Automation library · Data collection

Validate n8n JSON workflows with LangChain: Google Drive

Started by an event in a connected app, and works across Google Drive and Google Sheets. It puts Azure OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 9 steps, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: Azure OpenAIRetrieval

9 stepsMedium: a working afternoon
0Branches: places the flow splits
1Loop or waits
2Services it connects to

The flow

Starts it 1Model 3Logic 1Service 4

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

  1. 1When clicking ‘Execute workflow’Manual triggerStarts it
  2. 2Azure OpenAI Chat ModelLm Chat Azure Open AiModel
  3. 3Simple MemoryMemory Buffer WindowModel
  4. 4Search files and foldersGoogle DriveService
  5. 5AI AgentAgentModel
  6. 6Loop Over Items1Split In BatchesLogic
  7. 7Append or update row in sheetGoogle SheetsService
  8. 8Download fileGoogle DriveService
  9. 9Extract from FileExtract From FileService

How it's built

Starts on
An event in a connected app
Steps
9, 1 loop or waits
Size
Medium: a working afternoon
Connects to
Google Drive, Google Sheets
Model
Azure OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

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

What starts it?

It starts on an event in a connected app.

Does it use AI?

Yes. It calls Azure OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 9 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 9 steps before you point it at anything that matters.