Verwendung von HTTP Last-Modified, um abgelaufene Stellenangebote aus Google Sheets zu prüfen und Aktualisierungsbenachrichtigungen zu erhalten

• •Google-Konto + Gmail API-Anmeldedaten
• •Möglicherweise sind Ziel-API-Anmeldedaten erforderlich
• •Google Sheets API-Anmeldedaten

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  "name": "Job post expiry & refresh reminders from Google Sheets using HTTP Last‑Modified checks",
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        "sendHeaders": true,
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      "type": "n8n-nodes-base.stickyNote",
      "position": [
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      "parameters": {
        "width": 300,
        "content": "## CONFIGURATION HUB\nTHRESHOLD_DAYS = 30 (change to test)\n- DRY_RUN = false (set true for testing)\n- SPREADSHEET_ID = your sheet ID\n- INCLUDE_WEEKENDS = true"
      },
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      "position": [
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      "parameters": {
        "width": 280,
        "content": "## 🚨 DATA VALIDATION CHECKPOINT\n- Non-empty job_url\n- Valid email format\n- Non-empty recruiter_name"
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        "content": "## WEEKEND LOGIC \nIf INCLUDE_WEEKENDS = false:\n- Saturday/Sunday → status = 'SKIPPED_WEEKEND'\n- Weekdays → status = 'PROCESSING'"
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        "width": 280,
        "height": 180,
        "content": "## 🌐 HEAD REQUEST FOR HEADERS \nFetches Last-Modified header from job URLs\n⏱️ Timeout: 10 seconds\n🔄 Retries: 2 attempts\n📡 User-Agent: n8n-job-checker/1."
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      "parameters": {
        "width": 260,
        "height": 180,
        "content": "## AGE CALCULATION ENGINE\n- Parse last_modified date\n- Compare with current date  \n- Return difference in days\n- If error → age_days = 0"
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