screenshot
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": "105",
"name": "screenshot",
"nodes": [
{
"name": "On clicking 'execute'",
"type": "n8n-nodes-base.manualTrigger",
"position": [
440,
580
],
"parameters": {},
"typeVersion": 1
},
{
"name": "Create Web + Email Item",
"type": "n8n-nodes-base.functionItem",
"position": [
630,
580
],
"parameters": {
"functionCode": "item.website = \"https://uproc.io\";
item.email = \"miquel@uproc.io\";
return item;"
},
"typeVersion": 1
},
{
"name": "Send Email",
"type": "n8n-nodes-base.awsSes",
"position": [
1660,
600
],
"parameters": {
"body": "=Hi,
<br><br>
These are your screenshots:<br>
<table border=\"0\">
<tr>
<th>Simple screenshot</th><th>Fullpage screenshot</th>
<tr>
<td style=\"vertical-align: top; text-align: center\"><img src=\"{{$node[\"Generate Screenshot\"].json[\"message\"][\"result\"]}}\" width=\"320\"></td>
<td style=\"vertical-align: top; text-align: center\"><img src=\"{{$node[\"Generate FullPage\"].json[\"message\"][\"result\"]}}\" width=\"320\"></td>
</tr>
</table>
<br><br>
Thank you!",
"subject": "Your screenshots!",
"fromEmail": "miquel@uproc.io",
"isBodyHtml": true,
"toAddresses": [
"={{$node[\"Create Web + Email Item\"].json[\"email\"]}}"
],
"additionalFields": {}
},
"credentials": {
"aws": "ses"
},
"typeVersion": 1
},
{
"name": "Generate FullPage",
"type": "n8n-nodes-base.uproc",
"position": [
850,
510
],
"parameters": {
"url": "={{$node[\"Create Web + Email Item\"].json[\"website\"]}}",
"tool": "getUrlScreenshot",
"group": "image",
"width": "640",
"fullpage": "yes",
"additionalOptions": {}
},
"credentials": {
"uprocApi": "miquel-uproc"
},
"typeVersion": 1
},
{
"name": "Generate Screenshot",
"type": "n8n-nodes-base.uproc",
"position": [
840,
680
],
"parameters": {
"url": "={{$node[\"Create Web + Email Item\"].json[\"website\"]}}",
"tool": "getUrlScreenshot",
"group": "image",
"width": "640",
"fullpage": "no",
"additionalOptions": {}
},
"credentials": {
"uprocApi": "miquel-uproc"
},
"typeVersion": 1
},
{
"name": "Get File",
"type": "n8n-nodes-base.httpRequest",
"position": [
1050,
510
],
"parameters": {
"url": "={{$node[\"Generate FullPage\"].json[\"message\"][\"result\"]}}",
"options": {},
"responseFormat": "file",
"allowUnauthorizedCerts": true
},
"typeVersion": 1
},
{
"name": "Get File1",
"type": "n8n-nodes-base.httpRequest",
"position": [
1050,
680
],
"parameters": {
"url": "={{$node[\"Generate Screenshot\"].json[\"message\"][\"result\"]}}",
"options": {},
"responseFormat": "file",
"allowUnauthorizedCerts": true
},
"typeVersion": 1
},
{
"name": "Merge",
"type": "n8n-nodes-base.merge",
"position": [
1460,
600
],
"parameters": {
"mode": "passThrough"
},
"typeVersion": 1
},
{
"name": "Upload Screenshot",
"type": "n8n-nodes-base.dropbox",
"position": [
1270,
680
],
"parameters": {
"path": "/screenshots/sample.png",
"binaryData": true
},
"credentials": {
"dropboxApi": "dropbox-miquel"
},
"typeVersion": 1
},
{
"name": "Upload fullpage",
"type": "n8n-nodes-base.dropbox",
"position": [
1270,
510
],
"parameters": {
"path": "/screenshots/sample_fullpage.png",
"binaryData": true
},
"credentials": {
"dropboxApi": "dropbox-miquel"
},
"typeVersion": 1
}
],
"active": false,
"settings": {},
"connections": {
"Merge": {
"main": [
[
{
"node": "Send Email",
"type": "main",
"index": 0
}
]
]
},
"Get File": {
"main": [
[
{
"node": "Upload fullpage",
"type": "main",
"index": 0
}
]
]
},
"Get File1": {
"main": [
[
{
"node": "Upload Screenshot",
"type": "main",
"index": 0
}
]
]
},
"Upload fullpage": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 0
}
]
]
},
"Generate FullPage": {
"main": [
[
{
"node": "Get File",
"type": "main",
"index": 0
}
]
]
},
"Upload Screenshot": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 1
}
]
]
},
"Generate Screenshot": {
"main": [
[
{
"node": "Get File1",
"type": "main",
"index": 0
}
]
]
},
"On clicking 'execute'": {
"main": [
[
{
"node": "Create Web + Email Item",
"type": "main",
"index": 0
}
]
]
},
"Create Web + Email Item": {
"main": [
[
{
"node": "Generate FullPage",
"type": "main",
"index": 0
},
{
"node": "Generate Screenshot",
"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
- Functionitem
- Awsses
- Uproc
- 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