BillBot
工作流概述
这是一个包含6个节点的中等工作流,主要用于自动化处理各种任务。
工作流源代码
{
"id": "200",
"name": "BillBot",
"nodes": [
{
"name": "Set relevant data",
"type": "n8n-nodes-base.set",
"position": [
780,
460
],
"parameters": {
"values": {
"string": [
{
"name": "Category",
"value": "={{$node[\"Parse details from receipt\"].json[\"predictions\"][0][\"category\"][\"value\"]}}"
},
{
"name": "Date",
"value": "={{$node[\"Parse details from receipt\"].json[\"predictions\"][0][\"date\"][\"iso\"]}}"
},
{
"name": "Merchant",
"value": "={{$node[\"Parse details from receipt\"].json[\"predictions\"][0][\"merchant\"][\"name\"]}}"
},
{
"name": "Time",
"value": "={{$node[\"Parse details from receipt\"].json[\"predictions\"][0][\"time\"][\"iso\"]}}"
},
{
"name": "Amount",
"value": "={{$node[\"Parse details from receipt\"].json[\"predictions\"][0][\"total\"][\"amount\"]}}"
},
{
"name": "Currency",
"value": "={{$node[\"Parse details from receipt\"].json[\"predictions\"][0][\"locale\"][\"currency\"]}}"
},
{
"name": "Added by",
"value": "={{$node[\"Get receipts from bot\"].json[\"message\"][\"chat\"][\"first_name\"]}} {{$node[\"Get receipts from bot\"].json[\"message\"][\"chat\"][\"last_name\"]}}"
}
]
},
"options": {},
"keepOnlySet": true
},
"typeVersion": 1
},
{
"name": "Send confirmation",
"type": "n8n-nodes-base.telegram",
"position": [
1180,
460
],
"parameters": {
"text": "=✅ Bill of {{$node[\"Set relevant data\"].json[\"Amount\"]}} {{$node[\"Set relevant data\"].json[\"Currency\"]}} from {{$node[\"Set relevant data\"].json[\"Merchant\"]}}, dated {{$node[\"Set relevant data\"].json[\"Date\"]}} at {{$node[\"Set relevant data\"].json[\"Time\"]}}. Category was {{$node[\"Set relevant data\"].json[\"Category\"]}}.",
"chatId": "={{$node[\"Get receipts from bot\"].json[\"message\"][\"chat\"][\"id\"]}}",
"additionalFields": {}
},
"credentials": {
"telegramApi": ""
},
"typeVersion": 1
},
{
"name": "Get receipts from bot",
"type": "n8n-nodes-base.telegramTrigger",
"position": [
380,
460
],
"webhookId": "ef81fe75-10c8-40c3-8bea-d65648556705",
"parameters": {
"updates": [
"*"
],
"additionalFields": {
"download": true
}
},
"credentials": {
"telegramApi": ""
},
"typeVersion": 1
},
{
"name": "Parse details from receipt",
"type": "n8n-nodes-base.httpRequest",
"position": [
580,
460
],
"parameters": {
"url": "https://api.mindee.net/products/expense_receipts/v2/predict",
"options": {
"bodyContentType": "multipart-form-data"
},
"requestMethod": "POST",
"authentication": "headerAuth",
"jsonParameters": true,
"sendBinaryData": true
},
"credentials": {
"httpHeaderAuth": ""
},
"typeVersion": 1
},
{
"name": "Add to expense record",
"type": "n8n-nodes-base.googleSheets",
"position": [
980,
460
],
"parameters": {
"range": "A:G",
"options": {},
"sheetId": "",
"operation": "append",
"authentication": "oAuth2"
},
"credentials": {
"googleSheetsOAuth2Api": ""
},
"typeVersion": 1
},
{
"name": "Send SMS notification",
"type": "n8n-nodes-base.twilio",
"position": [
1380,
460
],
"parameters": {
"to": "",
"from": "",
"message": "=A receipt worth {{$node[\"Set relevant data\"].json[\"Amount\"]}} {{$node[\"Set relevant data\"].json[\"Currency\"]}} was submitted by {{$node[\"Set relevant data\"].json[\"Added by\"]}} and has been added to the following spreadsheet:
https://docs.google.com/spreadsheets/d/{{$node[\"Add to expense record\"].parameter[\"sheetId\"]}}/"
},
"credentials": {
"twilioApi": "Twilio Programmable SMS"
},
"typeVersion": 1
}
],
"connections": {
"Send confirmation": {
"main": [
[
{
"node": "Send SMS notification",
"type": "main",
"index": 0
}
]
]
},
"Set relevant data": {
"main": [
[
{
"node": "Add to expense record",
"type": "main",
"index": 0
}
]
]
},
"Add to expense record": {
"main": [
[
{
"node": "Send confirmation",
"type": "main",
"index": 0
}
]
]
},
"Get receipts from bot": {
"main": [
[
{
"node": "Parse details from receipt",
"type": "main",
"index": 0
}
]
]
},
"Parse details from receipt": {
"main": [
[
{
"node": "Set relevant data",
"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
- Set
- Telegram
- Telegramtrigger
- Httprequest
- Googlesheets
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