# Validate n8n JSON workflows with LangChain: Google Drive: n8n workflow

> 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...

Source: https://millionrounds.com/workflow/validate-n8n-json-workflows-with-langchain-google-drive (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Data collection](https://millionrounds.com/workflows?category=Data+collection#library)

# 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.

Medium Calls a model: Azure OpenAI Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fvalidate-n8n-json-workflows-with-langchain-google-drive)

**9 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**1** Loop or waits

**2** Services it connects to

## The flow

Starts it 1 Model 3 Logic 1 Service 4

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

- 1 **When clicking ‘Execute workflow’** Manual trigger *Starts it*
- 2 **Azure OpenAI Chat Model** Lm Chat Azure Open Ai *Model*
- 3 **Simple Memory** Memory Buffer Window *Model*
- 4 **Search files and folders** Google Drive *Service*
- 5 **AI Agent** Agent *Model*
- 6 **Loop Over Items1** Split In Batches *Logic*
- 7 **Append or update row in sheet** Google Sheets *Service*
- 8 **Download file** Google Drive *Service*
- 9 **Extract from File** Extract From File *Service*

## 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.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fvalidate-n8n-json-workflows-with-langchain-google-drive)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Google Drive](https://millionrounds.com/workflows?service=Google+Drive#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)

## Workflows like it

Also data collection, with the same services where possible, closest in size first.

- [**AI Real Estate Listing Generator: Photo to Description** 9 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/ai-real-estate-listing-generator-photo-to-description)
- [**AI client onboarding agent: Auto welcome email generator** 9 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/ai-client-onboarding-agent-auto-welcome-email-generator)
- [**AI client onboarding agent: auto welcome email generator** 9 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/ai-client-onboarding-agent-auto-welcome-email-generator-2)
- [**Analyze Amazon purchase trends with Bright Data and OpenAI** 9 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/analyze-amazon-purchase-trends-with-bright-data-and-openai)
- [**Analyze skill gaps for target jobs with BrowserAct** 9 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/analyze-skill-gaps-for-target-jobs-with-browseract)
- [**Analyze skill gaps from LinkedIn jobs with BrowserAct** 9 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/analyze-skill-gaps-from-linkedin-jobs-with-browseract)