Google Drive Documentation Sync

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "name": "Google Drive Documentation Sync",
  "nodes": [
    {
      "parameters": {
        "event": "file.created",
        "options": {
          "folderId": "YOUR_CODE_FOLDER_ID"
        }
      },
      "id": "google-drive-trigger",
      "name": "Google Drive File Created",
      "type": "n8n-nodes-base.googleDriveTrigger",
      "typeVersion": 1,
      "position": [
        240,
        300
      ],
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// Filter for code files\nconst file = items[0].json;\nconst codeExtensions = ['.js', '.ts', '.py', '.php', '.java', '.cpp', '.cs', '.rb', '.go', '.rs', '.vue', '.jsx', '.tsx', '.swift', '.kt'];\n\nconst fileName = file.name || '';\nconst extension = fileName.substring(fileName.lastIndexOf('.'));\n\nif (codeExtensions.includes(extension)) {\n  return [{\n    json: {\n      ...file,\n      isCodeFile: true,\n      extension: extension\n    }\n  }];\n} else {\n  return []; // Skip non-code files\n}"
      },
      "id": "filter-code-files",
      "name": "Filter Code Files",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        460,
        300
      ]
    },
    {
      "parameters": {
        "authentication": "serviceAccount",
        "resource": "file",
        "operation": "download",
        "fileId": "={{$json.id}}"
      },
      "id": "download-file",
      "name": "Download File",
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        680,
        300
      ],
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// Convert binary data to string\nconst binaryData = items[0].binary.data;\nconst fileData = $node['Filter Code Files'].json;\n\n// Convert buffer to string\nconst sourceCode = binaryData.data ? \n  Buffer.from(binaryData.data, 'base64').toString('utf-8') : \n  '';\n\nreturn [{\n  json: {\n    sourceCode: sourceCode,\n    filename: fileData.name,\n    fileId: fileData.id,\n    extension: fileData.extension,\n    mimeType: fileData.mimeType,\n    size: sourceCode.length\n  }\n}];"
      },
      "id": "prepare-source-code",
      "name": "Prepare Source Code",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        900,
        300
      ]
    },
    {
      "parameters": {
        "resource": "codeDocumentation",
        "operation": "generate",
        "sourceCode": "={{$json.sourceCode}}",
        "filename": "={{$json.filename}}",
        "mode": "Accurate",
        "outputLanguage": "English",
        "documentationType": "Technical Documentation"
      },
      "id": "generate-documentation",
      "name": "Generate Documentation",
      "type": "n8n-nodes-docuwriter-ai.docuWriter",
      "typeVersion": 1,
      "position": [
        1120,
        200
      ],
      "credentials": {
        "docuWriterApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "resource": "umlDiagram",
        "operation": "generate",
        "sourceCode": "={{$node['Prepare Source Code'].json['sourceCode']}}",
        "filename": "={{$node['Prepare Source Code'].json['filename']}}",
        "diagramType": "class"
      },
      "id": "generate-uml",
      "name": "Generate UML",
      "type": "n8n-nodes-docuwriter-ai.docuWriter",
      "typeVersion": 1,
      "position": [
        1120,
        400
      ],
      "credentials": {
        "docuWriterApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// Format documentation as Google Docs HTML\nconst sourceData = $node['Prepare Source Code'].json;\nconst docData = items.find(item => item.json.resource === 'codeDocumentation')?.json || {};\nconst umlData = items.find(item => item.json.resource === 'umlDiagram')?.json || {};\n\nconst timestamp = new Date().toISOString().split('T')[0];\n\nconst documentContent = `\n<h1>${sourceData.filename} - Documentation</h1>\n\n<p><strong>Generated:</strong> ${timestamp}</p>\n<p><strong>File Size:</strong> ${sourceData.size} characters</p>\n<p><strong>Language:</strong> ${sourceData.extension.replace('.', '').toUpperCase()}</p>\n\n<hr>\n\n<h2>\ud83d\udcc4 Documentation</h2>\n<div style=\"white-space: pre-wrap; font-family: monospace; background: #f5f5f5; padding: 15px; border-radius: 5px;\">\n${docData.data?.generated?.replace(/\\n/g, '<br>') || 'Documentation generation failed'}\n</div>\n\n${umlData.data?.diagram ? `\n<h2>\ud83c\udfaf UML Diagram</h2>\n<div style=\"background: #f9f9f9; padding: 15px; border-radius: 5px;\">\n<pre><code>${umlData.data.diagram}</code></pre>\n</div>\n` : ''}\n\n<hr>\n<p><em>This documentation was automatically generated by DocuWriter.ai</em></p>\n`;\n\nreturn [{\n  json: {\n    documentContent: documentContent,\n    filename: sourceData.filename,\n    fileId: sourceData.fileId,\n    docTitle: `${sourceData.filename} - Documentation`,\n    timestamp: timestamp\n  }\n}];"
      },
      "id": "format-documentation",
      "name": "Format Documentation",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        1340,
        300
      ]
    },
    {
      "parameters": {
        "authentication": "serviceAccount",
        "resource": "folder",
        "operation": "create",
        "name": "Documentation - {{$json.timestamp}}",
        "options": {
          "parentId": "YOUR_DOCS_PARENT_FOLDER_ID"
        }
      },
      "id": "create-docs-folder",
      "name": "Create Docs Folder",
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        1560,
        200
      ],
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "authentication": "serviceAccount",
        "resource": "document",
        "operation": "create",
        "title": "={{$node['Format Documentation'].json['docTitle']}}",
        "options": {
          "folderId": "={{$json.id}}",
          "bodyContentType": "text/html"
        },
        "bodyData": "={{$node['Format Documentation'].json['documentContent']}}"
      },
      "id": "create-google-doc",
      "name": "Create Google Doc",
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        1780,
        200
      ],
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "authentication": "serviceAccount",
        "resource": "file",
        "operation": "create",
        "name": "={{$node['Format Documentation'].json['filename']}}.md",
        "driveId": {
          "__rl": true,
          "mode": "list",
          "value": ""
        },
        "options": {
          "parentId": "={{$node['Create Docs Folder'].json['id']}}",
          "uploadType": "media"
        },
        "fileContent": "# {{$node['Format Documentation'].json['filename']}} - Documentation\n\n> Auto-generated on {{$node['Format Documentation'].json['timestamp']}} using DocuWriter.ai\n\n{{$node['Generate Documentation'].json['data']['generated']}}\n\n{{#if $node['Generate UML'].json['data']['diagram']}}\n## UML Diagram\n\n```\n{{$node['Generate UML'].json['data']['diagram']}}\n```\n{{/if}}\n\n---\n*Generated automatically by DocuWriter.ai*"
      },
      "id": "create-markdown-file",
      "name": "Create Markdown File",
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        1780,
        400
      ],
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// Create summary of all created documents\nconst sourceData = $node['Format Documentation'].json;\nconst docsFolder = $node['Create Docs Folder'].json;\nconst googleDoc = $node['Create Google Doc'].json;\nconst markdownFile = $node['Create Markdown File'].json;\n\nreturn [{\n  json: {\n    summary: {\n      sourceFile: sourceData.filename,\n      docsFolder: {\n        id: docsFolder.id,\n        name: docsFolder.name,\n        webViewLink: docsFolder.webViewLink\n      },\n      googleDoc: {\n        id: googleDoc.id,\n        webViewLink: googleDoc.webViewLink\n      },\n      markdownFile: {\n        id: markdownFile.id,\n        webViewLink: markdownFile.webViewLink\n      },\n      timestamp: sourceData.timestamp\n    }\n  }\n}];"
      },
      "id": "create-summary",
      "name": "Create Summary",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        2000,
        300
      ]
    },
    {
      "parameters": {
        "fromEmail": "noreply@yourcompany.com",
        "toEmail": "team@yourcompany.com",
        "subject": "\ud83d\udcc4 New Documentation Generated: {{$node['Format Documentation'].json['filename']}}",
        "emailFormat": "html",
        "html": "<h2>\ud83c\udf89 Documentation Successfully Generated!</h2>\n\n<p>A new code file has been processed and documentation has been automatically generated:</p>\n\n<table style=\"border-collapse: collapse; width: 100%;\">\n  <tr style=\"background-color: #f2f2f2;\">\n    <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Source File</strong></td>\n    <td style=\"border: 1px solid #ddd; padding: 8px;\">{{$json.summary.sourceFile}}</td>\n  </tr>\n  <tr>\n    <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Generated On</strong></td>\n    <td style=\"border: 1px solid #ddd; padding: 8px;\">{{$json.summary.timestamp}}</td>\n  </tr>\n  <tr style=\"background-color: #f2f2f2;\">\n    <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Documentation Folder</strong></td>\n    <td style=\"border: 1px solid #ddd; padding: 8px;\"><a href=\"{{$json.summary.docsFolder.webViewLink}}\">{{$json.summary.docsFolder.name}}</a></td>\n  </tr>\n</table>\n\n<h3>\ud83d\udccb Generated Documents:</h3>\n<ul>\n  <li><a href=\"{{$json.summary.googleDoc.webViewLink}}\">\ud83d\udcc4 Google Doc Version</a> - Rich formatted documentation</li>\n  <li><a href=\"{{$json.summary.markdownFile.webViewLink}}\">\ud83d\udcdd Markdown Version</a> - Developer-friendly format</li>\n</ul>\n\n<p>All documentation is now available in your Google Drive and ready for review!</p>\n\n<hr>\n<p><em>Generated automatically by DocuWriter.ai via n8n</em></p>"
      },
      "id": "send-notification-email",
      "name": "Send Notification Email",
      "type": "n8n-nodes-base.emailSend",
      "typeVersion": 2,
      "position": [
        2220,
        200
      ],
      "credentials": {
        "smtp": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "channel": "#documentation",
        "text": "\ud83d\udcc4 New documentation generated from Google Drive!",
        "attachments": [
          {
            "color": "good",
            "title": "{{$node['Format Documentation'].json['filename']}} Documentation",
            "text": "Code documentation has been automatically generated and saved to Google Drive.",
            "fields": [
              {
                "title": "Source File",
                "value": "{{$node['Format Documentation'].json['filename']}}",
                "short": true
              },
              {
                "title": "Generated",
                "value": "{{$node['Format Documentation'].json['timestamp']}}",
                "short": true
              },
              {
                "title": "Folder",
                "value": "{{$node['Create Docs Folder'].json['name']}}",
                "short": true
              },
              {
                "title": "Status",
                "value": "\u2705 Complete",
                "short": true
              }
            ],
            "actions": [
              {
                "type": "button",
                "text": "View Google Doc",
                "url": "{{$node['Create Google Doc'].json['webViewLink']}}"
              },
              {
                "type": "button",
                "text": "View Folder",
                "url": "{{$node['Create Docs Folder'].json['webViewLink']}}"
              }
            ]
          }
        ]
      },
      "id": "notify-slack",
      "name": "Notify Slack",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 1,
      "position": [
        2220,
        400
      ],
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      }
    }
  ],
  "connections": {
    "Google Drive File Created": {
      "main": [
        [
          {
            "node": "Filter Code Files",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Filter Code Files": {
      "main": [
        [
          {
            "node": "Download File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Download File": {
      "main": [
        [
          {
            "node": "Prepare Source Code",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare Source Code": {
      "main": [
        [
          {
            "node": "Generate Documentation",
            "type": "main",
            "index": 0
          },
          {
            "node": "Generate UML",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate Documentation": {
      "main": [
        [
          {
            "node": "Format Documentation",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate UML": {
      "main": [
        [
          {
            "node": "Format Documentation",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Format Documentation": {
      "main": [
        [
          {
            "node": "Create Docs Folder",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create Docs Folder": {
      "main": [
        [
          {
            "node": "Create Google Doc",
            "type": "main",
            "index": 0
          },
          {
            "node": "Create Markdown File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create Google Doc": {
      "main": [
        [
          {
            "node": "Create Summary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create Markdown File": {
      "main": [
        [
          {
            "node": "Create Summary",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create Summary": {
      "main": [
        [
          {
            "node": "Send Notification Email",
            "type": "main",
            "index": 0
          },
          {
            "node": "Notify Slack",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": {},
  "tags": [
    {
      "id": "docuwriter",
      "name": "DocuWriter.ai"
    },
    {
      "id": "google-drive",
      "name": "Google Drive"
    },
    {
      "id": "documentation",
      "name": "Documentation"
    },
    {
      "id": "automation",
      "name": "Automation"
    }
  ],
  "meta": {
    "templateCredsSetupCompleted": false
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• docuWriterApi
• googleDriveOAuth2Api
• slackApi
• smtp

About this workflow

Google Drive Documentation Sync. Uses googleDriveTrigger, googleDrive, n8n-nodes-docuwriter-ai, emailSend. Event-driven trigger; 13 nodes.

Source: https://github.com/DocuWriter-ai/n8n-nodes-docuwriter-ai/blob/5f0f4911d0b1b496bb8675d9e0f583c6e44a23ac/examples/workflows/google-drive-documentation-sync.json — original creator credit. Request a take-down →

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