Auto-Tag Blog Posts in WordPress with AI
工作流概述
这是一个包含32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
{
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"meta": {
"instanceId": "a9f3b18652ddc96459b459de4fa8fa33252fb820a9e5a1593074f3580352864a",
"templateCredsSetupCompleted": true
},
"name": "Auto-Tag Blog Posts in WordPress with AI",
"tags": [
{
"id": "ijuVOmJpw5mCrzQX",
"name": "marketing",
"createdAt": "2025-01-28T16:42:03.029Z",
"updatedAt": "2025-01-28T16:42:03.029Z"
}
],
"nodes": [
{
"id": "0561d80b-f360-4a8e-930d-49b778833991",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
3260,
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],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "yWpagxp5s8o3dlBp",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "d71aec64-299c-4258-8eb4-95821d15b758",
"name": "Auto-fixing Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserAutofixing",
"position": [
3460,
540
],
"parameters": {},
"typeVersion": 1
},
{
"id": "1468a001-ca7b-4726-ae31-02b28d78b07e",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
3360,
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],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "yWpagxp5s8o3dlBp",
"name": "OpenAi account"
}
},
"typeVersion": 1
},
{
"id": "bb4221ad-94d7-4543-850f-87b83735d2a6",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
3560,
760
],
"parameters": {
"jsonSchemaExample": "{
\"tags\": [\"Germany\", \"Technology\", \"Workflow Automation\"]
}"
},
"typeVersion": 1.2
},
{
"id": "2380c4ea-d804-45b2-8341-417afa2ae21f",
"name": "RSS Feed Trigger",
"type": "n8n-nodes-base.rssFeedReadTrigger",
"position": [
3140,
320
],
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
}
},
"typeVersion": 1
},
{
"id": "782e9c61-7d51-499b-89b2-888415c5116e",
"name": "Return article details",
"type": "n8n-nodes-base.set",
"position": [
4140,
320
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "ebe28fc7-f166-4428-b3f3-b319f2d080df",
"name": "tag_ids",
"type": "array",
"value": "={{ $json.tag_ids }}"
},
{
"id": "bc296683-2a93-42b4-a9a7-90a2bc22f37b",
"name": "title",
"type": "string",
"value": "={{ $('MOCK article').item.json.title }}"
},
{
"id": "32dc0950-3708-447e-a3b6-a5c5ae9bdcd0",
"name": "content",
"type": "string",
"value": "={{ $('MOCK article').item.json.content }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "6b5ce61f-8351-40ab-9e63-51c3e85ce53d",
"name": "Split Out",
"type": "n8n-nodes-base.splitOut",
"position": [
2200,
840
],
"parameters": {
"options": {
"destinationFieldName": "missing_tag"
},
"fieldToSplitOut": "missing_tags"
},
"typeVersion": 1
},
{
"id": "2338e3e8-cba4-48c8-8c1a-50019af70932",
"name": "Loop over articles",
"type": "n8n-nodes-base.splitInBatches",
"position": [
1980,
320
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "39b89004-6032-4d22-8bcc-3dfd1d793ed0",
"name": "SET initial record",
"type": "n8n-nodes-base.set",
"position": [
2200,
440
],
"parameters": {
"options": {},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "ec0b93cb-de9d-41be-9d4b-6846d3ee14a2",
"name": "GET WP tags",
"type": "n8n-nodes-base.httpRequest",
"position": [
2440,
440
],
"parameters": {
"url": "https://www.example.com/wp-json/wp/v2/tags",
"options": {},
"authentication": "predefinedCredentialType",
"nodeCredentialType": "wordpressApi"
},
"credentials": {
"wordpressApi": {
"id": "XXXXXXX",
"name": "Example"
}
},
"executeOnce": true,
"typeVersion": 4.2,
"alwaysOutputData": true
},
{
"id": "cbabadef-9f5f-4402-8bd7-255f5c237ff9",
"name": "POST WP tags",
"type": "n8n-nodes-base.httpRequest",
"position": [
2420,
840
],
"parameters": {
"url": "https://www.example.com/wp-json/wp/v2/tags",
"method": "POST",
"options": {},
"sendQuery": true,
"authentication": "predefinedCredentialType",
"queryParameters": {
"parameters": [
{
"name": "slug",
"value": "={{ $json.missing_tag }}"
},
{
"name": "name",
"value": "={{ $json.missing_tag.replaceAll(\"-\",\" \").toTitleCase() }}"
}
]
},
"nodeCredentialType": "wordpressApi"
},
"credentials": {
"wordpressApi": {
"id": "XXXXXXX",
"name": "Example"
}
},
"executeOnce": false,
"typeVersion": 4.2
},
{
"id": "6bf40d39-4b42-413f-9502-3ca494f75bcb",
"name": "GET updated WP tags",
"type": "n8n-nodes-base.httpRequest",
"position": [
2700,
840
],
"parameters": {
"url": "https://www.example.com/wp-json/wp/v2/tags",
"options": {},
"authentication": "predefinedCredentialType",
"nodeCredentialType": "wordpressApi"
},
"credentials": {
"wordpressApi": {
"id": "XXXXXXX",
"name": "Example"
}
},
"executeOnce": true,
"typeVersion": 4.2
},
{
"id": "aea9a631-0cd8-4ed8-9fb1-981b8e11f3dd",
"name": "Keep matches",
"type": "n8n-nodes-base.filter",
"position": [
2200,
1040
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "8ec4fdfc-73f3-4d7b-96e4-f42a18252599",
"operator": {
"type": "array",
"operation": "contains",
"rightType": "any"
},
"leftValue": "={{ $('SET initial record').first().json.tags.map(item => item.toLowerCase().replaceAll(\" \",\"-\")) }}",
"rightValue": "={{ $json.slug }}"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "6d71d7a5-495d-4809-b66f-9f1cba0d11c6",
"name": "Combine tag_ids",
"type": "n8n-nodes-base.aggregate",
"position": [
2420,
1040
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{
"renameField": true,
"outputFieldName": "tag_ids",
"fieldToAggregate": "id"
}
]
}
},
"typeVersion": 1
},
{
"id": "dc3cac68-dee8-4821-963b-b0594d1a7e0e",
"name": "Combine slugs",
"type": "n8n-nodes-base.aggregate",
"position": [
2700,
440
],
"parameters": {
"options": {},
"fieldsToAggregate": {
"fieldToAggregate": [
{
"renameField": true,
"outputFieldName": "tags",
"fieldToAggregate": "slug"
}
]
}
},
"typeVersion": 1
},
{
"id": "8e0f668c-e3ac-4d70-9ffb-5515e6221c62",
"name": "If",
"type": "n8n-nodes-base.if",
"position": [
2440,
640
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "8d77d072-cb47-4fbb-831a-0e6f3ecefc71",
"operator": {
"type": "array",
"operation": "empty",
"singleValue": true
},
"leftValue": "={{ $json.missing_tags }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "7988188d-07e6-4a36-94f2-e21d7677802e",
"name": "MOCK article",
"type": "n8n-nodes-base.set",
"position": [
3740,
320
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "4a69cf1b-341a-40bc-a36a-b76c05bdd819",
"name": "title",
"type": "string",
"value": "={{ $('RSS Feed Trigger').item.json.title }}"
},
{
"id": "63097eb0-6165-4365-a5b5-e9f3de65d715",
"name": "content",
"type": "string",
"value": "={{ $('RSS Feed Trigger').item.json.content }}"
},
{
"id": "ae4859ec-ad14-403e-b5b6-53703fefe3f3",
"name": "categories",
"type": "array",
"value": "={{ $('RSS Feed Trigger').item.json.categories }}"
},
{
"id": "3f94d5ac-5196-4ad0-acea-79c07b0ee2c6",
"name": "tags",
"type": "array",
"value": "={{ $json.output.tags }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "4578cb14-dc86-4bc4-8d59-f0c088574164",
"name": "Return missing tags",
"type": "n8n-nodes-base.code",
"position": [
2200,
640
],
"parameters": {
"jsCode": "const new_ary = $('SET initial record').first().json.tags.map(x => x.toLowerCase().replaceAll(\" \",\"-\")).filter(x => !$input.first().json.tags.includes(x))
return {\"missing_tags\": new_ary};"
},
"typeVersion": 2
},
{
"id": "91c8dde5-58ce-4bf6-ac3c-0062cbf0046e",
"name": "Wordpress",
"type": "n8n-nodes-base.wordpress",
"position": [
4360,
320
],
"parameters": {
"title": "=Demo tagging post: {{ $json.title }}",
"additionalFields": {
"tags": "={{ $json.tag_ids }}",
"content": "=This is a post to demo automatic tagging a WordPress postvia n8n. The following content could be rewritten in full or part with commentary using AI.
{{ $json.content }}"
}
},
"credentials": {
"wordpressApi": {
"id": "XXXXXXX",
"name": "Example"
}
},
"typeVersion": 1
},
{
"id": "8257534e-f433-4225-a795-230fd367cc01",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
3000,
200
],
"parameters": {
"color": 7,
"width": 1673.0029952487134,
"height": 1061.6563737812796,
"content": "## Demo Usage in Another Workflow (Tagging an article discovered with an RSS feed)"
},
"typeVersion": 1
},
{
"id": "b14e6fda-c569-4ada-90d9-77b61049c531",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1680,
198.96245932022566
],
"parameters": {
"color": 7,
"width": 1243.102096674096,
"height": 1077.24135750937,
"content": "## Auto-Tag Posts in WordPress
This workflow allows you to hand off the responsibility of tagging content for WordPress to an AI Agent in n8n with no data entry required."
},
"typeVersion": 1
},
{
"id": "21420d0f-a5c9-4eac-b6d9-06d3a6de5fb9",
"name": "Demo Usage in Another Workflow",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
1780,
320
],
"parameters": {},
"typeVersion": 1
},
{
"id": "7571b196-3827-478f-b032-84d99adf4aa8",
"name": "Auto-Tag Posts in WordPress",
"type": "n8n-nodes-base.executeWorkflow",
"position": [
3940,
320
],
"parameters": {
"mode": "each",
"options": {},
"workflowId": {
"__rl": true,
"mode": "id",
"value": "siXUnQhJpCJ9rHzu"
}
},
"typeVersion": 1.1
},
{
"id": "e5b63f63-09a6-452d-9d26-8501fc49d7fe",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
2640,
140
],
"parameters": {
"color": 5,
"width": 256.62869115182394,
"height": 146.4958582739091,
"content": "## Copy this workflow
You can use it inline by removing the Called by Another Workflow trigger, or as-is as a subworkflow"
},
"typeVersion": 1
},
{
"id": "2ea9fbdd-b492-4030-b640-227a163d70ef",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
3040,
980
],
"parameters": {
"width": 409.8780943583022,
"height": 248.2919292392927,
"content": "Handing off tagging and categorization fully to AI lets you **put your WordPress account on autopilot** without a human-in-the-loop.
In this example the application is use-case agnostic, but with this workflow you can:
1. Use AI to rewrite content with original thoughts and tags
2. Ensure healthy information architecture on your site
3. Quickly generate multivariate tag and category combinations for optimal SEO"
},
"typeVersion": 1
},
{
"id": "57cfa462-fc71-4173-b7c9-8253c4e240d1",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
3900,
500
],
"parameters": {
"color": 3,
"width": 369.61896876326364,
"height": 103.91486928512641,
"content": "### To ensure data can be passed to subsequent nodes, make sure to select \"Run Once for Each Item\" if executing a subworkflow"
},
"typeVersion": 1
},
{
"id": "7f1dfade-07be-49b7-b5ee-99b58f1e6cc7",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
2640,
660
],
"parameters": {
"color": 6,
"width": 211.8330719827787,
"content": "## What's this?
If there are missing tags we create them in WP, otherwise we keep get them all from WP and keep the relevant ones."
},
"typeVersion": 1
},
{
"id": "61711c71-3e45-4b06-80a8-b651177b585d",
"name": "Sticky Note6",
"type": "n8n-nodes-base.stickyNote",
"position": [
1960,
540
],
"parameters": {
"color": 3,
"width": 174.33565557367925,
"height": 251.80401948434695,
"content": "## What's this?
One of the few potential failure points in this workflow, when checking for missing tags it's important that both the generated tags and the existing tags are in the same case (snake, dash, title)."
},
"typeVersion": 1
},
{
"id": "31db85c9-e4c2-4409-9d92-7eb005223de0",
"name": "Generate tags for article",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"position": [
3360,
320
],
"parameters": {
"text": "=Please provide 3-5 suitable tags for the following article:
{{ $json.content }}
Tag Formatting Rules:
1. Tags should be in title case",
"promptType": "define",
"hasOutputParser": true
},
"typeVersion": 1.4
},
{
"id": "7d6eac92-6f6f-44a4-8dce-0830440a9dff",
"name": "Sticky Note7",
"type": "n8n-nodes-base.stickyNote",
"position": [
1600,
1040
],
"parameters": {
"width": 285.2555025627061,
"content": "## ! A note about cases !
If you want your tags to follow a different case than I am using (dash case for slug, title case for name), then you will need to update a few nodes in this workflow."
},
"typeVersion": 1
},
{
"id": "133be2f7-071b-4651-b3b5-8052a64b7f49",
"name": "Sticky Note8",
"type": "n8n-nodes-base.stickyNote",
"position": [
2600,
1200
],
"parameters": {
"color": 5,
"width": 296.01271681531176,
"content": "## Ready for a challenge?
Make this subworkflow executable for both categories and tags, accounting for different API calls to different endpoints."
},
"typeVersion": 1
},
{
"id": "7807e967-ac3d-4a4d-bd9d-f123d57e1676",
"name": "Sticky Note9",
"type": "n8n-nodes-base.stickyNote",
"position": [
4400,
1155.7364351382535
],
"parameters": {
"color": 4,
"width": 244.3952545193282,
"height": 87.34661077350344,
"content": "## About the maker
**[Find Ludwig Gerdes on LinkedIn](https://www.linkedin.com/in/ludwiggerdes)**"
},
"typeVersion": 1
}
],
"active": false,
"pinData": {
"Generate tags for article": [
{
"json": {
"output": {
"tags": [
"Team Achievements",
"Global Community",
"Product Growth",
"2024 Highlights",
"Reflecting on Progress"
]
}
}
}
]
},
"settings": {
"executionOrder": "v1"
},
"versionId": "3acdf19c-288e-4a3b-87ae-5adbf44285fe",
"connections": {
"If": {
"main": [
[
{
"node": "GET updated WP tags",
"type": "main",
"index": 0
}
],
[
{
"node": "Split Out",
"type": "main",
"index": 0
}
]
]
},
"Split Out": {
"main": [
[
{
"node": "POST WP tags",
"type": "main",
"index": 0
}
]
]
},
"GET WP tags": {
"main": [
[
{
"node": "Combine slugs",
"type": "main",
"index": 0
}
]
]
},
"Keep matches": {
"main": [
[
{
"node": "Combine tag_ids",
"type": "main",
"index": 0
}
]
]
},
"MOCK article": {
"main": [
[
{
"node": "Auto-Tag Posts in WordPress",
"type": "main",
"index": 0
}
]
]
},
"POST WP tags": {
"main": [
[
{
"node": "GET updated WP tags",
"type": "main",
"index": 0
}
]
]
},
"Combine slugs": {
"main": [
[
{
"node": "Return missing tags",
"type": "main",
"index": 0
}
]
]
},
"Combine tag_ids": {
"main": [
[
{
"node": "Loop over articles",
"type": "main",
"index": 0
}
]
]
},
"RSS Feed Trigger": {
"main": [
[
{
"node": "Generate tags for article",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "Generate tags for article",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Loop over articles": {
"main": [
[],
[
{
"node": "SET initial record",
"type": "main",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Auto-fixing Output Parser",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"SET initial record": {
"main": [
[
{
"node": "GET WP tags",
"type": "main",
"index": 0
}
]
]
},
"GET updated WP tags": {
"main": [
[
{
"node": "Keep matches",
"type": "main",
"index": 0
}
]
]
},
"Return missing tags": {
"main": [
[
{
"node": "If",
"type": "main",
"index": 0
}
]
]
},
"Return article details": {
"main": [
[
{
"node": "Wordpress",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Auto-fixing Output Parser",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Auto-fixing Output Parser": {
"ai_outputParser": [
[
{
"node": "Generate tags for article",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Generate tags for article": {
"main": [
[
{
"node": "MOCK article",
"type": "main",
"index": 0
}
]
]
},
"Auto-Tag Posts in WordPress": {
"main": [
[
{
"node": "Return article details",
"type": "main",
"index": 0
}
]
]
},
"Demo Usage in Another Workflow": {
"main": [
[
{
"node": "Loop over articles",
"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
- @N8N/N8N Nodes Langchain.Lmchatopenai
- @N8N/N8N Nodes Langchain.Outputparserautofixing
- @N8N/N8N Nodes Langchain.Outputparserstructured
- Rssfeedreadtrigger
- Set
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