NextCloud/Google/Zoho を使用した AI とイベントテキストからカレンダー項目への変換

• •HTTP Webhookエンドポイント（n8nが自動生成）
• •ターゲットAPIの認証情報が必要な場合あり
• •OpenAI API Key

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  "nodes": [
    {
      "id": "758f90ce-d94a-4c62-a793-7ddd088178f9",
      "name": "to_UTC",
      "type": "@n8n/n8n-nodes-langchain.toolCode",
      "position": [
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      "parameters": {
        "name": "to_UTC",
        "jsCode": "function toICSDate(query) {\n  let d;\n\n  if (query instanceof Date) {\n    d = query;\n\n  } else if (typeof query === 'string') {\n    if (/^\\d{8}T\\d{6}Z$/.test(query)) {\n      // Already ICS UTC format\n      return query;\n    } else if (/^\\d{8}T\\d{6}$/.test(query)) {\n      // Compact local format, parse manually\n      const [datePart, timePart] = query.split('T');\n      const year   = +datePart.slice(0, 4);\n      const month  = +datePart.slice(4, 6) - 1; // 0‑based\n      const day    = +datePart.slice(6, 8);\n      const hour   = +timePart.slice(0, 2);\n      const minute = +timePart.slice(2, 4);\n      const second = +timePart.slice(4, 6);\n      d = new Date(year, month, day, hour, minute, second);\n    } else {\n      // Assume ISO‑8601 string (\"2025-09-26T11:00:00-04:00\")\n      d = new Date(query);\n    }\n  }\n\n  if (!(d instanceof Date) || isNaN(d)) {\n    throw new Error('Invalid input: must be Date, ISO, ICS UTC, or compact string');\n  }\n\n  // Always format UTC\n  return d.toISOString()\n          .replace(/[-:]/g, '')   // strip separators\n          .replace(/\\.\\d{3}Z$/, 'Z'); // remove ms\n}\n\n// Export\nreturn toICSDate(query);",
        "description": "=Call this tool and provide a datetime object in *{{ $now.zone.zoneName }}* timezone and this will give you the UTC time, in string format \"yyyyMMdd'T'HHmmss'Z'\"."
      },
      "typeVersion": 1.1
    },
    {
      "id": "6917181e-dfdc-4cec-b621-8ce68c774231",
      "name": "Brain",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        1020,
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      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1
    },
    {
      "id": "bbcd8973-12d9-4d85-b6f6-4cec224ad447",
      "name": "付箋",
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      "position": [
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      "parameters": {
        "color": 4,
        "height": 663.3731744745251,
        "content": "## START\nSend a text block of event data (like an from an email body or text extracted from an image) to property **`eventInfo`**."
      },
      "typeVersion": 1
    },
    {
      "id": "8b7d5184-0f36-4ae8-87d1-bbaf4b8133f0",
      "name": "付箋1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        740,
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      "parameters": {
        "color": 7,
        "height": 663.3731744745248,
        "content": "## EXPANSION\n(Optional) If you wanted this workflow to receive an image, and send that directly to the language model to parse for event data, you can use this switch node to send the binary image down a different pathway.\n\nThat's up to you to build ;-)"
      },
      "typeVersion": 1
    },
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      "disabled": true,
      "position": [
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      "parameters": {
        "rules": {
          "values": [
            {
              "outputKey": "Text",
              "conditions": {
                "options": {
                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
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                "combinator": "and",
                "conditions": [
                  {
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                    "operator": {
                      "type": "string",
                      "operation": "notEmpty",
                      "singleValue": true
                    },
                    "leftValue": "={{ $json.body.eventInfo }}",
                    "rightValue": ""
                  }
                ]
              },
              "renameOutput": true
            },
            {
              "outputKey": "Image",
              "conditions": {
                "options": {
                  "leftValue": "",
                  "caseSensitive": true,
                  "typeValidation": "strict"
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                "conditions": [
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                    "leftValue": "={{ $binary }}",
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              "renameOutput": true
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      "position": [
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      "parameters": {
        "width": 358.7342715692612,
        "height": 663.3731744745251,
        "content": "## PARSE EVENT DETAILS\nThis agent takes in a block of unformatted text that contains info about an event (eg. time, place, event name...) and parses it to a structured output."
      },
      "typeVersion": 1
    },
    {
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      "name": "付箋3",
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      "position": [
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      "parameters": {
        "color": 5,
        "height": 663.3731744745251,
        "content": "## CREATE EVENT\nSends a request to `NextCloud` CalDAV to create an event in your calendar.\n\nYou'll need to add `Basic Auth` credentials (user/pass) from your NextCloud account.\n\nCreate an app-specific password here: [your.NC.url/index.php/settings/user/security]"
      },
      "typeVersion": 1
    },
    {
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      "name": "付箋4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "color": 3,
        "height": 663.3731744745251,
        "content": "## RESPOND\nSend your success response back to the source system. You can edit this to return a JSON object instead if required.\n\n**PS** - This workflow plugs in seamlessly with [this iCloud Shortcut](https://www.icloud.com/shortcuts/8a107ea08ec4471d877b019520a4802c)"
      },
      "typeVersion": 1
    },
    {
      "id": "6b37e5dd-e26a-4920-a929-9a9749ad8cc1",
      "name": "付箋5",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        480,
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      "parameters": {
        "color": 7,
        "width": 1400.3576539723263,
        "height": 258.08325199688073,
        "content": "## SUGGESTIONS\nIn production setting, you'll want to account for errors and bad input. What if the user just puts in random text with no event details? The Ai should be instructed to then output a specific fail response that goes back to the source system to tell it the input was no good.\n\nIf your NextCloud is self-hosted, and there's a chance it could be down, you may want to catch an error there as well, and announce that back to the source system, via webhook response.\n\nI use a version of this workflow with an iOS shortcut for my iPhone. I tell Siri \"Add this to my calendar\" and it opens the camera, I snap, and it sends the text in the photo to this workflow. Very easy to use. *If you have an iPhone*, here's the Shortcut for you to do the same:\n\n#### ⭐  https://www.icloud.com/shortcuts/8a107ea08ec4471d877b019520a4802c"
      },
      "typeVersion": 1
    },
    {
      "id": "4e383a02-ece9-4c0f-a8a6-4090885e6c40",
      "name": "Create Zoho Event (API)",
      "type": "n8n-nodes-base.httpRequest",
      "notes": "Documentation:\nhttps://www.zoho.com/calendar/help/api/post-create-event.html",
      "disabled": true,
      "position": [
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      "parameters": {
        "url": "https://calendar.zoho.com/api/v1/calendars/INSERT_CAL_UID_HERE/events",
        "method": "POST",
        "options": {},
        "sendQuery": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "oAuth2Api",
        "queryParameters": {
          "parameters": [
            {
              "name": "eventdata",
              "value": "={\n    \"dateandtime\": {\n        \"timezone\": {{ JSON.stringify($now.zone.zoneName) }},\n        \"start\": {{ JSON.stringify($json.output.startTime) }},\n        \"end\": {{ JSON.stringify($json.output.endTime) }}\n    },\n    \"title\": {{ JSON.stringify($json.output.eventTitle) }},\n    \"location\": {{ JSON.stringify($json.output.location != null ? $json.output.location : \"\") }},\n    \"url\": {{ JSON.stringify($json.output.url != null ? $json.output.url : \"\") }},\n    \"transparency\": 1,\n    \"attendees\": [\n        {\n            \"email\": \"INSERT_EMAIL_HERE\"\n        }\n    ],\n    \"description\": {{ JSON.stringify($json.output.description != null ? $json.output.description : \"\") }}\n}"
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      "typeVersion": 4.2
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      "name": "Structured Output",
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      "parameters": {
        "jsonSchemaExample": "{\n  \"eventTitle\": \"Marketing Conference\",\n  \"description\": null,\n  \"startTime\": \"20250912T160000Z\",\n  \"endTime\": \"20250912T200000Z\",\n  \"location\": \"15000 Park Ave, Suite 1234, New York, New York, United States\",\n  \"url\": null\n}"
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      "typeVersion": 1.2
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      "parameters": {
        "options": {
          "responseCode": 201
        },
        "respondWith": "text",
        "responseBody": "=Your calendar event was successfully created."
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      "parameters": {
        "options": {
          "responseCode": 400
        },
        "respondWith": "text",
        "responseBody": "=There was a problem with the event info. Try again."
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      "typeVersion": 1.1
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    {
      "id": "7f11b9f4-526e-45fd-8e89-e89c8b9e2db4",
      "name": "NextCloud Cal Event Creation",
      "type": "n8n-nodes-base.httpRequest",
      "onError": "continueErrorOutput",
      "position": [
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      ],
      "parameters": {
        "url": "https://your.nextcloudurl.com/remote.php/dav/calendars/YOUR_USER/personal/newEvent.ics",
        "body": "=BEGIN:VCALENDAR\nVERSION:2.0\nPRODID:-//n8n//CalDAV Connector//EN\nBEGIN:VEVENT\nUID:123456789@example.com\nDTSTAMP:{{ $now.setZone($now.zone.zoneName).toUTC().toFormat(\"yyyyMMdd'T'HHmmss'Z'\") }}\nDTSTART:{{ $json.output.startTime }}\nDTEND:{{ $json.output.endTime }}\nSUMMARY:{{ $json.output.eventTitle }}\nDESCRIPTION:{{ $json.output.description }}\nLOCATION:{{ $json.output.location }}\nURL:{{ $json.output.url }}\nEND:VEVENT\nEND:VCALENDAR",
        "method": "PUT",
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        "sendBody": true,
        "contentType": "raw",
        "rawContentType": "text/calendar; charset=utf-8"
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            "caseSensitive": true,
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          "conditions": [
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              "id": "3bd94ff5-bebb-43a4-ae06-7790de6df7a6",
              "operator": {
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                "singleValue": true
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              "leftValue": "={{ $json.output.error }}",
              "rightValue": ""
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      "typeVersion": 2.1
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    {
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      "name": "付箋6",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "color": 5,
        "width": 435.7280989463619,
        "height": 478.57603298212047,
        "content": "## Eric Knaus www.MarketingGuy.ai\nFind me on LinkedIn: https://linkedin.com/in/ericknaus\n\n![My Image](https://ericknaus.com/wp-content/uploads/2025/09/black-and-white_sm.png)\n\n## TTC - Text-to-Calendar event"
      },
      "typeVersion": 1
    },
    {
      "id": "f10d8f8d-88b0-49be-8263-14c7a343bc1d",
      "name": "Google カレンダー",
      "type": "n8n-nodes-base.googleCalendar",
      "disabled": true,
      "position": [
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      ],
      "parameters": {
        "end": "={{ $json.output.endTime }}",
        "start": "={{ $json.output.startTime }}",
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": ""
        },
        "additionalFields": {}
      },
      "typeVersion": 1.1
    },
    {
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      "name": "Inbound Event Info",
      "type": "n8n-nodes-base.webhook",
      "position": [
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      ],
      "webhookId": "2ee09e2c-6ee0-4e12-a941-a40a63442bb1",
      "parameters": {
        "path": "make-cal-event-xdt8gh4-rf3827",
        "options": {},
        "httpMethod": "POST",
        "responseMode": "responseNode"
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      "typeVersion": 2
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        "text": "=Local time context: {{ $now.toString() }}  \nServer timezone: {{ $now.zone.zoneName }}  \n\nInstructions:\n1. Extract calendar event details from the text below.  \n2. For event times, pass each local datetime through `to_UTC(Datetime)` to get UTC output values, in \"YYYYMMDDTHHmmssZ\" format.  \n4. Apply special cases:\n   - Case 1: If text has a date and at least one person/place but no clear details → infer event. If no time, use 08:00–22:00 local.  \n   - Case 2: If there is no date and no person/place/event → output exactly: {\"error\": \"BAD INPUT\"} \n\nText to parse:\n{{ JSON.stringify($json.body.eventInfo) }}",
        "options": {
          "systemMessage": "You are an assistant that extracts calendar event information from text.\n\nAlways respond ONLY in JSON.\n\nNormal Output Schema (when event is valid or inferable):\n{\n  \"eventTitle\": \"string\",\n  \"description\": \"string or null\",\n  \"startTime\": \"YYYYMMDDTHHmmssZ\",  // UTC, ISO8601\n  \"endTime\": \"YYYYMMDDTHHmmssZ\",    // UTC, ISO8601\n  \"location\": \"string or null\",\n  \"url\": \"string or null\"\n}\n\nSpecial Rules:\n1. If text includes at least one date and a name or place but lacks other details → infer a plausible event.  \n   - If no time is provided → assume 08:00 for start time and 22:00 for end time, local time. Convert using `to_UTC`.  \n2. If text has no date and no usable event/person/place detail → output:\n   {\n     \"error\": \"BAD INPUT\"\n   }\n\nFormatting Rules:\n- Output strictly valid JSON only.\n- Use null values for missing optional fields unless you are inferring details under rule (1).\n- Use the `to_UTC(Datetime)` tool to convert each local datetime to UTC."
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.6
    }
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