application
工作流概述
这是一个包含10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": "39KuujB1fbOvx8Al",
"meta": {
"instanceId": "0a5638e14e0c728ef975d18d109cfb41edae575e3d911724f4f1eccde06a729f"
},
"name": "OpenAI e-mail classification - application",
"tags": [],
"nodes": [
{
"id": "6156844f-d1ba-413d-9ab2-02148bef5bf0",
"name": "Email trigger",
"type": "n8n-nodes-base.emailReadImap",
"position": [
-440,
120
],
"parameters": {
"format": "resolved",
"options": {},
"postProcessAction": "nothing",
"dataPropertyAttachmentsPrefixName": "attachment"
},
"credentials": {
"imap": {
"id": "il5dS1iQxJvOMWbE",
"name": "IMAP account"
}
},
"typeVersion": 2
},
{
"id": "1aedaa56-d988-469b-86b9-61d50e707950",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"height": 200,
"content": "### Change or add any category you want
Each category can be assigned it's own specific workflow"
},
"typeVersion": 1
},
{
"id": "d41ba844-2b99-42bb-80df-cff1b97dcbb9",
"name": "Classify email",
"type": "@n8n/n8n-nodes-langchain.textClassifier",
"position": [
0,
120
],
"parameters": {
"options": {},
"inputText": "={{ $('Email trigger').first().json.text }}
attachment:
{{ $('Extract data from attachment').first().json.text }}
",
"categories": {
"categories": [
{
"category": "job_application",
"description": "for job applications"
},
{
"category": "inbound_lead",
"description": "for sales inquiries or requests for more information about our products/services"
},
{
"category": "invoice",
"description": "for invoices"
},
{
"category": "other",
"description": "for all other sorts of emails"
}
]
}
},
"typeVersion": 1
},
{
"id": "b63a864f-f968-4e7e-9da4-d704f3ffa022",
"name": "Extract variables - email & attachment",
"type": "@n8n/n8n-nodes-langchain.informationExtractor",
"position": [
440,
20
],
"parameters": {
"text": "={{ $('Email trigger').first().json.text }}
Resume:
{{ $('Extract data from attachment').first().json.text }}
",
"options": {},
"attributes": {
"attributes": [
{
"name": "first_name",
"description": "first name of the applicant"
},
{
"name": "last_name",
"description": "last name of the applicant"
},
{
"name": "age",
"description": "age of the applicant"
},
{
"name": "residence",
"description": "residence of the applicant"
},
{
"name": "study",
"description": "relevant completed study of the applicant"
},
{
"name": "work_experience",
"description": "relevant work experience of the applicant"
},
{
"name": "personal_character",
"description": "personal characteristics of the applicant"
}
]
}
},
"typeVersion": 1
},
{
"id": "398b9240-0d9c-416e-af3b-31ba9e1ac9b2",
"name": "Extract data from attachment",
"type": "n8n-nodes-base.extractFromFile",
"onError": "continueRegularOutput",
"position": [
-220,
120
],
"parameters": {
"options": {},
"operation": "pdf",
"binaryPropertyName": "attachment0"
},
"typeVersion": 1,
"alwaysOutputData": false
},
{
"id": "9f949aac-1681-4f04-983e-8bd5c949987a",
"name": "OpenAI Chat Model 2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
660,
200
],
"parameters": {
"model": "gpt-4o",
"options": {}
},
"credentials": {
"openAiApi": {
"id": "by5xbXU1Yz36JahE",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "c7a61afe-d68d-407e-8653-46cb123877e9",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
100,
320
],
"parameters": {
"model": "gpt-4o",
"options": {}
},
"credentials": {
"openAiApi": {
"id": "by5xbXU1Yz36JahE",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "5a22e81b-8b60-443e-985b-47d493724389",
"name": "Workflow 2",
"type": "n8n-nodes-base.noOp",
"position": [
440,
180
],
"parameters": {},
"typeVersion": 1
},
{
"id": "808e4f35-604e-4354-ab8b-3ba68940016b",
"name": "Workflow 3",
"type": "n8n-nodes-base.noOp",
"position": [
600,
360
],
"parameters": {},
"typeVersion": 1
},
{
"id": "d793675d-c68d-4f73-a99d-6451be5bea30",
"name": "workflow 4",
"type": "n8n-nodes-base.noOp",
"position": [
440,
360
],
"parameters": {},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"errorWorkflow": "rkMQmtrfcSF3XpMF",
"executionOrder": "v1"
},
"versionId": "28448ab7-6d45-41df-9de3-aad0e187edc5",
"connections": {
"Email trigger": {
"main": [
[
{
"node": "Extract data from attachment",
"type": "main",
"index": 0
}
]
]
},
"Classify email": {
"main": [
[
{
"node": "Extract variables - email & attachment",
"type": "main",
"index": 0
}
],
[
{
"node": "Workflow 2",
"type": "main",
"index": 0
}
],
[
{
"node": "Workflow 3",
"type": "main",
"index": 0
}
],
[
{
"node": "workflow 4",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Classify email",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model 2": {
"ai_languageModel": [
[
{
"node": "Extract variables - email & attachment",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Extract data from attachment": {
"main": [
[
{
"node": "Classify email",
"type": "main",
"index": 0
}
]
]
},
"Extract variables - email & attachment": {
"main": [
[]
]
}
}
}
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
- Emailreadimap
- Stickynote
- @N8N/N8N Nodes Langchain.Textclassifier
- @N8N/N8N Nodes Langchain.Informationextractor
- Extractfromfile
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