Attachments Gmail to drive and google sheets
工作流概述
这是一个包含17个节点的复杂工作流,主要用于自动化处理各种任务。
工作流源代码
{
"id": "XnGZZfT5u0Cw1X3p",
"meta": {
"instanceId": "3378b0d68c3b7ebfc71b79896d94e1a044dec38e99a1160aed4e9c323910fbe2",
"templateCredsSetupCompleted": true
},
"name": "Attachments Gmail to drive and google sheets",
"tags": [],
"nodes": [
{
"id": "0404ef0a-9750-495a-8798-98d4b059a083",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-580,
-420
],
"parameters": {
"height": 440,
"content": "## Setup
1. Setup your **Gmail** and **Google Drive** credentials
2. Setup your **Google Sheets** credentials
3. Setup your **Openai** api key"
},
"typeVersion": 1
},
{
"id": "8751a7f1-aae4-4746-aae7-3d8563845b8c",
"name": "Gmail Trigger1",
"type": "n8n-nodes-base.gmailTrigger",
"position": [
-640,
120
],
"parameters": {
"simple": false,
"filters": {
"readStatus": "unread"
},
"options": {
"downloadAttachments": true
},
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"credentials": {
"gmailOAuth2": {
"id": "v8YJP3VfeGtRk5la",
"name": "Gmail account"
}
},
"typeVersion": 1.1
},
{
"id": "40f62192-5acb-4915-aa07-e5a0dfeb7581",
"name": "Setup1",
"type": "n8n-nodes-base.set",
"position": [
-300,
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],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "4cca07a2-6a70-4011-a025-65246e652fb9",
"name": "url_to_drive_folder",
"type": "string",
"value": "1fCWCdqrFP3WrjjLc-gJtxMaiaF5lh8Ko"
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "d928e797-8851-4ab4-9199-cd555a40eae9",
"name": "Upload PDF to Drive1",
"type": "n8n-nodes-base.httpRequest",
"maxTries": 5,
"position": [
220,
0
],
"parameters": {
"url": "https://www.googleapis.com/upload/drive/v3/files",
"method": "POST",
"options": {},
"sendBody": true,
"sendQuery": true,
"contentType": "binaryData",
"authentication": "predefinedCredentialType",
"queryParameters": {
"parameters": [
{
"name": "uploadType",
"value": "media"
}
]
},
"inputDataFieldName": "={{ $binary.attachment_0.mimeType === \"application/pdf\"
? \"attachment_0\"
: \"attachment_1\" }}",
"nodeCredentialType": "googleDriveOAuth2Api"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "p5I6S4YkJps1zvwz",
"name": "Google Drive account 2"
}
},
"retryOnFail": true,
"typeVersion": 4.2
},
{
"id": "22df6933-a0c7-4cce-8114-5332038a14c3",
"name": "Rename file1",
"type": "n8n-nodes-base.googleDrive",
"position": [
400,
0
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "update",
"newUpdatedFileName": "={{ $('Setup1').item.json.subject }}_invoice_{{ $now.format('yyyy-MM-dd') }}.pdf"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "p5I6S4YkJps1zvwz",
"name": "Google Drive account 2"
}
},
"typeVersion": 3
},
{
"id": "ce6a6a4c-17ba-4cf7-b07a-97b9d8d80844",
"name": "Move to the correct folder1",
"type": "n8n-nodes-base.googleDrive",
"position": [
580,
0
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive",
"cachedResultUrl": "https://drive.google.com/drive/my-drive",
"cachedResultName": "My Drive"
},
"folderId": {
"__rl": true,
"mode": "list",
"value": "1fCWCdqrFP3WrjjLc-gJtxMaiaF5lh8Ko",
"cachedResultUrl": "",
"cachedResultName": "2025"
},
"operation": "move"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "p5I6S4YkJps1zvwz",
"name": "Google Drive account 2"
}
},
"typeVersion": 3
},
{
"id": "e64aac5c-a314-46b6-b7db-fc0d6f450e1f",
"name": "Gmail",
"type": "n8n-nodes-base.gmail",
"position": [
1240,
0
],
"webhookId": "556cbee3-8de0-4645-9e91-e7c0c252f2ab",
"parameters": {
"messageId": "={{ $('Gmail Trigger1').item.json.id }}",
"operation": "markAsRead"
},
"credentials": {
"gmailOAuth2": {
"id": "v8YJP3VfeGtRk5la",
"name": "Gmail account"
}
},
"typeVersion": 2.1
},
{
"id": "ea74cfc1-0305-418d-9f5f-bffcfb3bb2c7",
"name": "Extract from File2",
"type": "n8n-nodes-base.extractFromFile",
"position": [
1200,
-180
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "0398d982-78fd-4830-b5cf-271195af80fd",
"name": "Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
800,
0
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "p5I6S4YkJps1zvwz",
"name": "Google Drive account 2"
}
},
"typeVersion": 3
},
{
"id": "3b4a96d4-a6ee-486a-a795-fe410ccc38b2",
"name": "OpenAI Model",
"type": "@n8n/n8n-nodes-langchain.lmOpenAi",
"position": [
1740,
20
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o",
"cachedResultName": "gpt-4o"
},
"options": {
"temperature": 0
}
},
"credentials": {
"openAiApi": {
"id": "XJdxgMSXFgwReSsh",
"name": "n8n key"
}
},
"typeVersion": 1
},
{
"id": "a7dd0d95-5e79-4bd2-a8a6-2178264d19fc",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
1940,
40
],
"parameters": {
"jsonSchema": "{
\"Invoice date\": { \"type\": \"date\" },
\"Invoice description\": { \"type\": \"string\" },
\"Total price\": { \"type\": \"number\" },
\"Fichero\": { \"type\": \"string\" }
}"
},
"typeVersion": 1.1
},
{
"id": "68d98f4c-e679-48e3-a1a1-529cda4e31a4",
"name": "Append to Reconciliation Sheet",
"type": "n8n-nodes-base.googleSheets",
"position": [
2280,
-140
],
"parameters": {
"columns": {
"value": {},
"schema": [
{
"id": "Invoice date",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Invoice date",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Invoice Description",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Invoice Description",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Total price",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Total price",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Fichero",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Fichero",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "autoMapInputData",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "append",
"sheetName": {
"__rl": true,
"mode": "id",
"value": "gid=0"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1gIUnjSWUhsoTOVVd4ZoVjARCGQfGE8s7FWcju3lNajM",
"cachedResultUrl": "",
"cachedResultName": "facturas"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "3IOU2VjBnR4hGohx",
"name": "Google Sheets account"
}
},
"typeVersion": 4.3
},
{
"id": "80e1c8f4-b593-4c5f-b9e2-f3b7996ee6d4",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1680,
-400
],
"parameters": {
"color": 7,
"width": 805.0578351924228,
"height": 656.5014186128178,
"content": "## 3. Use LLMs to Extract Values from Data
[Read more about Basic LLM Chain](https://docs.n8n.io/integrations/builtin/cluster-nodes/root-nodes/n8n-nodes-langchain.chainllm/)
Large language models are perfect for data extraction tasks as they can work across a range of document layouts without human intervention. The extracted data can then be sent to a variety of datastores such as spreadsheets, accounting systems and/or CRMs.
**Tip:** The \"Structured Output Parser\" ensures the AI output can be
inserted to our spreadsheet without additional clean up and/or formatting. "
},
"typeVersion": 1
},
{
"id": "3754e10e-a233-4ce0-bc79-bb5c01db9695",
"name": "Map Output",
"type": "n8n-nodes-base.set",
"position": [
2080,
-140
],
"parameters": {
"mode": "raw",
"options": {},
"jsonOutput": "={{ $json.output }}"
},
"typeVersion": 3.3
},
{
"id": "a42ff16f-d0df-4b6d-9a36-849f85d1facc",
"name": "Apply Data Extraction Rules",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
1740,
-140
],
"parameters": {
"text": "=Given the following invoice in the <invoice> xml tags, extract the following information as listed below.
If you cannot the information for a specific item, then leave blank and skip to the next.
* Invoice date
* Invoice Description: {{ $('Rename file1').item.json.name }}
* Total price
* Fichero: =HYPERLINK(\"https://drive.google.com/file/d/{{ $('Move to the correct folder1').item.json.id }}/view\", \"Ver Documento\")
<invoice>{{ $json.text }}</invoice>",
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.4
},
{
"id": "f6de5d5a-d2dc-4590-8f46-3f250b8fca9f",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1860,
0
],
"parameters": {
"width": 192.26896179623753,
"height": 213.73043662572252,
"content": "
**Need more attributes?**
Change it here!"
},
"typeVersion": 1
},
{
"id": "255fe8c1-5bd7-41cc-b1f9-c8956b5ad101",
"name": "Only invoice mails with attachments",
"type": "n8n-nodes-base.if",
"position": [
0,
120
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 1,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "or",
"conditions": [
{
"id": "229200d1-ec13-4970-ae0e-2c8e17da0bdf",
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $('Gmail Trigger1').item.json.headers['content-type'] }}",
"rightValue": "multipart/mixed"
},
{
"id": "new-condition",
"operator": {
"type": "boolean",
"operation": "isNotEmpty"
},
"leftValue": "={{ $json.attachments }}"
}
]
}
},
"typeVersion": 2.1
}
],
"active": true,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "eb152808-e993-4e18-9dd8-10f21df57bf1",
"connections": {
"Gmail": {
"main": [
[]
]
},
"Setup1": {
"main": [
[
{
"node": "Only invoice mails with attachments",
"type": "main",
"index": 0
}
]
]
},
"Map Output": {
"main": [
[
{
"node": "Append to Reconciliation Sheet",
"type": "main",
"index": 0
}
]
]
},
"Google Drive": {
"main": [
[
{
"node": "Extract from File2",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Model": {
"ai_languageModel": [
[
{
"node": "Apply Data Extraction Rules",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Rename file1": {
"main": [
[
{
"node": "Move to the correct folder1",
"type": "main",
"index": 0
}
]
]
},
"Gmail Trigger1": {
"main": [
[
{
"node": "Setup1",
"type": "main",
"index": 0
}
]
]
},
"Extract from File2": {
"main": [
[
{
"node": "Apply Data Extraction Rules",
"type": "main",
"index": 0
}
]
]
},
"Upload PDF to Drive1": {
"main": [
[
{
"node": "Rename file1",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Apply Data Extraction Rules",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Apply Data Extraction Rules": {
"main": [
[
{
"node": "Map Output",
"type": "main",
"index": 0
}
]
]
},
"Move to the correct folder1": {
"main": [
[
{
"node": "Gmail",
"type": "main",
"index": 0
},
{
"node": "Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Only invoice mails with attachments": {
"main": [
[
{
"node": "Upload PDF to Drive1",
"type": "main",
"index": 0
}
],
[
{
"node": "Gmail",
"type": "main",
"index": 0
}
]
]
}
}
}
功能特点
- 自动检测新邮件
- AI智能内容分析
- 自定义分类规则
- 批量处理能力
- 详细的处理日志
技术分析
节点类型及作用
- Stickynote
- Gmailtrigger
- Set
- Httprequest
- Googledrive
复杂度评估
配置难度:
维护难度:
扩展性:
实施指南
前置条件
- 有效的Gmail账户
- n8n平台访问权限
- Google API凭证
- AI分类服务订阅
配置步骤
- 在n8n中导入工作流JSON文件
- 配置Gmail节点的认证信息
- 设置AI分类器的API密钥
- 自定义分类规则和标签映射
- 测试工作流执行
- 配置定时触发器(可选)
关键参数
| 参数名称 | 默认值 | 说明 |
|---|---|---|
| maxEmails | 50 | 单次处理的最大邮件数量 |
| confidenceThreshold | 0.8 | 分类置信度阈值 |
| autoLabel | true | 是否自动添加标签 |
最佳实践
优化建议
- 定期更新AI分类模型以提高准确性
- 根据邮件量调整处理批次大小
- 设置合理的分类置信度阈值
- 定期清理过期的分类规则
安全注意事项
- 妥善保管API密钥和认证信息
- 限制工作流的访问权限
- 定期审查处理日志
- 启用双因素认证保护Gmail账户
性能优化
- 使用增量处理减少重复工作
- 缓存频繁访问的数据
- 并行处理多个邮件分类任务
- 监控系统资源使用情况
故障排除
常见问题
邮件未被正确分类
检查AI分类器的置信度阈值设置,适当降低阈值或更新训练数据。
Gmail认证失败
确认Google API凭证有效且具有正确的权限范围,重新进行OAuth授权。
调试技巧
- 启用详细日志记录查看每个步骤的执行情况
- 使用测试邮件验证分类逻辑
- 检查网络连接和API服务状态
- 逐步执行工作流定位问题节点
错误处理
工作流包含以下错误处理机制:
- 网络超时自动重试(最多3次)
- API错误记录和告警
- 处理失败邮件的隔离机制
- 异常情况下的回滚操作