基于 Webhook、Pinecone + OpenAI + n8n 的智能文档问答系统
高级
这是一个Internal Wiki, AI RAG领域的自动化工作流，包含 30 个节点。主要使用 Webhook, GoogleDrive, ManualTrigger, Agent, RespondToWebhook 等节点。 基于OpenAI GPT、Pinecone向量数据库和Google Drive集成的文档问答系统
前置要求
- •HTTP Webhook 端点（n8n 会自动生成）
- •Google Drive API 凭证
- •OpenAI API Key
- •Pinecone API Key
使用的节点 (30)
工作流预览
可视化展示节点连接关系，支持缩放和平移
导出工作流
复制以下 JSON 配置到 n8n 导入，即可使用此工作流
{
"id": "UVMlpwIIsDBBFclU",
"meta": {
"instanceId": "92e36925b2d06addd7a010605535ce53ac105737436355f7e52e2980c726ed3d",
"templateCredsSetupCompleted": true
},
"name": "基于 Webhook、Pinecone + OpenAI + n8n 的智能文档问答系统",
"tags": [
{
"id": "Bv4R1pgV3YCnUGME",
"name": "webhook",
"createdAt": "2025-07-04T05:26:19.837Z",
"updatedAt": "2025-07-04T05:26:19.837Z"
},
{
"id": "lTpSGA7vnSvUGQs6",
"name": "lovable",
"createdAt": "2025-07-04T05:26:29.453Z",
"updatedAt": "2025-07-04T05:26:29.453Z"
},
{
"id": "oKGIn6U0wpeHShTN",
"name": "working flow",
"createdAt": "2025-06-02T06:27:44.762Z",
"updatedAt": "2025-06-02T06:27:44.762Z"
}
],
"nodes": [
{
"id": "784badb8-0cf6-434d-9d5d-1670757b548b",
"name": "点击\"执行工作流\"时",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-300,
-40
],
"parameters": {},
"typeVersion": 1
},
{
"id": "26b93e8c-0a72-4491-90fe-55b5f5da02a0",
"name": "Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
-80,
-40
],
"parameters": {
"filter": {
"folderId": {
"__rl": true,
"mode": "list",
"value": "1NgITWoqBgLAVof9bxF0jIrVToQ9c919u",
"cachedResultUrl": "https://drive.google.com/drive/folders/1NgITWoqBgLAVof9bxF0jIrVToQ9c919u",
"cachedResultName": "contract document"
}
},
"options": {},
"resource": "fileFolder"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "RFbg76pQ49AUClT1",
"name": "name"
}
},
"typeVersion": 3
},
{
"id": "21174f84-5f7b-45bc-944b-0f0a7c2ffd49",
"name": "Google Drive1",
"type": "n8n-nodes-base.googleDrive",
"position": [
140,
-40
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "RFbg76pQ49AUClT1",
"name": "name"
}
},
"typeVersion": 3
},
{
"id": "d84e6051-cc04-4f51-b9c3-0e69e2193571",
"name": "Pinecone Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
360,
-40
],
"parameters": {
"mode": "insert",
"options": {},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "package1536",
"cachedResultName": "package1536"
}
},
"credentials": {
"pineconeApi": {
"id": "id",
"name": "PineconeApi account 2"
}
},
"typeVersion": 1.3
},
{
"id": "3185a781-28af-4ee0-be7b-2183b80ce0e3",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
300,
160
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "id",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "8eccc3bb-654f-4a92-8074-9d2418afae12",
"name": "默认数据加载器",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
500,
180
],
"parameters": {
"options": {},
"dataType": "binary",
"textSplittingMode": "custom"
},
"typeVersion": 1.1
},
{
"id": "9a6a4542-81f0-4fa6-b0fa-6fbfcf5fb3d3",
"name": "递归字符文本分割器",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
600,
400
],
"parameters": {
"options": {},
"chunkOverlap": 100
},
"typeVersion": 1
},
{
"id": "60485603-13aa-46c8-9824-011b75d368bd",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
-420,
-180
],
"parameters": {
"width": 1300,
"height": 980,
"content": "## 文档加载"
},
"typeVersion": 1
},
{
"id": "349466bc-c0c7-4e4e-9e9c-78554a3123ae",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-420,
940
],
"parameters": {
"width": 1300,
"height": 720,
"content": "## 通过聊天查询文档（用于测试）"
},
"typeVersion": 1
},
{
"id": "id",
"name": "当收到聊天消息时",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-100,
980
],
"webhookId": "id",
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "4240e62e-0b44-4dbd-9cff-87a404a496bd",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
120,
980
],
"parameters": {
"options": {
"systemMessage": "*Role*\nYou are a highly experienced contracting, commercial and legal adviser who thoroughly understands the contract related to shipping, clearing and forwarding agreements and advise and reply to chat queries looking into the pinecone vector database and respond accordingly. \n\n**Instructions**\nyou will receive chat query to which you have to reply back in chat\nyou will only look for information in the pinecone vector databse\nyou will not create your own reply if you don't get the answer from the database\n\nNote:\nbe polite and professional in your response\ncan use emojis where it is appropriate\n"
}
},
"typeVersion": 2
},
{
"id": "34d9e834-3aba-4c80-8c4d-4206fcdbfac3",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
80,
1200
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "id",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "784924f6-d197-4666-9a05-e36020021ae2",
"name": "简单记忆",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
200,
1200
],
"parameters": {},
"typeVersion": 1.3
},
{
"id": "00b70c8d-5940-4eef-84c4-b87d69df3ab9",
"name": "使用向量存储回答问题",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"position": [
380,
1200
],
"parameters": {
"description": "每当有聊天查询时，使用此 Pinecone 向量数据库进行分析并构建回复"
},
"typeVersion": 1.1
},
{
"id": "dfefbee7-5125-42da-b696-f343dc89573c",
"name": "Pinecone Vector Store1",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
180,
1360
],
"parameters": {
"options": {},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "package1536",
"cachedResultName": "package1536"
}
},
"credentials": {
"pineconeApi": {
"id": "id",
"name": "PineconeApi account 2"
}
},
"typeVersion": 1.3
},
{
"id": "8a0e2476-661e-4702-8563-ec0b12033884",
"name": "Embeddings OpenAI1",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
200,
1500
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "SCKN5KUziIpM8NB7",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "31a4456c-4a35-4beb-9c4b-de49e460e492",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
520,
1420
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "SCKN5KUziIpM8NB7",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "7aa47a91-19f9-4a0e-b1b2-5867cf4982ef",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1660,
-160
],
"parameters": {
"width": 1200,
"height": 980,
"content": "## 通过 Webhook 连接的用户界面查询文档"
},
"typeVersion": 1
},
{
"id": "c9da6a17-a0aa-4d3c-844a-1c3785a956eb",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
1900,
0
],
"webhookId": "12b44ee5-c43e-430c-a1d4-4fc5ff5e45c4",
"parameters": {
"path": "12b44ee5-c43e-430c-a1d4-4fc5ff5e45c4",
"options": {},
"httpMethod": "POST",
"responseMode": "responseNode"
},
"typeVersion": 2
},
{
"id": "b1e8830f-8cfe-40ef-b611-76e70cd9184b",
"name": "AI Agent1",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
2120,
0
],
"parameters": {
"text": "=the query: {{ $json.body.query }}",
"options": {
"systemMessage": "*Role*\nYou are a highly experienced contracting, commercial and legal adviser who thoroughly understands the contract related to shipping, clearing and forwarding agreements and advise and reply to chat queries looking into the pinecone vector database and respond accordingly. \n\n**Instructions**\nyou will receive chat query to which you have to reply back in chat\nyou will only look for information in the pinecone vector databse\nyou will not create your own reply if you don't get the answer from the database\n\nNote:\nbe polite and professional in your response\ncan use emojis where it is appropriate\n"
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "87db20d4-7a7c-48a6-a29a-2fd089f93a43",
"name": "OpenAI Chat Model2",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
2020,
220
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "id",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "2454b5ff-e53e-41c5-9844-f171d63ee2d4",
"name": "简单记忆1",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"disabled": true,
"position": [
2180,
220
],
"parameters": {},
"typeVersion": 1.3
},
{
"id": "e33b7eff-0166-43b2-ab7e-5f53063164a9",
"name": "使用向量存储回答问题1",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"position": [
2380,
220
],
"parameters": {
"description": "每当有聊天查询时，使用此 Pinecone 向量数据库进行分析并构建回复"
},
"typeVersion": 1.1
},
{
"id": "e223bcf1-7085-433a-a51d-708b0c36a2e4",
"name": "Pinecone Vector Store2",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
2180,
380
],
"parameters": {
"options": {},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "package1536",
"cachedResultName": "package1536"
}
},
"credentials": {
"pineconeApi": {
"id": "HqCFDvnsq0D6wXpJ",
"name": "PineconeApi account 2"
}
},
"typeVersion": 1.3
},
{
"id": "9e3f06a1-900b-427e-8775-dad8ddc1de80",
"name": "Embeddings OpenAI2",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
2200,
520
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "id",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "df06efec-1f75-4309-923b-044e1c1991f3",
"name": "OpenAI Chat Model3",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
2520,
440
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"id": "id",
"name": "OpenAi account 5"
}
},
"typeVersion": 1.2
},
{
"id": "01b59805-abdd-49ff-a553-0dddf3ed1450",
"name": "响应 Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
2480,
0
],
"parameters": {
"options": {
"responseKey": "={{ $json.output }}"
}
},
"typeVersion": 1.4
},
{
"id": "05fd0853-0ebd-4a99-9345-982c9e664e27",
"name": "便签3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1000,
-180
],
"parameters": {
"color": 4,
"width": 560,
"height": 980,
"content": "本项目演示如何使用 n8n 构建检索增强生成（RAG）系统，该系统："
},
"typeVersion": 1
},
{
"id": "7f1cc5b2-104e-4571-a838-29c71c79bd08",
"name": "便签4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1000,
940
],
"parameters": {
"color": 4,
"width": 560,
"height": 720,
"content": "## 通过聊天查询文档"
},
"typeVersion": 1
},
{
"id": "e11b8fbd-c24b-469f-a196-1e507a6d3e75",
"name": "便签5",
"type": "n8n-nodes-base.stickyNote",
"position": [
1080,
-160
],
"parameters": {
"color": 4,
"width": 560,
"height": 980,
"content": "## 🌐 流程3：基于 Webhook 连接 Lovable 的 UI 查询"
},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "460c7740-a2d1-41f7-92d5-fc9113152663",
"connections": {
"Webhook": {
"main": [
[
{
"node": "AI Agent1",
"type": "main",
"index": 0
}
]
]
},
"AI Agent1": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Google Drive": {
"main": [
[
{
"node": "Google Drive1",
"type": "main",
"index": 0
}
]
]
},
"Google Drive1": {
"main": [
[
{
"node": "Pinecone Vector Store",
"type": "main",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Simple Memory1": {
"ai_memory": [
[
{
"node": "AI Agent1",
"type": "ai_memory",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Embeddings OpenAI1": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store1",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Embeddings OpenAI2": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store2",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Answer questions with a vector store",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model2": {
"ai_languageModel": [
[
{
"node": "AI Agent1",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model3": {
"ai_languageModel": [
[
{
"node": "Answer questions with a vector store1",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_document",
"index": 0
}
]
]
},
"Pinecone Vector Store1": {
"ai_vectorStore": [
[
{
"node": "Answer questions with a vector store",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"Pinecone Vector Store2": {
"ai_vectorStore": [
[
{
"node": "Answer questions with a vector store1",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"Answer questions with a vector store": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
},
"When clicking ‘Execute workflow’": {
"main": [
[
{
"node": "Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Answer questions with a vector store1": {
"ai_tool": [
[
{
"node": "AI Agent1",
"type": "ai_tool",
"index": 0
}
]
]
}
}
}常见问题
如何使用这个工作流？
复制上方的 JSON 配置代码，在您的 n8n 实例中创建新工作流并选择「从 JSON 导入」，粘贴配置后根据需要修改凭证设置即可。
这个工作流适合什么场景？
高级 - 内部知识库, AI RAG 检索增强
需要付费吗？
本工作流完全免费，您可以直接导入使用。但请注意，工作流中使用的第三方服务（如 OpenAI API）可能需要您自行付费。
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