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 →

Download .json

{
  "name": "KB",
  "nodes": [
    {
      "parameters": {
        "formTitle": "File Upload",
        "formFields": {
          "values": [
            {
              "fieldLabel": "file",
              "fieldType": "file",
              "acceptFileTypes": ".pdf",
              "requiredField": true
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.formTrigger",
      "typeVersion": 2.3,
      "position": [
        0,
        0
      ],
      "id": "155f12b9-08fd-458e-926e-5bb36b974e59",
      "name": "On form submission"
    },
    {
      "parameters": {
        "mode": "insert",
        "tableName": {
          "__rl": true,
          "value": "documents",
          "mode": "list",
          "cachedResultName": "documents"
        },
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.vectorStoreSupabase",
      "typeVersion": 1.3,
      "position": [
        208,
        0
      ],
      "id": "b92f752c-efed-4062-817a-0d2e0adf231d",
      "name": "Supabase Vector Store",
      "credentials": {
        "supabaseApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.embeddingsOpenAi",
      "typeVersion": 1.2,
      "position": [
        112,
        192
      ],
      "id": "76f4fd85-22e2-462f-8384-33c62ac73bcc",
      "name": "Embeddings OpenAI",
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "dataType": "binary",
        "textSplittingMode": "custom",
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.documentDefaultDataLoader",
      "typeVersion": 1.1,
      "position": [
        352,
        208
      ],
      "id": "f94518a3-1c3c-43b3-8afc-c0b4f342c6cc",
      "name": "Default Data Loader"
    },
    {
      "parameters": {
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.textSplitterRecursiveCharacterTextSplitter",
      "typeVersion": 1,
      "position": [
        352,
        416
      ],
      "id": "6bc9172e-a697-4f03-b452-32506ea0b45c",
      "name": "Recursive Character Text Splitter"
    }
  ],
  "connections": {
    "On form submission": {
      "main": [
        [
          {
            "node": "Supabase Vector Store",
            "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
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "385f9a79-cb80-4da1-b956-cacaee7865d9",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "TekIKptVLsLJw55E",
  "tags": []
}

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.

openAiApi
supabaseApi

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About this workflow

KB. Uses formTrigger, vectorStoreSupabase, embeddingsOpenAi, documentDefaultDataLoader. Event-driven trigger; 5 nodes.

Source: https://github.com/umair842/ghl-n8n-ai-lead-automation-laverton/blob/70ea6cb9b5e8acd1a52dc4d736eb4ec8740049a4/workflows/0-KB.json — original creator credit. Request a take-down →

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The workflow JSON

Credentials you'll need

About this workflow

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