{
  "name": "Gmail PDF Invoice to PostgreSQL OCR",
  "version": "1.0.0",
  "author": "Insha Tech (Adnin Sadat Mahin)",
  "nodes": [
    {
      "parameters": {
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        },
        "filters": {
          "q": "has:attachment filename:pdf"
        }
      },
      "name": "Gmail Trigger (New Invoice Attachment)",
      "type": "n8n-nodes-base.gmailTrigger",
      "typeVersion": 1,
      "position": [250, 300]
    },
    {
      "parameters": {
        "model": "gemini-1.5-flash",
        "prompt": "Extract the vendor name, invoice date, total amount, currency, invoice number, and line items in JSON format."
      },
      "name": "Gemini 1.5 Vision OCR Parser",
      "type": "n8n-nodes-base.googleGemini",
      "typeVersion": 1,
      "position": [500, 300]
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "INSERT INTO invoices (invoice_number, vendor, amount, currency, invoice_date, raw_payload) VALUES ($1, $2, $3, $4, $5, $6) ON CONFLICT (invoice_number) DO UPDATE SET updated_at = NOW();"
      },
      "name": "PostgreSQL Insert",
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 1,
      "position": [750, 300]
    }
  ],
  "connections": {
    "Gmail Trigger (New Invoice Attachment)": {
      "main": [
        [
          {
            "node": "Gemini 1.5 Vision OCR Parser",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Gemini 1.5 Vision OCR Parser": {
      "main": [
        [
          {
            "node": "PostgreSQL Insert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}