This workflow follows the Chat Trigger → Documentdefaultdataloader recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"meta": {
"templateCredsSetupCompleted": true
},
"nodes": [
{
"id": "e2e61eae-6306-47db-908c-9d82758f6516",
"name": "When clicking \"Execute Workflow\"",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-660,
40
],
"parameters": {},
"typeVersion": 1
},
{
"id": "a45afcc0-d780-462a-9ed7-27daf01363a7",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-500,
-140
],
"parameters": {
"color": 7,
"width": 1086.039382705461,
"height": 728.4168721167887,
"content": "## 1. Setup: Fetch file from Google Drive, split it into chunks and insert into a vector database\nNote that running this part multiple times will insert multiple copies into your DB"
},
"typeVersion": 1
},
{
"id": "a3c56569-0728-4246-8d87-fa106d373566",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-960,
-60
],
"parameters": {
"height": 350.7942096493649,
"content": "# Try me out\n1. In Pinecone, create an index with 1536 dimensions and select it in the two vector store nodes\n2. Populate Pinecone by clicking the 'test workflow' button below\n3. Click the 'chat' button below and enter the following:\n\n_Which email provider does the creator of Bitcoin use?_"
},
"typeVersion": 1
},
{
"id": "c1543b8a-dbea-42a9-a35e-e22ed86f565b",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-500,
640
],
"parameters": {
"color": 7,
"width": 1594,
"height": 529,
"content": "## 2. Chat with file, getting citations in reponse"
},
"typeVersion": 1
},
{
"id": "5300d5dd-4186-4402-9442-88adab4e9a89",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-480,
-40
],
"parameters": {
"color": 7,
"width": 179.58883583572606,
"height": 257.75985739596473,
"content": "Will fetch the Bitcoin whitepaper, but you can change this"
},
"typeVersion": 1
},
{
"id": "9f707f2b-6cb2-47b8-88fc-65cfd09b6cae",
"name": "Pinecone Vector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
80,
40
],
"parameters": {
"mode": "insert",
"options": {},
"pineconeIndex": {
"__rl": true,
"mode": "id",
"value": "test-index"
}
},
"credentials": {
"pineconeApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "a32ac59e-efdc-4ff3-92dd-be794c2be7f7",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
-660,
760
],
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "e14145d2-0c18-4813-9555-263314cb0376",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
340,
980
],
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4o-mini"
},
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "e6863abd-d3df-4b45-9083-96b82cd46773",
"name": "Set file URL in Google Drive",
"type": "n8n-nodes-base.set",
"position": [
-440,
40
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "dc7a70e3-9b04-404b-8892-ba0fcc4274c2",
"name": "file_url",
"type": "string",
"value": " https://drive.google.com/file/d/11Koq9q53nkk0F5Y8eZgaWJUVR03I4-MM/view"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "80d241f1-7c8a-489e-9255-84bc79ec11c7",
"name": "Download file",
"type": "n8n-nodes-base.googleDrive",
"position": [
-220,
40
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "url",
"value": "={{ $json.file_url }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "8483b283-1ff4-4540-891a-09886c146e16",
"name": "Default Data Loader",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
180,
240
],
"parameters": {
"options": {
"metadata": {
"metadataValues": [
{
"name": "file_url",
"value": "={{ $('Set file URL in Google Drive').first().json.file_url }}"
},
{
"name": "file_name",
"value": "={{ $('Download file').first().binary.data.fileName }}"
}
]
}
},
"dataType": "binary"
},
"typeVersion": 1
},
{
"id": "c262df34-b2d9-4f48-b975-d694469e6e5a",
"name": "Embeddings OpenAI2",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
-220,
980
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "45c8e8cb-a29e-48ad-985f-e0136065840f",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
40,
240
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
},
{
"id": "8c852568-f100-4849-a06f-86e71733512a",
"name": "Recursive Character Text Splitter",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
260,
400
],
"parameters": {
"options": {},
"chunkSize": 3000,
"chunkOverlap": 200
},
"typeVersion": 1
},
{
"id": "319e5b2d-c648-4ef5-8238-7732c62d34f5",
"name": "Set max chunks to send to model",
"type": "n8n-nodes-base.set",
"position": [
-420,
760
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "33f4addf-72f3-4618-a6ba-5b762257d723",
"name": "chunks",
"type": "number",
"value": 4
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "91b9132e-ef51-4044-be1b-f391aeeb467c",
"name": "Get top chunks matching query",
"type": "@n8n/n8n-nodes-langchain.vectorStorePinecone",
"position": [
-220,
760
],
"parameters": {
"mode": "load",
"topK": "={{ $json.chunks }}",
"prompt": "={{ $json.chatInput }}",
"options": {},
"pineconeIndex": {
"__rl": true,
"mode": "id",
"value": "test-index"
}
},
"credentials": {
"pineconeApi": {
"name": "<your credential>"
}
},
"typeVersion": 1
},
{
"id": "5ad6e0fd-c296-4507-8232-164b5be57f4a",
"name": "Prepare chunks",
"type": "n8n-nodes-base.code",
"position": [
140,
760
],
"parameters": {
"jsCode": "let out = \"\"\nfor (const i in $input.all()) {\n let itemText = \"--- CHUNK \" + i + \" ---\\n\"\n itemText += $input.all()[i].json.document.pageContent + \"\\n\"\n itemText += \"\\n\"\n out += itemText\n}\n\nreturn {\n 'context': out\n};"
},
"typeVersion": 2
},
{
"id": "770b066a-abb2-443e-bcaa-14632c6696f4",
"name": "Answer the query based on chunks",
"type": "@n8n/n8n-nodes-langchain.informationExtractor",
"position": [
340,
760
],
"parameters": {
"text": "={{ $json.context }}\n\nQuestion: {{ $('When chat message received').first().json.chatInput }}\nHelpful Answer:",
"options": {
"systemPromptTemplate": "=Use the following pieces of context to answer the question at the end. If you don't know the answer, just say that you don't know, don't try to make up an answer. Important: In your response, also include the the indexes of the chunks you used to generate the answer."
},
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"required\": [\"answer\", \"citations\"],\n \"properties\": {\n \"answer\": {\n \"type\": \"string\"\n },\n \"citations\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"number\"\n }\n }\n }\n}"
},
"typeVersion": 1
},
{
"id": "e43abc0c-cedf-4e73-a766-7fad57601cfe",
"name": "Compose citations",
"type": "n8n-nodes-base.set",
"position": [
700,
760
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "ace6185e-8b3d-4f89-ae36-dfe0c391a0a9",
"name": "citations",
"type": "array",
"value": "={{ $json.citations.map(i => '[' + $('Get top chunks matching query').all()[$json.citations].json.document.metadata.file_name + ', lines ' + $('Get top chunks matching query').all()[$json.citations].json.document.metadata['loc.lines.from'] + '-' + $('Get top chunks matching query').all()[$json.citations].json.document.metadata['loc.lines.to'] + ']') }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "f82df340-42fc-4e92-9e9d-d808f19e0407",
"name": "Generate response",
"type": "n8n-nodes-base.set",
"position": [
900,
760
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "11396286-0378-4c3a-86e1-c9ef51afbfc7",
"name": "text",
"type": "string",
"value": "={{ $json.answer }} {{ $if(!$json.citations.isEmpty(), \"\\n\" + $json.citations.join(\"\"), '') }}"
}
]
}
},
"typeVersion": 3.4
}
],
"connections": {
"Download file": {
"main": [
[
{
"node": "Pinecone Vector Store",
"type": "main",
"index": 0
}
]
]
},
"Prepare chunks": {
"main": [
[
{
"node": "Answer the query based on chunks",
"type": "main",
"index": 0
}
]
]
},
"Compose citations": {
"main": [
[
{
"node": "Generate response",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Embeddings OpenAI2": {
"ai_embedding": [
[
{
"node": "Get top chunks matching query",
"type": "ai_embedding",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Answer the query based on chunks",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Pinecone Vector Store",
"type": "ai_document",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "Set max chunks to send to model",
"type": "main",
"index": 0
}
]
]
},
"Set file URL in Google Drive": {
"main": [
[
{
"node": "Download file",
"type": "main",
"index": 0
}
]
]
},
"Get top chunks matching query": {
"main": [
[
{
"node": "Prepare chunks",
"type": "main",
"index": 0
}
]
]
},
"Set max chunks to send to model": {
"main": [
[
{
"node": "Get top chunks matching query",
"type": "main",
"index": 0
}
]
]
},
"Answer the query based on chunks": {
"main": [
[
{
"node": "Compose citations",
"type": "main",
"index": 0
}
]
]
},
"When clicking \"Execute Workflow\"": {
"main": [
[
{
"node": "Set file URL in Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
googleDriveOAuth2ApiopenAiApipineconeApi
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How this works
This workflow enables you to build and test custom AI-driven automations interactively, allowing seamless integration of vector databases for intelligent data retrieval and chat-based interactions powered by OpenAI. It's ideal for developers and AI enthusiasts experimenting with event-driven systems that combine manual execution with real-time chat triggers, streamlining the creation of responsive bots or knowledge retrieval tools. The key step involves the Pinecone vector store, which embeds and queries documents to deliver context-aware responses, enhanced by Google Drive for loading external files.
Use this workflow when prototyping AI features that require on-demand code execution and vector search, such as custom chat assistants or document Q&A systems. Avoid it for production-scale applications needing robust error handling or high-volume processing, as its manual trigger suits testing rather than automated runs. Common variations include swapping OpenAI for other language models or integrating additional data sources like web scrapers for broader knowledge bases.
About this workflow
Manual Code. Uses manualTrigger, stickyNote, vectorStorePinecone, chatTrigger. Event-driven trigger; 20 nodes.
Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →
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