Create Facebook posts and images with Google Gemini and Facebook Graph API

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1. Workflow Overview

This n8n template automates the creation of professional Facebook posts and visually striking illustrations directly from simple raw text. If you want to...

Best for

Content Creation automation workflows
Multimodal AI automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.manualtrigger, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatgooglegemini, @n8n/n8n-nodes-langchain.outputparserstructured, n8n-nodes-base.if, n8n-nodes-base.httprequest, @n8n/n8n-nodes-langchain.googlegemini

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Nguyễn Thiệu Toàn (Jay Nguyen).

Original n8n.io source

1.1 Workflow description

Title: Create Facebook posts and images with Google Gemini and Facebook Graph API
Workflow name: Create Facebook posts and images with Google Gemini and Facebook Graph API

This n8n template automates the creation of professional Facebook posts and visually striking illustrations directly from simple raw text. If you want to maintain a consistent social media presence without spending hours writing copy and designing images, this workflow is perfect for you.

How it works

Trigger & Configuration: The workflow begins with your raw text and brand guidelines, configured entirely within a single Set Context node.
AI Copywriting: A Google Gemini Agent analyzes the input and crafts an engaging Facebook caption—complete with hooks, emojis, and hashtags—alongside a highly detailed image generation prompt.
Image Processing: The workflow intelligently branches. If you provide an original image, Gemini edits and enhances it for social media. If no image is provided, Gemini generates a brand-new illustration from scratch.
Facebook Publishing: The final text and image are automatically published to your Facebook Fanpage via the Graph API.

How to use

Connect your Google Gemini API key in the AI Agent and Language Model nodes.
Connect your Facebook Graph API credentials in the Post to Facebook node.
Edit the Set Context node to update the raw_content, fanpage_name, content_style, and your specific page_id.
Run the workflow to automatically generate and publish your content.

Requirements

n8n Version: Built and tested on n8n 2.9.4+. (Note: It is highly recommended to update to the latest n8n version to use this workflow effectively).
Google Gemini API key (googlePalmApi credential).
Facebook Page Access Token with pages_manage_posts permissions.

Customizing this workflow

Automate the input: Swap the Manual Trigger for a Webhook, Google Sheets, or Telegram node to generate posts on the fly from external apps.
Expand to other platforms: Replace the Facebook node with a LinkedIn or X (Twitter) node to distribute your AI-generated content across multiple channels.

About the Author

Created by: Nguyễn Thiệu Toàn (Jay Nguyen) Email: [email protected] Website: nguyenthieutoan.com Company: GenStaff (genstaff.net) - AI Staff. Always On. Always Yours. Socials (Facebook / X / LinkedIn): @nguyenthieutoan More templates: n8n.io/creators/nguyenthieutoan

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 - Manual Trigger

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

Block 2 - Set Context

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

Block 3 - AI Agent: Write Post & Image Prompt

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3.1

Block 4 - Google Gemini Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatGoogleGemini - lmChatGoogleGemini
Config choices: Version 1.1

Block 5 - JSON Output Parser

Type / Role: @n8n/n8n-nodes-langchain.outputParserStructured - outputParserStructured
Config choices: Version 1.3

Block 6 - Select Image Mode

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

Block 7 - Download Image to Edit

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.4

Block 8 - Edit Original Image

Type / Role: @n8n/n8n-nodes-langchain.googleGemini - googleGemini
Config choices: Version 1.2

Block 9 - Generate New Image

Type / Role: @n8n/n8n-nodes-langchain.googleGemini - googleGemini
Config choices: Version 1.2

Block 10 - Post to Facebook

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

Block 11 - Post Result

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

Block 12 - Sticky Note - Main Overview

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

Block 13 - Sticky Note - Section 1

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

Block 14 - Sticky Note - Section 2

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

Block 15 - Sticky Note - Section 3

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

Block 16 - Sticky Note - Section 4

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

Block 17 - Sticky Note - Warning

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

Block 18 - Sticky Note - Author Message

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

3. Summary Table

Workflow	Create Facebook posts and images with Google Gemini and Facebook Graph API
Complexity	advanced
Nodes	18
Categories	Content Creation, Multimodal AI
Author	Nguyễn Thiệu Toàn (Jay Nguyen)
Published	18 May 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/15794/15794.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 Content Creation workflows Multimodal AI workflows

Frequently asked questions

What does Create Facebook posts and images with Google Gemini and Facebook Graph API do?

This n8n template automates the creation of professional Facebook posts and visually striking illustrations directly from simple raw text. If you want to...

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 Content Creation, Multimodal AI use case.

Nguyễn Thiệu Toàn (Jay Nguyen)

20 workflows

Nodes

n8n-nodes-base.manualtrigger n8n-nodes-base.set @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatgooglegemini @n8n/n8n-nodes-langchain.outputparserstructured n8n-nodes-base.if n8n-nodes-base.httprequest @n8n/n8n-nodes-langchain.googlegemini

Complexity

advanced

Published 18 May 2026

Likes 0

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Install path: /data/workflows/15794/15794.json

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Create Facebook posts and images with Google Gemini and Facebook Graph API

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

How to use

Requirements

Customizing this workflow

About the Author

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Manual Trigger

Block 2 - Set Context

Block 3 - AI Agent: Write Post & Image Prompt

Block 4 - Google Gemini Chat Model

Block 5 - JSON Output Parser

Block 6 - Select Image Mode

Block 7 - Download Image to Edit

Block 8 - Edit Original Image

Block 9 - Generate New Image

Block 10 - Post to Facebook

Block 11 - Post Result

Block 12 - Sticky Note - Main Overview

Block 13 - Sticky Note - Section 1

Block 14 - Sticky Note - Section 2

Block 15 - Sticky Note - Section 3

Block 16 - Sticky Note - Section 4

Block 17 - Sticky Note - Warning

Block 18 - Sticky Note - Author Message

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