Google Gemini와 Slack을 사용한 직원 생일 및 근속 기념일 자동화

• •Slack Bot Token 또는 Webhook URL
• •Google Sheets API 인증 정보
• •Google Gemini API Key

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  "nodes": [
    {
      "id": "node-id-1",
      "name": "Google Gemini 채팅 모델",
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "position": [
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      ],
      "parameters": {
        "options": {}
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      "id": "node-id-2",
      "name": "스티키 노트",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      ],
      "parameters": {
        "width": 304,
        "height": 480,
        "content": "## 🎉 Replace BillyBot: Free Slack Employee Birthday & Anniversary Automation\n\n- Runs daily at 9 AM. Fetches employee data from Google Sheets, filters today's birthdays/anniversaries, generates personalized AI messages, and posts to Slack.\n- Sheet format: NO | Name | Email | Date of Birth (YYYY-MM-DD) | Joining Date (YYYY-MM-DD)\n- AI features: 12 rotating message styles, auto-calculates tenure, Slack markdown formatting\n- Cost: $0-20/month vs BillyBot's $1/employee/month ($600-2,400/year for 50-200 employees)"
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      "typeVersion": 1
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    {
      "id": "node-id-3",
      "name": "매일 오전 9시 트리거",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
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      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "triggerAtHour": 9
            }
          ]
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "node-id-4",
      "name": "직원 데이터 가져오기",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
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        416
      ],
      "parameters": {
        "options": {},
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": "SHEET_ID_PLACEHOLDER",
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/GOOGLE_SHEET_DOCUMENT_ID/edit#gid=SHEET_ID_PLACEHOLDER",
          "cachedResultName": "Sheet1"
        },
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "GOOGLE_SHEET_DOCUMENT_ID",
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/GOOGLE_SHEET_DOCUMENT_ID/edit",
          "cachedResultName": "employee-data-sheet"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "GOOGLE_SHEETS_CREDENTIAL_ID",
          "name": "Google Sheets OAuth account"
        }
      },
      "typeVersion": 4.7
    },
    {
      "id": "node-id-5",
      "name": "생일 또는 근속 기념일 확인",
      "type": "n8n-nodes-base.if",
      "position": [
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      ],
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        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "loose"
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          "conditions": [
            {
              "id": "condition-id-1",
              "operator": {
                "type": "string",
                "operation": "equals"
              },
              "leftValue": "={{ $now.toFormat('MM-dd') }}",
              "rightValue": "={{ DateTime.fromISO($json['Date of Birth']).toFormat('MM-dd') }}"
            },
            {
              "id": "condition-id-2",
              "operator": {
                "type": "string",
                "operation": "equals"
              },
              "leftValue": "={{ $now.toFormat('MM-dd') }}",
              "rightValue": "={{ DateTime.fromISO($json['Joining Date']).toFormat('MM-dd') }}"
            }
          ]
        },
        "looseTypeValidation": true
      },
      "typeVersion": 2.2
    },
    {
      "id": "node-id-6",
      "name": "오늘의 기념일 통합",
      "type": "n8n-nodes-base.aggregate",
      "position": [
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        400
      ],
      "parameters": {
        "options": {},
        "aggregate": "aggregateAllItemData"
      },
      "typeVersion": 1
    },
    {
      "id": "node-id-7",
      "name": "개인화된 Slack 메시지 생성",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
        1424,
        400
      ],
      "parameters": {
        "text": "=todays date :- {{ $now }}\n\nemp data :- {{ $json.data.toJsonString() }}",
        "options": {
          "systemMessage": "=🎉 Slack Celebration Message Generator\nGenerate unique, heartfelt birthday and work anniversary messages for Slack that feel genuinely human-written, never templated.\n🎯 Core Rules\nUniqueness: Never repeat opening phrases, sentence structures, or tones across messages. Each celebration must feel completely different.\nAuthenticity: Write like a caring colleague, not a robot. Messages should be personal, warm, and memorable.\nVariation: Rotate through different styles, emojis, and approaches systematically.\n🎨 Message Styles (Rotate These)\nBirthdays:\n\nJoyful - Pure celebration and excitement\nReflective - New beginnings and fresh chapters\nGrateful - Appreciation for their presence\nPlayful - Lighthearted with gentle humor\nAchievement - Celebrate growth and contributions\nWarm - Team family togetherness\n\nWork Anniversaries:\n\nMilestone - Highlight achievements and impact\nJourney - Their evolution and growth story\nTeam Impact - How they enrich the culture\nFuture-Forward - Excitement for what's ahead\nExcellence - Innovation and expertise\nLegacy - Foundational role (5+ years)\n\n📝 Format Requirements\nStructure:\n*[Unique Opening + Name + Hook]* [Emoji Combo]\n[Specific wishes/appreciation - keep brief]\n_— from the team 💙_\nMarkdown:\n\n*bold* for names and key phrases\n_italic_ for signature only\nProper line breaks for readability\n\nEmojis (rotate):\n\nBirthday: 🎂✨, 🎉🎂, 🎂🌟, 🎈🎉, 🎂🎊, 🌟🎁, 🎉✨, 🎂💫\nAnniversary: 🎊🚀, 🏆🎉, 🎊💪, ⭐🎊, 🚀✨, 🎉🏅, 🎊⚡, 💎🎊\n\n🎲 Variation Rules\n\nOpening: Never repeat within 30 days\nTone: Never use same emotional tone consecutively\nLength: 1-3 lines per person, mobile-friendly\nAnniversary Years: Adapt message to tenure length\n\n💡 Writing Tips\n\nUse first names only\nVary sentence length and rhythm\nKeep culturally inclusive and professional\nMake it screenshot-worthy\nEach person gets distinctly different treatment\n\nOutput: Generate ready-to-post Slack messages that colleagues will genuinely react to and appreciate."
        },
        "promptType": "define"
      },
      "typeVersion": 2
    },
    {
      "id": "node-id-8",
      "name": "Slack 채널에 기념일 게시",
      "type": "n8n-nodes-base.slack",
      "position": [
        1808,
        400
      ],
      "webhookId": "WEBHOOK_ID_PLACEHOLDER",
      "parameters": {
        "text": "={{ $json.output }}",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "SLACK_CHANNEL_ID",
          "cachedResultName": "your-channel-name"
        },
        "otherOptions": {
          "includeLinkToWorkflow": false
        }
      },
      "credentials": {
        "slackApi": {
          "id": "SLACK_CREDENTIAL_ID",
          "name": "slack-bot-credential"
        }
      },
      "typeVersion": 2.3
    }
  ],
  "pinData": {},
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    "node-id-1": {
      "ai_languageModel": [
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