This workflow follows the Chainllm → 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 →
{
"name": "lec 8 - upload KB",
"nodes": [
{
"parameters": {
"operation": "text",
"options": {}
},
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1.1,
"position": [
32,
96
],
"id": "e01052f8-d456-4ede-8321-66aae4aeb41c",
"name": "Extract from File"
},
{
"parameters": {
"mode": "insert",
"tableName": {
"__rl": true,
"value": "documents",
"mode": "list",
"cachedResultName": "documents"
},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
"typeVersion": 1.3,
"position": [
656,
96
],
"id": "fbc84295-47bf-4900-b6b8-b0838745306e",
"name": "Supabase Vector Store",
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"options": {
"dimensions": 1536
}
},
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"typeVersion": 1.2,
"position": [
656,
288
],
"id": "416386a9-9631-4ea8-ad0c-5463a5a56ef7",
"name": "Embeddings OpenAI",
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsonMode": "expressionData",
"jsonData": "={{ $('Split Out').item.json.chunck }}",
"textSplittingMode": "custom",
"options": {
"metadata": {
"metadataValues": [
{
"name": "product_code",
"value": "={{ $('Split Out').item.json.product_code }}"
},
{
"name": "file_name",
"value": "={{ $('Merge').item.json.file_name }}"
}
]
}
}
},
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"typeVersion": 1.1,
"position": [
768,
240
],
"id": "d108b795-d8bc-42c2-a89a-45c5fafd69c1",
"name": "Default Data Loader"
},
{
"parameters": {
"chunkSize": "=200000",
"chunkOverlap": 50,
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"typeVersion": 1,
"position": [
896,
368
],
"id": "fb2315da-5a28-42bd-902f-ec38776690af",
"name": "Recursive Character Text Splitter"
},
{
"parameters": {
"operation": "download",
"fileId": {
"__rl": true,
"value": "={{ $json.file_id }}",
"mode": "id"
},
"options": {}
},
"type": "n8n-nodes-base.googleDrive",
"typeVersion": 3,
"position": [
-144,
96
],
"id": "82642010-81b3-45d6-a174-722d264d2cf9",
"name": "Download file",
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"value": "1LmoSNoCfOSyOvv6wlKVUQzRwpL2SeIGk",
"mode": "list",
"cachedResultName": "products kb",
"cachedResultUrl": "https://drive.google.com/drive/folders/1LmoSNoCfOSyOvv6wlKVUQzRwpL2SeIGk"
},
"event": "fileCreated",
"options": {}
},
"type": "n8n-nodes-base.googleDriveTrigger",
"typeVersion": 1,
"position": [
-848,
80
],
"id": "c8e9da0a-9751-4531-9e3a-d7ad8ebb9c2b",
"name": "Products kb",
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"promptType": "define",
"text": "={{ $json.data }}",
"hasOutputParser": true,
"messages": {
"messageValues": [
{
"message": "=You are a part of out RAG pipeline. your role is to chunck text.\nyou get our products text. chunck it following these rules:\n** each product is in a separated chunck.\n** no chunck contains more than one product\n** all products details are in only one chunck\n** extract product code\n\n##OUTPUT (Strict JSON)\n\n{\n\"chuncks:\": [\n {\n \"chunck\":\"\", \"product_code\":\"\"\n },\n {\n \"chunck\":\"\", \"product_code\":\"\"\n }\n]}"
}
]
},
"batching": {}
},
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"typeVersion": 1.9,
"position": [
192,
96
],
"id": "c4bf78b1-9d9a-4c30-9484-56fcdbe13358",
"name": "Basic LLM Chain"
},
{
"parameters": {
"schemaType": "manual",
"inputSchema": "{\n\"chuncks:\": [\n {\n \"chunck\":\"\", \"product_code\":\"\"\n },\n {\n \"chunck\":\"\", \"product_code\":\"\"\n }\n]}"
},
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"typeVersion": 1.3,
"position": [
352,
304
],
"id": "9ccef2fd-3336-4d09-af80-439e446ba7c9",
"name": "Structured Output Parser"
},
{
"parameters": {
"options": {
"responseFormat": "json_object"
}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenRouter",
"typeVersion": 1,
"position": [
176,
288
],
"id": "8f1cd8d5-e90c-4eef-8df8-e3d4b0a41f36",
"name": "OpenRouter Chat Model",
"credentials": {
"openRouterApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"fieldToSplitOut": "output['chuncks:']",
"options": {}
},
"type": "n8n-nodes-base.splitOut",
"typeVersion": 1,
"position": [
480,
96
],
"id": "ec92c89a-d753-4ffc-93a7-4676ef632c22",
"name": "Split Out"
},
{
"parameters": {
"pollTimes": {
"item": [
{
"mode": "everyMinute"
}
]
},
"triggerOn": "specificFolder",
"folderToWatch": {
"__rl": true,
"value": "1LmoSNoCfOSyOvv6wlKVUQzRwpL2SeIGk",
"mode": "list",
"cachedResultName": "products kb",
"cachedResultUrl": "https://drive.google.com/drive/folders/1LmoSNoCfOSyOvv6wlKVUQzRwpL2SeIGk"
},
"event": "fileUpdated",
"options": {}
},
"type": "n8n-nodes-base.googleDriveTrigger",
"typeVersion": 1,
"position": [
-864,
272
],
"id": "0b90b879-3283-4b46-b3d9-ee6b3b6a9a25",
"name": "Google Drive Trigger",
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "delete",
"tableId": "documents",
"filters": {
"conditions": [
{
"keyName": "file_name",
"condition": "eq",
"keyValue": "={{ $json.name }}"
}
]
}
},
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
-720,
272
],
"id": "3e8258f8-e01e-4515-b005-61cc0968c184",
"name": "Delete a row",
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {},
"type": "n8n-nodes-base.limit",
"typeVersion": 1,
"position": [
-560,
272
],
"id": "7b34cc7d-3d2d-48ad-8b25-b5395b0997ee",
"name": "Limit"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "19631ae5-a7cd-4d08-a8e8-ff05b357e023",
"name": "file_id",
"value": "={{ $('Google Drive Trigger').item.json.id }}",
"type": "string"
},
{
"id": "951a9652-e176-4d9f-b281-d30f24fec2d3",
"name": "file_name",
"value": "={{ $('Google Drive Trigger').item.json.name }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-432,
272
],
"id": "54b8c93b-602d-4255-a59f-6d2554f12e18",
"name": "Edit Fields"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "3e31c13a-f0e4-48b5-8522-143b223ced79",
"name": "file_id",
"value": "={{ $json.id }}",
"type": "string"
},
{
"id": "57f5247a-edf3-471c-a791-e5e2072ec365",
"name": "file_name",
"value": "={{ $json.name }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-576,
80
],
"id": "689bab0e-9f62-4d93-814f-7c719b499f83",
"name": "Edit Fields1"
},
{
"parameters": {},
"type": "n8n-nodes-base.merge",
"typeVersion": 3.2,
"position": [
-320,
96
],
"id": "6aa2b8ca-dc7f-42df-9c23-3eb95f860795",
"name": "Merge"
}
],
"connections": {
"Extract from File": {
"main": [
[
{
"node": "Basic LLM Chain",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Supabase Vector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Supabase Vector Store",
"type": "ai_document",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"Download file": {
"main": [
[
{
"node": "Extract from File",
"type": "main",
"index": 0
}
]
]
},
"Products kb": {
"main": [
[
{
"node": "Edit Fields1",
"type": "main",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "Basic LLM Chain",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"OpenRouter Chat Model": {
"ai_languageModel": [
[
{
"node": "Basic LLM Chain",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Basic LLM Chain": {
"main": [
[
{
"node": "Split Out",
"type": "main",
"index": 0
}
]
]
},
"Split Out": {
"main": [
[
{
"node": "Supabase Vector Store",
"type": "main",
"index": 0
}
]
]
},
"Google Drive Trigger": {
"main": [
[
{
"node": "Delete a row",
"type": "main",
"index": 0
}
]
]
},
"Delete a row": {
"main": [
[
{
"node": "Limit",
"type": "main",
"index": 0
}
]
]
},
"Limit": {
"main": [
[
{
"node": "Edit Fields",
"type": "main",
"index": 0
}
]
]
},
"Edit Fields": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 1
}
]
]
},
"Edit Fields1": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 0
}
]
]
},
"Merge": {
"main": [
[
{
"node": "Download file",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1",
"binaryMode": "separate"
},
"meta": {
"templateCredsSetupCompleted": true
},
"id": "9YsBtyBlwNsWNLU5",
"tags": [
{
"updatedAt": "2026-04-08T13:48:52.844Z",
"createdAt": "2026-04-08T13:48:52.844Z",
"id": "cKUviWqP7KgroMNd",
"name": "Agentic AI Course"
}
]
}
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.
googleDriveOAuth2ApiopenAiApiopenRouterApisupabaseApi
Pro
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About this workflow
lec 8 - upload KB. Uses vectorStoreSupabase, embeddingsOpenAi, documentDefaultDataLoader, textSplitterRecursiveCharacterTextSplitter. Event-driven trigger; 17 nodes.
Source: https://github.com/Moamen-Elsharkawy/ai-shopping-assistant/blob/main/kb-ingestion.json — original creator credit. Request a take-down →
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