Tamer This workflow corresponds to n8n.io template #4858 — we link there as the canonical source.
This workflow follows the Chainllm → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"id": "exfELP1QbgPmWdJN",
"name": "Whatsapp Health ai chatbot using llm chain",
"tags": [],
"nodes": [
{
"id": "fe70fcaa-6777-4473-951b-8324e2310bfc",
"name": "Google Gemini Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"position": [
1000,
20
],
"parameters": {},
"typeVersion": 1
},
{
"id": "8329bab1-05d3-4bfe-85cf-60572fc064c9",
"name": "Structured Output Parser",
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"position": [
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40
],
"parameters": {},
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},
{
"id": "3a8c62a0-c77f-43a9-9dd4-8ee6f853280e",
"name": "WhatsApp Message Received",
"type": "n8n-nodes-base.whatsAppTrigger",
"position": [
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30
],
"parameters": {},
"typeVersion": 1
},
{
"id": "fdb01ad3-95af-4d9a-9b95-0f4c5fd71504",
"name": "Get whatsapp image",
"type": "n8n-nodes-base.whatsApp",
"position": [
600,
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],
"parameters": {},
"typeVersion": 1
},
{
"id": "81f2902d-5d28-475c-a306-f03f76545e0a",
"name": "Download Image",
"type": "n8n-nodes-base.httpRequest",
"position": [
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],
"parameters": {},
"typeVersion": 4.2
},
{
"id": "07695d33-e3d9-4ea8-b817-922a5dbf1dbb",
"name": "Send Response to client",
"type": "n8n-nodes-base.whatsApp",
"position": [
1560,
40
],
"parameters": {},
"typeVersion": 1
},
{
"id": "3923ef57-0cb4-4c7f-810b-943e4307283f",
"name": "Generate Response from text",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
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280
],
"parameters": {},
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},
{
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"name": "Generate Response from Image and caption",
"type": "@n8n/n8n-nodes-langchain.chainLlm",
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],
"parameters": {},
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},
{
"id": "d5f97550-7af4-45c3-8a71-de5eb1ab6f0c",
"name": "Check if message contains image",
"type": "n8n-nodes-base.switch",
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],
"parameters": {},
"typeVersion": 3.2
},
{
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],
"parameters": {
"content": ""
},
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{
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{
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"parameters": {
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},
{
"id": "440689db-0477-4496-aa6f-9a1b378db7fc",
"name": "Sticky Note3",
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],
"parameters": {
"content": ""
},
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},
{
"id": "2123977d-04d2-414d-a42a-095f33e6dc3b",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
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],
"parameters": {
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},
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},
{
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{
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"name": "Sticky Note6",
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],
"parameters": {
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},
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},
{
"id": "a5c6d07c-508b-4cd6-b596-77cf7dd634d3",
"name": "Sticky Note7",
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"position": [
-1140,
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],
"parameters": {
"content": ""
},
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}
],
"active": false,
"settings": {},
"versionId": "79a0f1c9-4007-456f-8dba-31e02c9949b8",
"connections": {
"Download Image": {
"main": [
[
{
"node": "Generate Response from Image and caption",
"type": "main",
"index": 0
}
]
]
},
"Get whatsapp image": {
"main": [
[
{
"node": "Download Image",
"type": "main",
"index": 0
}
]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "Generate Response from Image and caption",
"type": "ai_languageModel",
"index": 0
},
{
"node": "Generate Response from text",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Generate Response from Image and caption",
"type": "ai_outputParser",
"index": 0
},
{
"node": "Generate Response from text",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"WhatsApp Message Received": {
"main": [
[
{
"node": "Check if message contains image",
"type": "main",
"index": 0
}
]
]
},
"Generate Response from text": {
"main": [
[
{
"node": "Send Response to client",
"type": "main",
"index": 0
}
]
]
},
"Check if message contains image": {
"main": [
[
{
"node": "Get whatsapp image",
"type": "main",
"index": 0
}
],
[
{
"node": "Generate Response from text",
"type": "main",
"index": 0
}
]
]
},
"Generate Response from Image and caption": {
"main": [
[
{
"node": "Send Response to client",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
Transform your WhatsApp into a professional nutrition consultant with this comprehensive AI-powered dietitian assistant. Built using n8n automation and Google Gemini AI, this workflow provides instant, intelligent nutrition advice to your clients 24/7.
Source: https://n8n.io/workflows/4858/ — original creator credit. Request a take-down →
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