Automation library · Documents and files

Build enterprise RAG system with Gemini

Started by someone opening a chat with it, and works across Google Drive and Google Sheets. It hands the judgement calls to Gemini. 15 steps: a working afternoon to understand properly.

MediumCalls a model: Gemini

Download free
15 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 5Model 2Logic 1Service 7

The steps in the order they run, from what starts it.

  1. 1When clicking ‘Execute workflow’Manual triggerStarts it
  2. 2Google Drive - RAG SourceGoogle Drive triggerStarts it
  3. 3When chat message receivedChat triggerStarts it
  4. 4Google Gemini Chat ModelLm Chat Google GeminiModel
  5. 5Search ToolHttp Request ToolService
  6. 6WebhookWebhookStarts it
  7. 7Create Gemini File Search StoreHttp RequestService
  8. 8Get File Search StoreGoogle SheetsService
  9. 9Edit FieldsSetLogic
  10. 10AI Powered RAG AgentAgentModel
  11. 11Store File StoreGoogle SheetsService
  12. 12Initial File Upload to Gemini SearchHttp RequestService
  13. 13Respond to WebhookRespond To WebhookStarts it
  14. 14Download fileGoogle DriveService
  15. 15Upload the Actual FileHttp RequestService

How it's built

Starts on
Someone opening a chat with it
Steps
15
Size
Medium: a working afternoon
Connects to
Google Drive, Google Sheets
Model
Gemini

Questions

What does it need to run?

An n8n account, plus your own Google Drive and Google Sheets accounts, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone opening a chat with it.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 15 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 15 steps before you point it at anything that matters.