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Ai blog generator for Shopify products using Google Gemini and Google Sheets

MANISH KUMARMANISH KUMAR
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2/3/2026
AIReplicateLLMWebhookImage Processing
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This AI Blog Generator is an advanced n8n-powered automation workflow that leverages Google Gemini and Google Sheets to generate SEO-friendly blog articles for Shopify products. It automates the entire process — from fetching product data to creating structured HTML content — with zero manual effort.

💡 Key Advantages

Our AI Blog Generator offers five core advantages that make it the perfect solution for automated content creation:

  • 🔗 Shopify Product Sync — Automatically pulls product data (titles, descriptions, images, etc.) via Shopify API.
  • ✍️ SEO Blog Generation — Gemini generates blog titles, meta descriptions, and complete articles using product information.
  • 🗂️ Structured Content Output — Creates well-formatted HTML with headers and bullet points for seamless Shopify blog integration.
  • 📄 Google Sheets Integration — Tracks blog creation and prevents duplicate publishing using a centralized Google Sheet.
  • 📤 Shopify Blog API Integration — Publishes the generated blog to Shopify with a single API call.

⚙️ How It Works

The workflow follows a systematic 8-step process that ensures quality and efficiency:

Step-by-Step Process

  1. Manual Trigger – Start the workflow via a test trigger or scheduler.
  2. Fetch Products from Shopify – Retrieves all product details, including images and descriptions.
  3. Fix Input Format – Organizes and updates the input table using Code and Google Sheet nodes.
  4. Filter Duplicates – Ensures no previously used rows are processed again.
  5. Limit Control – Processes one row at a time and loops until all blogs are posted.
  6. Gemini AI Generation – Creates SEO-friendly blog content in HTML format from product data.
  7. HTML Structure Fix – Adjusts content for JSON compatibility by cleaning unsupported HTML tags.
  8. Article API Posting – Sends finalized blog content to Shopify for publishing or drafting.

🛠️ Setup Steps

Required Node Configuration

To implement this workflow, you'll need to configure the following n8n nodes:

  • Trigger Node: Start the workflow instantly.
  • Shopify Node: Fetch product details.
  • Google Sheet Node: Store input/output data and track blog creation status.
  • Code Node: Format data as required.
  • Filter Node: Remove used rows to avoid duplication.
  • Limit Node: Process one blog at a time.
  • Agent Node: Sends prompt to Gemini and returns parsed SEO-ready content.
  • HTTP Node: Posts content to Shopify via the API.

🔐 Credentials Required

Authentication Setup

Before running the workflow, ensure you have the following credentials configured:

  • Shopify Access Token – For fetching products and posting blogs
  • Gemini API Key – For AI-powered blog generation
  • Google Sheets OAuth – For logging and tracking workflow data

👤 Ideal For

Target Users

This automation workflow is specifically designed for:

  • Ecommerce teams automating blogs for hundreds of products
  • Shopify store owners boosting organic traffic effortlessly
  • Marketing teams building scalable, AI-driven content workflows

💬 Bonus Tip

Extensibility Features

The workflow is fully modular and highly customizable. You can easily extend it for:

  • Internal linking between related products
  • Multi-language translation for global markets
  • Social media sharing automation
  • Email marketing integration

All extensions can be implemented within the same n8n flow, making it a comprehensive content automation solution.

AI Blog Generator for Shopify Products using Google Gemini and Google Sheets

This n8n workflow automates the generation of blog posts for Shopify products. It leverages Google Sheets as a data source for product information and Google Gemini (via LangChain) to generate blog content. The workflow then publishes these generated blog posts to your Shopify store.

What it does

This workflow streamlines the process of creating and publishing blog posts for your Shopify products by:

  1. Triggering Manually: The workflow starts when manually executed.
  2. Reading Product Data from Google Sheets: It fetches product information from a specified Google Sheet.
  3. Filtering for New Products: It checks if a product already has a blog post generated by comparing it against existing Shopify blog posts.
  4. Generating Blog Content with AI: For new products, it uses Google Gemini (via an AI Agent and Structured Output Parser) to generate a blog post title and body based on the product description.
  5. Publishing to Shopify: It creates a new blog post in Shopify using the AI-generated content.
  6. Updating Google Sheet: It updates the Google Sheet to mark the product as having a generated blog post.

Prerequisites/Requirements

To use this workflow, you will need:

  • n8n Instance: A running n8n instance.
  • Google Sheets Account: A Google Sheets spreadsheet containing your product data (e.g., product name, description).
  • Google Gemini API Key: Access to Google Gemini through a LangChain credential in n8n.
  • Shopify Account: A Shopify store with API access configured for n8n.
  • n8n Credentials:
    • Google Sheets OAuth2 or API Key credential.
    • Shopify API Key credential.
    • LangChain Google Gemini Chat Model credential.

Setup/Usage

  1. Import the workflow: Download the JSON provided and import it into your n8n instance.
  2. Configure Credentials:
    • Google Sheets: Set up your Google Sheets credential. Ensure your spreadsheet is accessible and contains columns for product name, description, and a column to mark if a blog post has been generated (e.g., "Blog Post Generated").
    • Shopify: Configure your Shopify credential with the necessary API key and permissions to create blog posts.
    • Google Gemini Chat Model: Set up your LangChain Google Gemini Chat Model credential with your API key.
  3. Customize Nodes:
    • Google Sheets (Read): Update the "Spreadsheet ID" and "Sheet Name" to point to your product data.
    • AI Agent: Review and adjust the prompt to guide Gemini in generating relevant blog content based on your product data. Ensure the output schema in the "Structured Output Parser" matches the expected blog post structure (e.g., title, body).
    • Shopify (Create Blog Post): Map the AI-generated title and body to the corresponding fields for creating a new blog post.
    • Google Sheets (Update): Ensure this node correctly updates the "Blog Post Generated" column in your Google Sheet after a successful post.
  4. Activate the Workflow: Once configured, activate the workflow.
  5. Execute Manually: Click "Execute workflow" to run it. The workflow will process products from your Google Sheet, generate blog posts, and publish them to Shopify.

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