Alex Kim 
This workflow corresponds to n8n.io template #3647 — we link there as the canonical source.
This workflow follows the Documentdefaultdataloader → OpenAI Embeddings 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 →
{
"id": "WceMkVib0VLlF1BZ",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Vector DB Loader from Google Drive",
"tags": [
{
"id": "6rb8rVhKZj4t0Kne",
"name": "Current",
"createdAt": "2025-02-04T18:13:17.427Z",
"updatedAt": "2025-02-04T18:13:17.427Z"
}
],
"nodes": [
{
"id": "6652e41a-d14a-4e17-9dcd-34df114d219a",
"name": "Default Data Loader",
"type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
"position": [
1240,
1100
],
"parameters": {
"options": {
"metadata": {
"metadataValues": [
{
"name": "filename",
"value": "={{ $('Download File').item.json.name }}"
},
{
"name": "id",
"value": "={{ $('Download File').item.json.id }}"
},
{
"name": "gold",
"value": "false"
}
]
}
}
},
"typeVersion": 1
},
{
"id": "8ae38b72-52fd-46bc-ab47-50bebe5ac4ee",
"name": "Recursive Character Text Splitter",
"type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
"position": [
1320,
1300
],
"parameters": {
"options": {},
"chunkOverlap": 50
},
"typeVersion": 1
},
{
"id": "e6bed8bc-f629-41fd-aa6e-9158b1cbc323",
"name": "Postgres PGVector Store",
"type": "@n8n/n8n-nodes-langchain.vectorStorePGVector",
"position": [
1140,
880
],
"parameters": {
"mode": "insert",
"options": {
"collection": {
"values": {
"useCollection": true,
"collectionName": "workflow_generator",
"collectionTableName": "embedding_collections"
}
}
},
"tableName": "collection_vectors"
},
"credentials": {
"postgres": {
"name": "<your credential>"
}
},
"typeVersion": 1.1
},
{
"id": "96fbc1f3-920d-44c9-9314-742efa3a698a",
"name": "When clicking \u2018Test workflow\u2019",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-500,
740
],
"parameters": {},
"typeVersion": 1
},
{
"id": "4cd7a934-04cc-47b5-a771-db554680ba77",
"name": "Loop Over Items",
"type": "n8n-nodes-base.splitInBatches",
"position": [
100,
740
],
"parameters": {
"options": {}
},
"typeVersion": 3
},
{
"id": "778593d8-fe1c-4eb9-865a-e6ce9ed5f900",
"name": "Move File",
"type": "n8n-nodes-base.googleDrive",
"position": [
1700,
1280
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $('Loop Over Items').item.json.id }}"
},
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"folderId": {
"__rl": true,
"mode": "list",
"value": "1Re6vg-PZxBoUU6sTRDbGs-77bAJ40u8F",
"cachedResultUrl": "https://drive.google.com/drive/folders/1Re6vg-PZxBoUU6sTRDbGs-77bAJ40u8F",
"cachedResultName": "vectorized"
},
"operation": "move"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "3a6584f5-ed86-4900-9177-40ffe82d0ad3",
"name": "Download File",
"type": "n8n-nodes-base.googleDrive",
"position": [
320,
680
],
"parameters": {
"fileId": {
"__rl": true,
"mode": "id",
"value": "={{ $json.id }}"
},
"options": {},
"operation": "download"
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "e1931ab6-4391-46c3-9d7d-22cbfbf90327",
"name": "Search Folder",
"type": "n8n-nodes-base.googleDrive",
"position": [
-280,
740
],
"parameters": {
"filter": {
"folderId": {
"__rl": true,
"mode": "list",
"value": "1mBHrP8UzUnfn3dj_3QS1r0XhQQyVPAGX",
"cachedResultUrl": "https://drive.google.com/drive/folders/1mBHrP8UzUnfn3dj_3QS1r0XhQQyVPAGX",
"cachedResultName": "n8n Workflow JSON Files"
},
"whatToSearch": "files"
},
"options": {
"fields": [
"name",
"id"
]
},
"resource": "fileFolder",
"returnAll": true
},
"credentials": {
"googleDriveOAuth2Api": {
"name": "<your credential>"
}
},
"typeVersion": 3
},
{
"id": "95134ab4-806f-4c47-96a6-e261b3176ebf",
"name": "Schedule Trigger",
"type": "n8n-nodes-base.scheduleTrigger",
"position": [
-500,
940
],
"parameters": {
"rule": {
"interval": [
{
"field": "hours",
"hoursInterval": 4
}
]
}
},
"typeVersion": 1.2
},
{
"id": "0fe604ed-e886-4aa3-856f-c46fb79ce0de",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-520,
1180
],
"parameters": {
"color": 7,
"width": 380,
"height": 240,
"content": "## Creative Commons License\n*License*: **Creative Commons Attribution-ShareAlike 4.0 International** (CC BY-SA 4.0)\n\n*Author*: **AlexK1919**\nYou are free to use, adapt, and share this workflow\u2014even commercially\u2014under the terms of this license.\n\nFull license details: https://creativecommons.org/licenses/by-sa/4.0/"
},
"typeVersion": 1
},
{
"id": "f8055452-b487-46c7-92fe-14b3c88d193f",
"name": "Switch",
"type": "n8n-nodes-base.switch",
"position": [
500,
680
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "pdf",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "7b4e792b-ab6d-4b9b-88a1-d8e51bea6853",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{$binary[\"data\"].mimeType}}",
"rightValue": "application/pdf"
}
]
},
"renameOutput": true
},
{
"outputKey": "text",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "09b7d7c5-5353-4719-b4e2-072e4da39948",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{$binary[\"data\"].mimeType}}",
"rightValue": "text/plain"
}
]
},
"renameOutput": true
},
{
"outputKey": "json",
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "d2763a45-a592-47c8-868f-59dfcd17a71c",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{$binary[\"data\"].mimeType}}",
"rightValue": "application/json"
}
]
},
"renameOutput": true
}
]
},
"options": {}
},
"typeVersion": 3.2
},
{
"id": "c704f48e-a1f5-4539-bde2-545862d21bc6",
"name": "Extract from PDF",
"type": "n8n-nodes-base.extractFromFile",
"position": [
780,
480
],
"parameters": {
"options": {},
"operation": "pdf"
},
"typeVersion": 1
},
{
"id": "63b3a751-5726-4821-8379-72af15226584",
"name": "Extract from Text",
"type": "n8n-nodes-base.extractFromFile",
"position": [
780,
680
],
"parameters": {
"options": {},
"operation": "text"
},
"typeVersion": 1
},
{
"id": "44a5980a-17aa-4a09-8040-a7d9804c7998",
"name": "Extract from JSON",
"type": "n8n-nodes-base.extractFromFile",
"position": [
780,
880
],
"parameters": {
"options": {},
"operation": "fromJson"
},
"typeVersion": 1
},
{
"id": "435f8016-43d1-4a2c-b507-50480867946b",
"name": "Embeddings OpenAI",
"type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
"position": [
1060,
1100
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"name": "<your credential>"
}
},
"typeVersion": 1.2
}
],
"active": true,
"settings": {
"timezone": "America/Los_Angeles",
"callerPolicy": "workflowsFromSameOwner",
"errorWorkflow": "lYgdNzdEapw2W8gK",
"executionOrder": "v1"
},
"versionId": "2d091814-9c7a-47ad-9339-e52089797c75",
"connections": {
"Switch": {
"main": [
[
{
"node": "Extract from PDF",
"type": "main",
"index": 0
}
],
[
{
"node": "Extract from Text",
"type": "main",
"index": 0
}
],
[
{
"node": "Extract from JSON",
"type": "main",
"index": 0
}
]
]
},
"Move File": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Download File": {
"main": [
[
{
"node": "Switch",
"type": "main",
"index": 0
}
]
]
},
"Search Folder": {
"main": [
[
{
"node": "Loop Over Items",
"type": "main",
"index": 0
}
]
]
},
"Loop Over Items": {
"main": [
[],
[
{
"node": "Download File",
"type": "main",
"index": 0
}
]
]
},
"Extract from PDF": {
"main": [
[
{
"node": "Postgres PGVector Store",
"type": "main",
"index": 0
}
]
]
},
"Schedule Trigger": {
"main": [
[
{
"node": "Search Folder",
"type": "main",
"index": 0
}
]
]
},
"Embeddings OpenAI": {
"ai_embedding": [
[
{
"node": "Postgres PGVector Store",
"type": "ai_embedding",
"index": 0
}
]
]
},
"Extract from JSON": {
"main": [
[
{
"node": "Postgres PGVector Store",
"type": "main",
"index": 0
}
]
]
},
"Extract from Text": {
"main": [
[
{
"node": "Postgres PGVector Store",
"type": "main",
"index": 0
}
]
]
},
"Default Data Loader": {
"ai_document": [
[
{
"node": "Postgres PGVector Store",
"type": "ai_document",
"index": 0
}
]
]
},
"Postgres PGVector Store": {
"main": [
[
{
"node": "Move File",
"type": "main",
"index": 0
}
]
]
},
"Recursive Character Text Splitter": {
"ai_textSplitter": [
[
{
"node": "Default Data Loader",
"type": "ai_textSplitter",
"index": 0
}
]
]
},
"When clicking \u2018Test workflow\u2019": {
"main": [
[
{
"node": "Search Folder",
"type": "main",
"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.
googleDriveOAuth2ApiopenAiApipostgres
Pro
For the full experience including quality scoring and batch install features for each workflow upgrade to Pro
About this workflow
Automatically convert documents from Google Drive into vector embeddings using OpenAI, LangChain, and PGVector — fully automated through n8n.
Source: https://n8n.io/workflows/3647/ — original creator credit. Request a take-down →
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