Compare LINE palm images and log Gemini health insights to Google Sheets

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1. Workflow Overview

AI Palm Health Tracker – Overview This workflow receives palm images sent via LINE and provides AI generated health insights. Step by step process: 1.User sends a palm image via LINE 2.Webhook rece...

Best for

Document Extraction automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.webhook, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.lmchatgooglegemini, n8n-nodes-base.if, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.chainllm, n8n-nodes-base.googledrive, n8n-nodes-base.code

Source and attribution

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

Original n8n.io source

1.1 Workflow description

Title: Compare LINE palm images and log Gemini health insights to Google Sheets
Workflow name: Compare LINE palm images and log Gemini health insights to Google Sheets

AI Palm Health Tracker – Overview

This workflow receives palm images sent via LINE and provides AI-generated health insights.

Step-by-step process:

1.User sends a palm image via LINE 2.Webhook receives the image 3.Image is saved to Google Drive 4.Past records are checked in Google Sheets

If this is the first submission: → AI will perform a palm reading

If previous records exist: → Retrieve the latest saved image → Validate that two images are available → AI performs a comparison analysis

All results are saved in Google Sheets and sent back to the user via LINE.

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_trigger

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

Block 2 - config

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

Block 3 - Google Gemini Chat Model

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

Block 4 - PIC_check

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 5 - LINE_input

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 6 - LINE_output

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 7 - Analyze

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

Block 8 - PIC_upload

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 9 - Massege_check

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

Block 10 - DATA_upload

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 11 - PIC_Search

Type / Role: n8n-nodes-base.googleDrive - googleDrive
Config choices: Version 3

Block 12 - DATA_download

Type / Role: n8n-nodes-base.googleSheets - googleSheets
Config choices: Version 4.7

Block 13 - Get latest DATA

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

Block 14 - Check Previous Record Exists

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 15 - Google Gemini Chat Model1

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

Block 16 - First_Analyze

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

Block 17 - Reply_Text_Instructions

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.3

Block 18 - DATA_counting

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

Block 19 - Validate Image Pair

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 3.2

Block 20 - Sticky Note

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

Block 21 - Sticky Note1

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

Block 22 - Sticky Note2

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

Block 23 - Sticky Note3

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

Block 24 - image_counting

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

Showing the first 24 of 27 workflow blocks. Download the JSON for the full node graph.

3. Summary Table

Workflow	Compare LINE palm images and log Gemini health insights to Google Sheets
Complexity	advanced
Nodes	27
Categories	Document Extraction, AI Chatbot
Author	Hiroshi Hashimoto
Published	24 Feb 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/13646/13646.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 Document Extraction workflows AI Chatbot workflows

Frequently asked questions

What does Compare LINE palm images and log Gemini health insights to Google Sheets 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 Document Extraction, AI Chatbot use case.

Hiroshi Hashimoto

3 workflows

Nodes

n8n-nodes-base.webhook n8n-nodes-base.set @n8n/n8n-nodes-langchain.lmchatgooglegemini n8n-nodes-base.if n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.chainllm n8n-nodes-base.googledrive n8n-nodes-base.code

Complexity

advanced

Published 24 Feb 2026

Likes 0

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Install path: /data/workflows/13646/13646.json

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Compare LINE palm images and log Gemini health insights to Google Sheets

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

AI Palm Health Tracker – Overview

Step-by-step process:

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - LINE_trigger

Block 2 - config

Block 3 - Google Gemini Chat Model

Block 4 - PIC_check

Block 5 - LINE_input

Block 6 - LINE_output

Block 7 - Analyze

Block 8 - PIC_upload

Block 9 - Massege_check

Block 10 - DATA_upload

Block 11 - PIC_Search

Block 12 - DATA_download

Block 13 - Get latest DATA

Block 14 - Check Previous Record Exists

Block 15 - Google Gemini Chat Model1

Block 16 - First_Analyze

Block 17 - Reply_Text_Instructions

Block 18 - DATA_counting

Block 19 - Validate Image Pair

Block 20 - Sticky Note

Block 21 - Sticky Note1

Block 22 - Sticky Note2

Block 23 - Sticky Note3

Block 24 - image_counting

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