Chromadb Vector RAG Local Pipeline

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": "chromadb-vector-RAG-Local-pipeline",
  "nodes": [
    {
      "parameters": {
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        },
        "triggerOn": "specificFolder",
        "folderToWatch": {
          "__rl": true,
          "value": "1dTMnfOST6aeO66pWusEyNPTrTs9dELTy",
          "mode": "list",
          "cachedResultName": "VA knowledge-base",
          "cachedResultUrl": "https://drive.google.com/drive/folders/1dTMnfOST6aeO66pWusEyNPTrTs9dELTy"
        },
        "event": "fileCreated",
        "options": {}
      },
      "type": "n8n-nodes-base.googleDriveTrigger",
      "typeVersion": 1,
      "position": [
        -336,
        -32
      ],
      "id": "b7d05619-6d5d-4619-bb4f-7c4ac0677e74",
      "name": "Google Drive Trigger",
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "operation": "download",
        "fileId": {
          "__rl": true,
          "value": "={{ $json.id }}",
          "mode": "id"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.googleDrive",
      "typeVersion": 3,
      "position": [
        -160,
        -32
      ],
      "id": "e905ba15-130d-44b9-9c9b-7155d715367f",
      "name": "Download file",
      "credentials": {
        "googleDriveOAuth2Api": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "operation": "write",
        "fileName": "=/home/admirer/rag_pipeline/knowledge-base/{{ $binary.data.fileName }}",
        "options": {
          "append": false
        }
      },
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [
        16,
        -32
      ],
      "id": "e484af63-09d4-4e48-990c-c647727ac623",
      "name": "Save knowledge to local directory"
    },
    {
      "parameters": {
        "command": "=bash -c \"cd /home/admirer/rag_pipeline && source source/bin/activate && python add_data.py '{{ $json.name }}'\""
      },
      "type": "n8n-nodes-base.executeCommand",
      "typeVersion": 1,
      "position": [
        208,
        -32
      ],
      "id": "90d4e2ce-0c9d-4bcd-b807-22cfb8755cf8",
      "name": "local Chroma-vector-db"
    },
    {
      "parameters": {
        "jsCode": "return items.map(item => {\n  const parsed = JSON.parse(item.json.stdout);\n  return { json: parsed };\n});"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        400,
        -32
      ],
      "id": "c1456720-8dc4-49c6-8f7b-b0c120b0fd32",
      "name": "parse-stdout-res"
    }
  ],
  "connections": {
    "Google Drive Trigger": {
      "main": [
        [
          {
            "node": "Download file",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Download file": {
      "main": [
        [
          {
            "node": "Save knowledge to local directory",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Save knowledge to local directory": {
      "main": [
        [
          {
            "node": "local Chroma-vector-db",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "local Chroma-vector-db": {
      "main": [
        [
          {
            "node": "parse-stdout-res",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "5bc0bf97-abad-4242-8802-95d78fac139d",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "k8t3FJCLCMt6UOp3",
  "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.

• googleDriveOAuth2Api

About this workflow

chromadb-vector-RAG-Local-pipeline. Uses googleDriveTrigger, googleDrive, readWriteFile, executeCommand. Event-driven trigger; 5 nodes.

Source: https://github.com/admirerbrown/AI-chatbot/blob/main/n8n-workflows/chromadb-vector-RAG-Local-pipeline.json — original creator credit. Request a take-down →

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