Import CSV from URL to GoogleSheet
工作流概述
这是一个包含7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": "NLVfecejH0cTtcdd",
"meta": {
"instanceId": "fb924c73af8f703905bc09c9ee8076f48c17b596ed05b18c0ff86915ef8a7c4a"
},
"name": "Import CSV from URL to GoogleSheet",
"tags": [],
"nodes": [
{
"id": "90cced3d-b03b-4b51-b1f7-4cbd2dac25eb",
"name": "When clicking \"Execute Workflow\"",
"type": "n8n-nodes-base.manualTrigger",
"position": [
860,
380
],
"parameters": {},
"typeVersion": 1
},
{
"id": "df9519b6-937e-4a9e-bdb9-86fb722ca3c1",
"name": "Upload to spreadsheet",
"type": "n8n-nodes-base.googleSheets",
"position": [
1880,
380
],
"parameters": {
"columns": {
"value": {},
"schema": [
{
"id": "unique_key",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "unique_key",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "country",
"type": "string",
"display": true,
"required": false,
"displayName": "country",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "country_code",
"type": "string",
"display": true,
"required": false,
"displayName": "country_code",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "year_week",
"type": "string",
"display": true,
"required": false,
"displayName": "year_week",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "level",
"type": "string",
"display": true,
"required": false,
"displayName": "level",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "region",
"type": "string",
"display": true,
"required": false,
"displayName": "region",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "region_name",
"type": "string",
"display": true,
"required": false,
"displayName": "region_name",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "new_cases",
"type": "string",
"display": true,
"required": false,
"displayName": "new_cases",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "tests_done",
"type": "string",
"display": true,
"required": false,
"displayName": "tests_done",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "population",
"type": "string",
"display": true,
"required": false,
"displayName": "population",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "testing_rate",
"type": "string",
"display": true,
"required": false,
"displayName": "testing_rate",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "positivity_rate",
"type": "string",
"display": true,
"required": false,
"displayName": "positivity_rate",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "testing_data_source",
"type": "string",
"display": true,
"required": false,
"displayName": "testing_data_source",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "autoMapInputData",
"matchingColumns": [
"unique_key"
]
},
"options": {
"cellFormat": "USER_ENTERED"
},
"operation": "appendOrUpdate",
"sheetName": {
"__rl": true,
"mode": "list",
"value": 383583634,
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/13YYuEJ1cDf-t8P2MSTFWnnNHCreQ6Zo8oPSp7WeNnbY/edit#gid=383583634",
"cachedResultName": "COVID-weekly"
},
"documentId": {
"__rl": true,
"mode": "url",
"value": "https://docs.google.com/spreadsheets/d/13YYuEJ1cDf-t8P2MSTFWnnNHCreQ6Zo8oPSp7WeNnbY"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "54",
"name": "Google Sheets account"
}
},
"typeVersion": 4
},
{
"id": "8298b29e-8784-4e15-902f-dc073fa73668",
"name": "Add unique field",
"type": "n8n-nodes-base.set",
"position": [
1460,
380
],
"parameters": {
"fields": {
"values": [
{
"name": "unique_key",
"stringValue": "={{ $json.country_code }}-{{ $json.year_week }}"
}
]
},
"options": {}
},
"typeVersion": 3
},
{
"id": "b71bb998-4df2-4311-ae98-42c3e5e41d58",
"name": "Import CSV",
"type": "n8n-nodes-base.spreadsheetFile",
"position": [
1260,
380
],
"parameters": {
"options": {
"headerRow": true
},
"fileFormat": "csv"
},
"typeVersion": 2
},
{
"id": "36204081-3995-46d4-ac8f-3408cbaed657",
"name": "Download CSV",
"type": "n8n-nodes-base.httpRequest",
"position": [
1060,
380
],
"parameters": {
"url": "https://opendata.ecdc.europa.eu/covid19/testing/csv/data.csv",
"options": {
"response": {
"response": {
"responseFormat": "file"
}
}
}
},
"typeVersion": 4.1
},
{
"id": "b1a78d2e-1a8b-4d98-b130-080b3017192d",
"name": "Keep only DACH in 2023",
"type": "n8n-nodes-base.filter",
"position": [
1680,
380
],
"parameters": {
"conditions": {
"string": [
{
"value1": "={{ $json.year_week }}",
"value2": "2023",
"operation": "startsWith"
}
],
"boolean": [
{
"value1": "={{ ['DE', 'AT', 'CH'].includes($json.country_code )}}",
"value2": true
}
]
}
},
"typeVersion": 1
},
{
"id": "c5a3af9b-30a0-4337-bbb7-cff54007b22f",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
1620,
241
],
"parameters": {
"width": 460,
"height": 293,
"content": "### Google API has rate-limits for read and write operations, that's why we take only a subset of the data
To import the whole dataset please add Split In Batches and a Wait node with a sufficient delay."
},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "d49a3f54-a422-4e76-b410-f8c12b4dd78b",
"connections": {
"Import CSV": {
"main": [
[
{
"node": "Add unique field",
"type": "main",
"index": 0
}
]
]
},
"Download CSV": {
"main": [
[
{
"node": "Import CSV",
"type": "main",
"index": 0
}
]
]
},
"Add unique field": {
"main": [
[
{
"node": "Keep only DACH in 2023",
"type": "main",
"index": 0
}
]
]
},
"Keep only DACH in 2023": {
"main": [
[
{
"node": "Upload to spreadsheet",
"type": "main",
"index": 0
}
]
]
},
"When clicking \"Execute Workflow\"": {
"main": [
[
{
"node": "Download CSV",
"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
- Manualtrigger
- Googlesheets
- Set
- Spreadsheetfile
- Httprequest
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