Support student questions via LINE using Gemini, Google Drive, and Slack

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1. Workflow Overview

Who is this for This workflow is built for tutoring schools, cram schools, and independent teachers who want to offer students 24/7 Q&A support via LINE — Japan's most widely used messaging app. No...

Best for

Support Chatbot automation workflows
AI RAG automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.respondtowebhook, n8n-nodes-base.set, n8n-nodes-base.googlesheets, n8n-nodes-base.aggregate, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatgooglegemini, @n8n/n8n-nodes-langchain.toolworkflow

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Ryo Sayama.

Original n8n.io source

1.1 Workflow description

Title: Support student questions via LINE using Gemini, Google Drive, and Slack
Workflow name: Support student questions via LINE using Gemini, Google Drive, and Slack

Who is this for

This workflow is built for tutoring schools, cram schools, and independent teachers who want to offer students 24/7 Q&A support via LINE — Japan's most widely used messaging app. No coding knowledge is required to set it up.

What this workflow does

When a student sends a question on LINE, an AI Agent (powered by Gemini) reads the conversation history stored in Google Sheets, searches your teaching materials in Google Drive, and replies with a clear explanation directly in LINE. If the agent cannot find a confident answer — for example, the topic is not covered in the materials or the question is too complex — it automatically sends an escalation alert to a designated Slack channel so a teacher can follow up personally. The agent also logs every question and its resolution status to Google Sheets, giving teachers a running record of each student's weak points and question frequency.

How to set up

Connect your LINE Messaging API credentials in n8n.
Create a Google Sheet with columns: student ID, timestamp, question, answer, resolved (yes/no).
Upload your teaching materials (PDF or text files) to a Google Drive folder.
Set the Drive folder ID and Sheet ID in the Set Fields node.
Add your Slack webhook URL for teacher escalation notifications.
Activate the workflow and share the LINE bot link with students.

Requirements

LINE Messaging API channel (free tier works) Google Drive folder with study materials (PDF or .txt) Google Sheets spreadsheet for conversation history and progress tracking Slack incoming webhook URL Gemini API key (free tier available)

How to customize

You can swap Google Drive for a different file source, adjust the Gemini prompt in the AI Agent node to change the explanation style (e.g., simpler language for younger students), or add more Slack channels to route questions by subject. The escalation threshold can be tuned by editing the condition in the If node.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - LINE Receiver

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2

Block 2 - Acknowledge LINE

Type / Role: n8n-nodes-base.respondToWebhook - respondToWebhook
Config choices: Version 1.1

Block 3 - Set Config

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 4 - Load Chat History

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.5

Block 5 - Aggregate History

Type / Role: n8n-nodes-base.aggregate - aggregate
Config choices: Version 1

Block 6 - Study Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 7 - Gemini Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1

Block 8 - Search Materials Tool

Type / Role: @n8n/n8n-nodes-langchain.toolWorkflow - toolWorkflow
Config choices: Version 2

Block 9 - Reply via LINE

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.2

Block 10 - Sticky Note — Overview

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 11 - Sticky Note — Input

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 12 - Sticky Note — Config

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 13 - Sticky Note — History

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 14 - Sticky Note — Agent

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note — Tools

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note — Reply

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	Support student questions via LINE using Gemini, Google Drive, and Slack
Complexity	advanced
Nodes	16
Categories	Support Chatbot, AI RAG
Author	Ryo Sayama
Published	29 Mar 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/14427/14427.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Support Chatbot workflows AI RAG workflows

Frequently asked questions

What does Support student questions via LINE using Gemini, Google Drive, and Slack do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Support Chatbot, AI RAG use case.

Ryo Sayama

6 workflows

Nodes

n8n-nodes-base.webhook n8n-nodes-base.respondtowebhook n8n-nodes-base.set n8n-nodes-base.googlesheets n8n-nodes-base.aggregate @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatgooglegemini @n8n/n8n-nodes-langchain.toolworkflow

Complexity

advanced

Published 29 Mar 2026

Likes 0

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Install path: /data/workflows/14427/14427.json

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Support student questions via LINE using Gemini, Google Drive, and Slack

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Who is this for

What this workflow does

How to set up

Requirements

How to customize

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - LINE Receiver

Block 2 - Acknowledge LINE

Block 3 - Set Config

Block 4 - Load Chat History

Block 5 - Aggregate History

Block 6 - Study Agent

Block 7 - Gemini Model

Block 8 - Search Materials Tool

Block 9 - Reply via LINE

Block 10 - Sticky Note — Overview

Block 11 - Sticky Note — Input

Block 12 - Sticky Note — Config

Block 13 - Sticky Note — History

Block 14 - Sticky Note — Agent

Block 15 - Sticky Note — Tools

Block 16 - Sticky Note — Reply

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions