{
  "meta": {
    "instanceId": "2f9460831fcdb0e9a4494f0630367cfe2968282072e2d27c6ee6ab0a4c165a36"
  },
  "nodes": [
    {
      "id": "ff4e8706-09a0-4bf1-86c1-dfb65f55ccb3",
      "name": "Google Drive Trigger",
      "type": "n8n-nodes-base.googleDriveTrigger",
      "position": [
        20,
        -140
      ],
      "parameters": {
        "event": "fileCreated",
        "options": {},
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        },
        "triggerOn": "specificFolder",
        "folderToWatch": {
          "__rl": true,
          "mode": "list",
          "value": "1-hRMnBRYgY6iVJ_youKMyPz83k9GAVYu",
          "cachedResultUrl": "https://drive.google.com/drive/folders/1-hRMnBRYgY6iVJ_youKMyPz83k9GAVYu",
          "cachedResultName": "nnnnnnnnnnn8n"
        }
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "PlyNQuMqlwn9SuLb",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "340fb03b-3b8a-4eb4-ad4c-b0ba12b72b19",
      "name": "Google Drive",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        260,
        -140
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.id }}"
        },
        "options": {
          "binaryPropertyName": "data"
        },
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "PlyNQuMqlwn9SuLb",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "4a5d037f-0103-4645-87d0-785dfdfb80d1",
      "name": "Extract from File",
      "type": "n8n-nodes-base.extractFromFile",
      "position": [
        260,
        60
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1,
      "alwaysOutputData": false
    },
    {
      "id": "36c7e83d-f22f-4a71-b5a2-64ed3e4ce24b",
      "name": "OpenAI",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        -120,
        260
      ],
      "parameters": {
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini",
          "cachedResultName": "GPT-4O-MINI"
        },
        "options": {},
        "messages": {
          "values": [
            {
              "role": "system",
              "content": "Analyze the provided tabular data and identify the columns that contain personally identifiable information (PII). Return only the column names that contain PII, separated by commas. Key name: 'content'. Do not include any additional text or explanation."
            },
            {
              "content": "=Here is some tabular data with column headers and two example rows.nnHeaders: {{Object.keys($json)}}nnExample Row 1: {{Object.values($json)}}nn"
            }
          ]
        },
        "jsonOutput": true
      },
      "credentials": {
        "openAiApi": {
          "id": "Mld1OIvnEVogxjDH",
          "name": "OpenAi account"
        }
      },
      "executeOnce": true,
      "typeVersion": 1.7
    },
    {
      "id": "771c6535-47d4-4c70-b487-bd5ac602e29c",
      "name": "Merge",
      "type": "n8n-nodes-base.merge",
      "position": [
        440,
        260
      ],
      "parameters": {
        "numberInputs": 3
      },
      "typeVersion": 3
    },
    {
      "id": "1fc467fd-379d-4841-978b-89c1453b61d8",
      "name": "Upload to Drive",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        740,
        260
      ],
      "parameters": {
        "name": "={{ $json.fileName }}",
        "content": "={{ $json.content }}",
        "driveId": {
          "__rl": true,
          "mode": "list",
          "value": "My Drive"
        },
        "options": {},
        "folderId": {
          "__rl": true,
          "mode": "list",
          "value": "1F30Qu3csrmMhtcu_prMipeiGm-64VEdd",
          "cachedResultUrl": "https://drive.google.com/drive/folders/1F30Qu3csrmMhtcu_prMipeiGm-64VEdd",
          "cachedResultName": "processed"
        },
        "operation": "createFromText"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "PlyNQuMqlwn9SuLb",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3
    },
    {
      "id": "92715586-e630-4584-83a3-1af42d7cb50e",
      "name": "Get filename",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        20,
        60
      ],
      "parameters": {
        "options": {
          "destinationFieldName": "originalFilename"
        },
        "fieldToSplitOut": "name"
      },
      "executeOnce": true,
      "typeVersion": 1
    },
    {
      "id": "2c4b3242-34db-4948-b835-cd2340ad7b19",
      "name": "Get result",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        200,
        260
      ],
      "parameters": {
        "options": {
          "destinationFieldName": "data"
        },
        "fieldToSplitOut": "message.content.content"
      },
      "typeVersion": 1
    },
    {
      "id": "4207dc71-5b0e-4780-9f23-00f5a7fc3862",
      "name": "Remove PII columns",
      "type": "n8n-nodes-base.code",
      "position": [
        580,
        260
      ],
      "parameters": {
        "jsCode": "// Input: All items from the previous nodenconst input = $input.all();nn// Step 1: Extract the PII column names from the first itemnconst firstItem = input[0];nif (!firstItem.json.data || !firstItem.json.data) {n  throw new Error("PII column names are missing in the input data.");n}nconst piiColumns = firstItem.json.data.split(',').map(col => col.trim());n//console.log("PII Columns to Remove:", piiColumns);nn// Step 2: Remove the first two items and process the remaining rowsnlet rows = input.slice(2).map(item => item.json); // Exclude the first itemn//console.log("Rows to convert (before skipping last):", rows);nnn// Ensure there are rows to processnif (rows.length === 0) {n  throw new Error("No rows to convert to CSV.");n}nn// Step 3: Remove PII columns from each rownconst sanitizedRows = rows.map(row => {n  const sanitizedRow = { ...row }; // Copy the rown  piiColumns.forEach(column => delete sanitizedRow[column]); // Remove PII columnsn  return sanitizedRow;n});n//console.log("Sanitized Rows:", sanitizedRows);nn// Step 4: Extract headers from sanitized rowsnconst headers = Object.keys(sanitizedRows[0]); // Extract updated headersn//console.log("CSV Headers:", headers);nn// Step 5: Convert rows to CSV formatnconst csvRows = [n  headers.join(','), // Add header rown  ...sanitizedRows.map(row => n    headers.map(header => String(row[header] || '').replace(/,/g, '')).join(',') // Match headers with rowsn  )n];nn// Join all rows with a newline characternconst csvContent = csvRows.join('\n');n//console.log("CSV Content:", csvContent);nnconst originalFileName = input[1].json.originalFilename;nn// Step 7: Generate a new filenamenconst fileExtension = originalFileName.split('.').pop();nconst baseName = originalFileName.replace(`.${fileExtension}`, '');nconst newFileName = `${baseName}_PII_removed.${fileExtension}`;n//console.log("New Filename:", newFileName);nn// Step 8: Return the CSV content and filename as JSONnreturn [n  {n    json: {n      fileName: newFileName, // New file namen      content: csvContent // CSV content as plain textn    }n  }n];n"
      },
      "typeVersion": 2
    },
    {
      "id": "e9f25ee7-cd00-4496-9062-5d57cab5788d",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -300,
        -220
      ],
      "parameters": {
        "height": 260,
        "content": "## Remove PII from CSV FilesnThis workflow monitors a Google Drive folder for new CSV files, identifies and removes PII columns using OpenAI, and uploads the sanitized file back to the drive. It requires Google Drive and OpenAI integrations with API access enabled."
      },
      "typeVersion": 1
    }
  ],
  "pinData": {},
  "connections": {
    "Merge": {
      "main": [
        [
          {
            "node": "Remove PII columns",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI": {
      "main": [
        [
          {
            "node": "Get result",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get result": {
      "main": [
        [
          {
            "node": "Merge",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get filename": {
      "main": [
        [
          {
            "node": "Merge",
            "type": "main",
            "index": 1
          }
        ]
      ]
    },
    "Google Drive": {
      "main": [
        [
          {
            "node": "Extract from File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Upload to Drive": {
      "main": [
        []
      ]
    },
    "Extract from File": {
      "main": [
        [
          {
            "node": "OpenAI",
            "type": "main",
            "index": 0
          },
          {
            "node": "Merge",
            "type": "main",
            "index": 2
          }
        ]
      ]
    },
    "Remove PII columns": {
      "main": [
        [
          {
            "node": "Upload to Drive",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Google Drive Trigger": {
      "main": [
        [
          {
            "node": "Get filename",
            "type": "main",
            "index": 0
          },
          {
            "node": "Google Drive",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}