基于Gemini AI的WhatsApp虚拟接待员 - 处理文本和语音的知识库系统
高级
这是一个Support Chatbot, AI RAG领域的自动化工作流，包含 18 个节点。主要使用 Set, Code, Switch, WhatsApp, HttpRequest 等节点。 基于Gemini AI的WhatsApp虚拟接待员 - 处理文本和语音的知识库系统
前置要求
- •可能需要目标 API 的认证凭证
- •Google Gemini API Key
- •Pinecone API Key
使用的节点 (18)
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
{
"meta": {
"instanceId": "07df66e33836083697e8bd7e53a57a2a1f404ad7aabcc82daa752a2b5a254167",
"templateId": "5385"
},
"nodes": [
{
"id": "ca19699e-15fd-4366-8aa0-2f26a8f0b2bb",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
720,
496
],
"parameters": {
"text": "={{ $json.messages[0].text.body }}\n{{ $json.candidates[0].content.parts[0].text }}",
"options": {
"systemMessage": "=You are currently talking to {{ $json.contacts[0].profile.name }}.\n\n***IMMEDIATE AND ABSOLUTE RULES:***\n***1. LANGUAGE: Respond ONLY in English. If the user's input is in English, respond in English.\n***2. RESPONSE START: Your response MUST BEGIN DIRECTLY WITH THE ANSWER OR THE PRODUCT RECOMMENDATION. DO NOT USE ANY FORM OF THANK YOU, GREETING, OR ACKNOWLEDGEMENT OF THE USER'S INPUT AT THE START OF YOUR RESPONSE. THIS IS A CRITICAL PROFESSIONAL REQUIREMENT.***\n\nYou are a friendly and professional virtual receptionist for Superclean Middle East Chemicals & Cleaning Materials L.L.C. Your primary function is to provide information about cleaning and hygiene products, take quote requests, guide customers, and collect essential details. You achieve this by directly responding to inquiries.\n\nYou have been provided with relevant information from our knowledge base/vector store to help you answer the user's question. Use this information directly and integrate it seamlessly into your response. Do not acknowledge the source of this information (e.g., \"based on our product information\" or \"from the knowledge base\").\n\n**Regarding Product Recommendations:**\n* **Prioritize a direct product recommendation immediately.** Do not ask multiple clarifying questions upfront.\n* If multiple products *could* match, provide a brief list of the top 2-3 most relevant options based on the initial query.\n* If absolutely necessary to clarify for a *better* recommendation, ask **only one, most crucial question** after providing an initial recommendation. Do not engage in a back-and-forth questioning session.\n\nAlways maintain a polite, business-casual tone with clarity. If you don’t know an answer, redirect or creatively deflect the question while offering help. If a product-specific question is asked that isn't in your script, offer to pass the inquiry to a specialist. Speak clearly and naturally.\nDon't mention \"based on our product information\" to the user.\n"
},
"promptType": "define"
},
"typeVersion": 2
},
{
"id": "29da8178-4c2b-4da6-87e3-87bbeb51f4d4",
"name": "Google Gemini聊天模型",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
656,
736
],
"parameters": {
"options": {}
},
"credentials": {
"googlePalmApi": {
"id": "2CxiwuZKBBT7X4pw",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "e48c4c7a-6285-497c-8a65-3d7b132cadee",
"name": "简单记忆",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
784,
736
],
"parameters": {
"sessionKey": "={{ $('WhatsApp Trigger').item.json.contacts[0].wa_id }}",
"sessionIdType": "customKey",
"contextWindowLength": 20
},
"typeVersion": 1.3
},
{
"id": "9b267a71-5eff-4a09-9b00-26c1924d60f2",
"name": "使用向量存储回答问题",
"type": "@n8n/n8n-nodes-langchain.toolVectorStore",
"position": [
912,
736
],
"parameters": {
"description": "返回与公司信息、产品和服务相关的文档"
},
"typeVersion": 1.1
},
{
"id": "56ee6e8c-2087-4b0a-8182-d4e09ca1070f",
"name": "Pinecone Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
816,
944
],
"parameters": {
"options": {},
"pineconeIndex": {
"__rl": true,
"mode": "list",
"value": "superclean",
"cachedResultName": "superclean"
}
},
"credentials": {
"pineconeApi": {
"id": "MCsQPuVGkm8qJFlq",
"name": "PineconeApi account"
}
},
"typeVersion": 1.2
},
{
"id": "800013cf-a0fc-4fc9-9aab-e7fca168ce07",
"name": "Google Gemini 聊天模型1",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
1104,
944
],
"parameters": {
"options": {},
"modelName": "models/gemini-2.0-flash"
},
"credentials": {
"googlePalmApi": {
"id": "2CxiwuZKBBT7X4pw",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "5356b124-d55b-4a95-bebf-da34d258e4b5",
"name": "Google Gemini 嵌入",
"type": "@n8n/n8n-nodes-langchain.embeddingsGoogleGemini",
"position": [
896,
1152
],
"parameters": {},
"credentials": {
"googlePalmApi": {
"id": "2CxiwuZKBBT7X4pw",
"name": "Google Gemini(PaLM) Api account"
}
},
"typeVersion": 1
},
{
"id": "60bbd3ad-9cc5-4314-accf-63443742566f",
"name": "WhatsApp 触发器",
"type": "n8n-nodes-base.whatsAppTrigger",
"position": [
-880,
480
],
"webhookId": "4a234429-953d-4945-ba4c-e2601babf287",
"parameters": {
"options": {},
"updates": [
"messages"
]
},
"credentials": {
"whatsAppTriggerApi": {
"id": "c3SMCxa8j0SOP79z",
"name": "WhatsApp OAuth account Magic"
}
},
"typeVersion": 1
},
{
"id": "62fbdacb-50a4-4ca2-87e1-ecb4277e13fc",
"name": "获取音频URL",
"type": "n8n-nodes-base.whatsApp",
"position": [
-464,
304
],
"webhookId": "447d8752-1b55-429f-b53e-829af23156b9",
"parameters": {
"resource": "media",
"operation": "mediaUrlGet",
"mediaGetId": "={{ $json.messages[0].audio.id }}"
},
"credentials": {
"whatsAppApi": {
"id": "HEJFAbeNaUYGKHZb",
"name": "WhatsApp account"
}
},
"typeVersion": 1
},
{
"id": "4e830f8a-a674-4dd7-ad32-39671f5f23cf",
"name": "音频下载",
"type": "n8n-nodes-base.httpRequest",
"position": [
-240,
304
],
"parameters": {
"url": "={{ $json.url }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "nsCa9zmf7PjXTod2",
"name": "Whatsapp download Auth"
}
},
"typeVersion": 4.2
},
{
"id": "f1d1d1ab-d058-4852-8f74-5ac60a8e49e0",
"name": "音频提示",
"type": "n8n-nodes-base.set",
"position": [
400,
304
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "49a3d92d-3bc6-4856-a15e-2ba2afa0ace8",
"name": "candidates[0].content.parts[0].text",
"type": "string",
"value": "={{ $json.candidates[0].content.parts[0].text }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "6de808f7-75a9-4bcf-9bb9-c5cacaa4c128",
"name": "发送消息",
"type": "n8n-nodes-base.whatsApp",
"position": [
1312,
496
],
"webhookId": "3b158ca3-ea29-497e-9002-45422d69490c",
"parameters": {
"textBody": "={{ $json.output }}",
"operation": "send",
"phoneNumberId": "723548604171403",
"additionalFields": {},
"recipientPhoneNumber": "={{ $('WhatsApp Trigger').item.json.messages[0].from }}"
},
"credentials": {
"whatsAppApi": {
"id": "9Il95VjdrW30AtrZ",
"name": "WhatsApp account Magic valley"
}
},
"typeVersion": 1
},
{
"id": "87c6c269-cf17-4645-ac05-0c8872895d00",
"name": "便签",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1200,
320
],
"parameters": {
"color": 4,
"width": 256,
"height": 384,
"content": ""
},
"typeVersion": 1
},
{
"id": "17502cf4-64bc-4726-83ce-351af9b487b3",
"name": "便签1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-240,
-48
],
"parameters": {
"color": 3,
"width": 528,
"height": 272,
"content": "🎧 语音消息处理"
},
"typeVersion": 1
},
{
"id": "a018416b-d5fe-4509-b5c0-920282eef62d",
"name": "便签2",
"type": "n8n-nodes-base.stickyNote",
"position": [
704,
176
],
"parameters": {
"color": 5,
"width": 368,
"height": 224,
"content": "🧠 AI 代理 + 知识库"
},
"typeVersion": 1
},
{
"id": "b47ef7d2-6885-42e5-a37c-b8e1c3d5ecb1",
"name": "音频/消息",
"type": "n8n-nodes-base.switch",
"position": [
-688,
480
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "Audio",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "5acd4de2-655d-4978-af3a-814f4201c651",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $json.messages[0].audio }}",
"rightValue": ""
}
]
},
"renameOutput": true
},
{
"outputKey": "Text",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "94d38699-c1b5-4051-b630-a460edaf4259",
"operator": {
"type": "object",
"operation": "exists",
"singleValue": true
},
"leftValue": "={{ $json.messages[0].text }}",
"rightValue": ""
}
]
},
"renameOutput": true
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "d2038571-24f9-42d7-9412-09c6ad12efa9",
"name": "音频转换",
"type": "n8n-nodes-base.code",
"position": [
0,
304
],
"parameters": {
"jsCode": "const binaryKey = 'data'; // from your node, it's named \"data\"\nconst binaryData = items[0].binary[binaryKey].data;\nconst mimeType = items[0].binary[binaryKey].mimeType || 'audio/ogg';\n\nreturn [\n {\n json: {\n base64Audio: binaryData,\n mimeType\n }\n }\n];\n"
},
"typeVersion": 2
},
{
"id": "2d5a44f6-7fe5-4363-966f-f8bfb7ad9db4",
"name": "Gemini 语音转文本",
"type": "n8n-nodes-base.httpRequest",
"position": [
208,
304
],
"parameters": {
"method": "POST",
"options": {},
"jsonBody": "={\n \"contents\": [\n {\n \"parts\": [\n {\n \"inlineData\": {\n \"mimeType\": \"{{ $json.mimeType }}\",\n \"data\": \"{{ $json.base64Audio }}\"\n }\n },\n {\n \"text\": \"Transcribe this audio and return only the plain spoken words.\"\n }\n ]\n }\n ]\n}\n",
"sendBody": true,
"specifyBody": "json"
},
"typeVersion": 4.2
}
],
"pinData": {},
"connections": {
"AI Agent": {
"main": [
[
{
"node": "Send message",
"type": "main",
"index": 0
}
]
]
},
"Audio Prompt": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Audio Convert": {
"main": [
[
{
"node": "Gemini speech to text",
"type": "main",
"index": 0
}
]
]
},
"Audio/Message": {
"main": [
[
{
"node": "Get Audio URL",
"type": "main",
"index": 0
}
],
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Get Audio URL": {
"main": [
[
{
"node": "Audio Download",
"type": "main",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Audio Download": {
"main": [
[
{
"node": "Audio Convert",
"type": "main",
"index": 0
}
]
]
},
"WhatsApp Trigger": {
"main": [
[
{
"node": "Audio/Message",
"type": "main",
"index": 0
}
]
]
},
"Gemini speech to text": {
"main": [
[
{
"node": "Audio Prompt",
"type": "main",
"index": 0
}
]
]
},
"Pinecone Vector Store": {
"ai_vectorStore": [
[
{
"node": "Answer questions with a vector store",
"type": "ai_vectorStore",
"index": 0
}
]
]
},
"Embeddings Google Gemini": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Google Gemini Chat Model1": {
"ai_languageModel": [
[
{
"node": "Answer questions with a vector store",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Answer questions with a vector store": {
"ai_tool": [
[
{
"node": "AI Agent",
"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 - 客服机器人, 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。
相关工作流推荐
AI驱动的WhatsApp聊天机器人
使用GPT-4o-mini和MongoDB为文档构建RAG驱动的WhatsApp聊天机器人
Set
Code
Switch
+15
35 节点Muhammad Shahzaib Shahid
客服机器人
AI销售代理：WhatsApp和网站销售代理（RAG）
AI销售代理：WhatsApp和网站销售代理（RAG）
Set
Switch
Postgres
+20
69 节点Vansh Arora
自动化多平台销售代理
使用 RAG、CRM 和支付处理的多平台销售代理
If
Set
Switch
+24
83 节点Electrabot
销售
酒店前台 WhatsApp 接待系统
集成 WhatsApp、Gemini 模型切换、Redis 和 Google Sheets 的酒店前台系统
Code
Redis
Whats App
+8
18 节点Akshay
客服机器人
多平台AI销售代理：集成RAG、CRM、日历和Stripe
集成RAG、CRM、日历和Stripe的多平台AI销售代理
If
Set
Switch
+24
83 节点Vansh Arora
销售
基于AI的WhatsApp支持机器人（Google Sheets工单创建）
基于AI的WhatsApp支持机器人（Google Sheets工单创建）
Set
Xml
Code
+20
35 节点Zain Khan
客服机器人
