {
                  "jsonSchema": {
                    "type": "boolean"
                  },
                  "nullable": false,
                  "handle": "ok"
                }
              ],
              "name": "Confirm the status update",
              "moduleId": "n_50282b1b7045f278",
              "capabilities": [
                {
                  "kind": "connector",
                  "mode": "independent",
                  "actions": []
                }
              ]
            }
          },
          "n_0d6bb56b132bd45e": {
            "name": "Complete",
            "kind": "outputs",
            "outputDefs": [
              {
                "jsonSchema": {
                  "type": "integer",
                  "minimum": 0
                },
                "nullable": false,
                "handle": "count"
              }
            ],
            "outputMappings": {
              "count": {
                "kind": "sources",
                "sources": [
                  {
                    "kind": "node",
                    "nodeId": "n_1b026de286085ad5",
                    "output": "count"
                  }
                ]
              }
            }
          }
        },
        "edges": [
          {
            "source": "n_6ad3cf5e6a9950a7",
            "target": "n_4ac37d62f70c9c8d"
          },
          {
            "source": "n_4ac37d62f70c9c8d",
            "target": "n_1b026de286085ad5"
          },
          {
            "source": "n_1b026de286085ad5",
            "target": "n_b1a94e2f91873b4b"
          },
          {
            "source": "n_b1a94e2f91873b4b",
            "target": "n_b7ef2f1bffa7a6b2",
            "sourceHandle": "check"
          },
          {
            "source": "n_b7ef2f1bffa7a6b2",
            "target": "n_86d45065e9c5de01"
          },
          {
            "source": "n_86d45065e9c5de01",
            "target": "n_835b0e1f95aa203f"
          },
          {
            "source": "n_835b0e1f95aa203f",
            "target": "n_5e6b93a05614bc54"
          },
          {
            "source": "n_5e6b93a05614bc54",
            "target": "n_b7ef2f1bffa7a6b2",
            "sourceHandle": "follow"
          },
          {
            "source": "n_5e6b93a05614bc54",
            "target": "n_af9f9701bb2c2abf",
            "sourceHandle": "otherwise"
          },
          {
            "source": "n_af9f9701bb2c2abf",
            "target": "n_9ca6b72783077849"
          },
          {
            "source": "n_9ca6b72783077849",
            "target": "n_27868329af14bf91",
            "sourceHandle": "send"
          },
          {
            "source": "n_27868329af14bf91",
            "target": "n_b627912fc1c22ac0"
          },
          {
            "source": "n_b627912fc1c22ac0",
            "target": "n_4ff34871b9d9f99a"
          },
          {
            "source": "n_9ca6b72783077849",
            "target": "n_4ff34871b9d9f99a",
            "sourceHandle": "otherwise"
          },
          {
            "source": "n_4ff34871b9d9f99a",
            "target": "n_53513590bde06393"
          },
          {
            "source": "n_53513590bde06393",
            "target": "n_c08c56a2895d4544"
          },
          {
            "source": "n_c08c56a2895d4544",
            "target": "n_1b026de286085ad5"
          },
          {
            "source": "n_b1a94e2f91873b4b",
            "target": "n_0d6bb56b132bd45e",
            "sourceHandle": "otherwise"
          }
        ]
      }
    },
    "modules": {
      "n_27b453182f57b95e": {
        "name": "Prepare the next site",
        "imports": [],
        "source": "export default function nextDashboard({values,previousState}) {\n if(!Array.isArray(values))throw Error('Invalid dashboard');\n const index=previousState?.index??0;if(!Number.isInteger(index)||index<0)throw Error('Invalid index');\n if(!values.length)return{state:{index},more:false,url:'https://unused.invalid',site:{},count:index};\n const head=values[0];if(!Array.isArray(head)||['Property','Status','Log Sheet'].some(x=>head.filter(v=>v===x).length!==1))throw Error('Dashboard requires unique Property, Status and Log Sheet headers');\n const p=head.indexOf('Property'),s=head.indexOf('Status'),l=head.indexOf('Log Sheet');const rows=values.slice(1).map((v,i)=>({v,row:i+2})).filter(x=>Array.isArray(x.v)&&x.v.some(y=>y!==''&&y!=null));const seen=new Set();\n for(const {v} of rows){if(typeof v[p]!=='string'||!/^https?:\\/\\//i.test(v[p])||/[\\r\\n]/.test(v[p])||seen.has(v[p]))throw Error('Invalid or duplicate Property');seen.add(v[p]);if(!['UP','DOWN'].includes(v[s]))throw Error('Invalid Status');if(typeof v[l]!=='string'||!v[l].trim()||/[\\[\\]*?:/\\\\]/.test(v[l]))throw Error('Invalid Log Sheet');}\n if(index>=rows.length)return{state:{index},more:false,url:'https://unused.invalid',site:{},count:index};const x=rows[index];return{state:{index:index+1},more:true,url:x.v[p],site:{property:x.v[p],status:x.v[s],logSheet:x.v[l],row:x.row,statusColumn:s},count:index+1};\n}\n"
      },
      "n_896cf2f8b18d924f": {
        "name": "Prepare the HTTP target",
        "imports": [],
        "source": "export default function serverHop({initialUrl,index,previousState}) {\n return {url:previousState?.index===index&&previousState?.nextUrl?previousState.nextUrl:initialUrl};\n}\n"
      },
      "n_f56b01b1985caa2b": {
        "name": "Evaluate the HTTP response",
        "imports": [],
        "source": "export default function assessDashboard({url,index,status,headers,previousState}) {\n const prior=previousState?.index===index?previousState.hops:0;if(!Number.isInteger(prior)||prior<0)throw Error('Invalid redirect state');\n if(Number.isInteger(status)&&status>=300&&status<400&&typeof headers?.location==='string'&&headers.location){if(prior>=21)throw Error('Redirect limit exceeded');let target;try{target=new URL(headers.location,url)}catch{throw Error('Invalid redirect URL')}if(!['http:','https:'].includes(target.protocol)||target.username||target.password)throw Error('Invalid redirect URL');return{state:{index,hops:prior+1,nextUrl:target.toString()},redirect:true,up:false};}\n if(!Number.isInteger(status)||status<100||status>599)throw Error('Invalid HTTP status');return{state:{index,hops:prior,nextUrl:''},redirect:false,up:status<400};\n}\n"
      },
      "n_91f4e6ae38684ff2": {
        "name": "Prepare the observation",
        "imports": [],
        "source": "export default function dashboardFields({site,up,now}) {\n if(!site||typeof site.property!=='string'||!['UP','DOWN'].includes(site.status)||typeof site.logSheet!=='string'||!Number.isInteger(site.row)||!Number.isInteger(site.statusColumn)||typeof up!=='boolean')throw Error('Invalid site');\n const time=new Date(now);if(Number.isNaN(time.getTime()))throw Error('Invalid time');const stamp=time.toISOString(),status=up?'UP':'DOWN',event=`${status}_FROM_${site.status}`,quote=x=>\"'\"+x.replaceAll(\"'\",\"''\")+\"'\";let col=site.statusColumn+1,label='';while(col){col--;label=String.fromCharCode(65+col%26)+label;col=Math.floor(col/26)}\n const message=`From: n8n uptime\\nDate: ${stamp}\\n\\n${site.property} is ${status}`;return{logRange:quote(site.logSheet)+'!A:G',logValues:[[stamp,stamp.slice(0,7),site.property,event==='UP_FROM_UP',event==='DOWN_FROM_DOWN',event==='UP_FROM_DOWN',event==='DOWN_FROM_UP']],statusRange:`'dashboard'!${label}${site.row}`,statusValues:[[status]],alert:event!=='UP_FROM_UP',subject:`n8n uptime: ${site.property} is ${status}`,message};\n}\n"
      },
      "n_50282b1b7045f278": {
        "name": "Confirm the status update",
        "imports": [],
        "source": "export default function confirm({updatedCells}){if(updatedCells!==1)throw Error('Status update was not confirmed');return{ok:true};}\n"
      }
    }
  },
  "presentation": {
    "designer": {
      "version": 1,
      "flow": {
        "direction": "vertical"
      }
    }
  }
}