Chatbot AI
工作流概述
这是一个包含14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": "ghfbOYrOSiQVAbl5",
"meta": {
"instanceId": "558d88703fb65b2d0e44613bc35916258b0f0bf983c5d4730c00c424b77ca36a"
},
"name": "Chatbot AI",
"tags": [],
"nodes": [
{
"id": "6eec6665-eea6-4aaa-8ae5-2fc7bf0c4746",
"name": "Loading Animation",
"type": "n8n-nodes-base.httpRequest",
"position": [
-520,
340
],
"parameters": {
"url": "https://api.line.me/v2/bot/chat/loading/start",
"body": "={
\"chatId\": \"{{ $json.body.events[0].source.userId }}\",
\"loadingSeconds\": 60
}",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "raw",
"authentication": "genericCredentialType",
"rawContentType": "application/json",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "PQI3F0ibV3txKWfv",
"name": "Talking Therapy Line@"
}
},
"typeVersion": 4.2
},
{
"id": "72ff06e5-e1d8-47e7-be15-888ec9171c72",
"name": "ReplyMessage - Not supported",
"type": "n8n-nodes-base.httpRequest",
"position": [
100,
760
],
"parameters": {
"url": "https://api.line.me/v2/bot/message/reply",
"body": "={
\"replyToken\":\"{{ $('Line Chatbot').item.json.body.events[0].replyToken }}\",
\"messages\":[
{
\"type\":\"text\",
\"text\":\"Currently, the input of image or other type are not supported.\"
}
]
}",
"method": "POST",
"options": {},
"sendBody": true,
"contentType": "raw",
"sendHeaders": true,
"rawContentType": "application/json",
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer /lQWKI4dp71pOMWZu2q18mL8P+zwf9iIOBzUDQOPMqLGMMIg88J6jPcFGfZ2ntsFfaiwCKTEcAsMjliZYXrV5E4lsjioJmv2hS7XYbh8lxmuyz1vXegKwAT66hTIBjQ1zf4l6yKugYNsUmwSYfCSQgdB04t89/1O/w1cDnyilFU="
}
]
}
},
"typeVersion": 4.2
},
{
"id": "3a4eb71f-033d-4aff-a4fd-2ed14ea80c6c",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
40,
80
],
"parameters": {
"text": "={{ $('Line Chatbot').item.json.body.events[0].message.text }}",
"options": {
"systemMessage": "You're CBT therapist. You'll help the user find the answer to their problems using CBT. but you will not tell them that you're using CBT
CBT is a talking therapy. Talking therapies are also known as psychotherapies. You can find out more about these on our information page on psychotherapies and psychological treatments.
CBT helps you to learn more helpful ways of thinking and reacting in everyday situations. Changing the way you think, and what you do, can help you to feel better.
Unlike some other talking therapies, CBT focuses on your current challenges rather than on your past experiences. It aims to improve your state of mind by teaching you to spot the links between your thoughts, actions and feelings.
C stands for ‘cognitive’ (what you think) – In CBT, you learn to notice when you are thinking negatively. You work to challenge negative or unhelpful thoughts, for example:
-‘I’m useless’ or
-‘It’s all going to go wrong’.
Instead, you work to develop more useful, realistic thoughts, for example:
-‘What’s the evidence this is true?’
-‘What’s another way to think about this?’ or
-‘What advice would I give a friend in my situation?’
B stands for ‘behaviour’ (what you do) – Your behaviour is what you do and how you act. CBT can help you to deal with things you have been avoiding or have fears around. When doing CBT, you might keep a daily diary of activities, and set goals to try things that you are afraid of doing. Writing down your goals and actions can give you a sense of achievement and help you to mark your progress.
T stands for ‘therapy’ (what you learn) – Through CBT you learn new skills that you can then practise as ‘homework’. After you have finished receiving CBT you can continue to practise these skills, which can give you the tools to stay well in the future.
CBT can help you to make sense of overwhelming problems by breaking them down into smaller parts. This makes it easier to see how they are connected and how they affect you. These parts are:
A situation – for example, an activity, or something that happens to you that you find difficult
From this can follow:
-Thoughts
-Emotions
-Physical feelings
-Actions
Types of CBT
- Cognitive therapy : Spot unhelpful thoughts and beliefs. Keep a record and try out more useful and realistic ways of thinking and reacting.
- Behaviour therapy (e.g., graded exposure) : Change unhelpful behaviours, like avoiding, checking, or getting reassurance. Gradually face situations, thoughts, or memories you’ve been avoiding.
- Behavioural activation: Get more active and involved in life by doing things that give a sense of pleasure or achievement. Keep a diary and schedule in positive activities.
- Problem-solving therapy: Identify the problem, come up with ways of solving it, pick one solution, and put it into practice.
- Motivational interviewing: Look at the pros and cons of a habit. Set goals for change.
- Mindfulness : Pay attention to your thoughts and surroundings in the here and now without reacting to them.
- Compassionate mind therapy : Be kinder and less critical of yourself and others, helping you to feel safer and more content.
- Acceptance and commitment therapy (ACT, pronounced ‘act’) : Accept unpleasant thoughts and feelings rather than fight them or get upset.
- Dialectical behaviour therapy (DBT) :Manage strong feelings and sudden mood changes to overcome relationship difficulties. Combines one-to-one CBT with group therapy.
- Cognitive analytic therapy : Understand past causes for current difficulties and find new ways of coping. Combines CBT with analytic therapy.
Reference: https://www.rcpsych.ac.uk/mental-health/treatments-and-wellbeing/cognitive-behavioural-therapy-(cbt)?spm=5aebb161.59ab0a80.0.0.3380c921WQnNWN
You'll keep the character limit under 500"
},
"promptType": "define"
},
"typeVersion": 1.7
},
{
"id": "7a92aeaf-3496-410f-a6fd-4be5172b650e",
"name": "Azure OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatAzureOpenAi",
"position": [
80,
200
],
"parameters": {
"model": "4o",
"options": {}
},
"credentials": {
"azureOpenAiApi": {
"id": "5AjoWhww5SQi2VXd",
"name": "Azure Open AI account"
}
},
"typeVersion": 1
},
{
"id": "36df34d5-4232-40c8-b0ca-de7e30807adc",
"name": "ReplyMessage - Line",
"type": "n8n-nodes-base.httpRequest",
"position": [
920,
80
],
"parameters": {
"url": "https://api.line.me/v2/bot/message/reply",
"method": "POST",
"options": {},
"jsonBody": "={
\"replyToken\": \"{{ $('Line Chatbot').item.json.body.events[0].replyToken }}\",
\"messages\": [
{
\"type\": \"text\",
\"text\": \"{{ $json.output }}\"
}
]} ",
"sendBody": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "PQI3F0ibV3txKWfv",
"name": "Talking Therapy Line@"
}
},
"typeVersion": 4.2
},
{
"id": "c3e227dd-3306-4259-ad7a-c1911c3c5176",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
680
],
"parameters": {
"color": 4,
"width": 320,
"height": 260,
"content": "For non-text, we do not process and just provide user that it's not supported right now"
},
"typeVersion": 1
},
{
"id": "fba0b833-896e-4332-97e5-fa09a3838191",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1000,
280
],
"parameters": {
"color": 4,
"width": 340,
"height": 560,
"content": "**Webhook from Line**
You need to set-up this webhook at Line Manager or Line Developer Console
You'll need to copy Webhook URL from this node to put in Line Console
Also, don't forget to remove 'test' part when going for production
https://developers.line.biz/en/docs/messaging-api/receiving-messages/
"
},
"typeVersion": 1
},
{
"id": "f58d7af5-70c4-412a-a8f6-6cfceaf65ade",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-640,
280
],
"parameters": {
"color": 4,
"width": 340,
"height": 560,
"content": "**Line Loading Animation**
This node is to only give ... loading animation back in Line.
It seems stupid but it actually tells user that the workflow is running and you are not left waiting without hope
To authorize, use header authorization
https://developers.line.biz/en/docs/messaging-api/use-loading-indicator/"
},
"typeVersion": 1
},
{
"id": "7c67d79d-e2b8-453c-8adc-cb66e6ef290c",
"name": "Line Chatbot",
"type": "n8n-nodes-base.webhook",
"position": [
-900,
340
],
"webhookId": "c69b940a-5a44-45e3-b9b4-04abda6462b2",
"parameters": {
"path": "AIChatbot",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 2
},
{
"id": "a44319cf-d985-4bbf-be99-ac479406c369",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
820,
0
],
"parameters": {
"color": 4,
"width": 320,
"height": 600,
"content": "**Reply Message**
You can send anything with reply-token without using your broadcast quota.
To use header auth:
- select generic > header auth
- add new
- name = Authorization
- value = Bearer <your token>
- you can rename this credential on top
https://developers.line.biz/en/docs/messaging-api/sending-messages/"
},
"typeVersion": 1
},
{
"id": "1cfa159b-57c6-424a-a9e2-4b237a0bcbb5",
"name": "Check Message Type IsText?",
"type": "n8n-nodes-base.if",
"position": [
-220,
340
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "e44288a5-18de-48b3-9bb1-0e18f6491043",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $('Line Chatbot').item.json.body.events[0].message.type }}",
"rightValue": "text"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "48363222-487e-4d4a-a424-4406aacc7f74",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
400,
0
],
"parameters": {
"color": 2,
"width": 320,
"height": 320,
"content": "The output from AI-Agent is not properly formatted for JSON to send via reply. So you need to edit it a bit
"
},
"typeVersion": 1
},
{
"id": "d7b7d3ca-c685-4a02-8b73-a5b24aa663d4",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
0,
0
],
"parameters": {
"color": 5,
"width": 320,
"height": 620,
"content": "**Chat Model (LLM)**
To use chat LLM, you need to have AI Agent or LLM Chain. Then you can connect the model to the node.
- edit system prompt on the mother node.
- edit model parameters eg. temperature at the AI node (closer to 1 = more creative)
Azure OpenAI Ref : https://davoy.tech/how-to-use-azure-openai-2/
Or you can choose different models"
},
"typeVersion": 1
},
{
"id": "8cb1b56a-15dd-4936-b343-c2350b2a6a48",
"name": "Format Reply",
"type": "n8n-nodes-base.set",
"position": [
500,
80
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "15bd9ebd-ba6b-4ee5-9f4b-185260e51b0a",
"name": "output",
"type": "string",
"value": "={{ $json.output.replaceAll(\"\n\",\"\\n\").replaceAll(\"\n\",\"\").removeMarkdown().removeTags().replaceAll('\"',\"\") }}"
}
]
}
},
"typeVersion": 3.4
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "cca20e40-0b31-4e64-9953-610dc6b569d7",
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Format Reply",
"type": "main",
"index": 0
}
]
]
},
"Format Reply": {
"main": [
[
{
"node": "ReplyMessage - Line",
"type": "main",
"index": 0
}
]
]
},
"Line Chatbot": {
"main": [
[
{
"node": "Loading Animation",
"type": "main",
"index": 0
}
]
]
},
"Loading Animation": {
"main": [
[
{
"node": "Check Message Type IsText?",
"type": "main",
"index": 0
}
]
]
},
"Azure OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Check Message Type IsText?": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
],
[
{
"node": "ReplyMessage - Not supported",
"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
- Httprequest
- @N8N/N8N Nodes Langchain.Agent
- @N8N/N8N Nodes Langchain.Lmchatazureopenai
- Stickynote
- Webhook
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