🎨 AI Image Generation & CDN Hosting Automation with Gemini Imagen 3

Streamline your creative production with this high-performance image generation and hosting pipeline. This workflow automates the transition from raw creative prompts to hosted assets, leveraging Gemini Imagen 3 for photorealistic visual generation and an automated Upload to URL sequence to deploy images directly to your CDN.

🎯 What This Workflow Does

This template is designed to handle two high-value commercial creative tasks via a single Webhook endpoint:

🌍 Pipeline 1: Localized Marketing Campaigns

Perfect for global brands, this path takes a master marketing image and recreates it with embedded text accurately translated into a target language. The system preserves your original branding, fonts, and visual hierarchy while ensuring localized messaging is sharp and professional.

🛍️ Pipeline 2: High-Fidelity Product Mockups

Generate photorealistic e-commerce assets instantly. By providing a product type and color scheme, Imagen 3 creates studio-quality mockups with realistic textures and lighting. This is ideal for visualizing new apparel, packaging, or merchandise without a physical photoshoot.

✨ Key Features

• Automated Base64 Processing: Includes custom logic to decode Gemini's base64 output into n8n binary files (PNG) automatically, removing manual file handling.
• Direct CDN Deployment: Uses the built-in Upload to URL node to PUT your generated images directly to a presigned URL, making them instantly available via a public link.
• Intelligent Prompt Engineering: Dedicated code nodes translate simple input parameters (like jobType or targetLanguage) into detailed, optimized prompts for the highest quality AI output.
• Scalable Webhook Architecture: Centralizes your image generation tasks into a single API endpoint that routes traffic based on your specific business needs.

💼 Perfect For

• Digital Agencies: Rapidly producing localized ad variants for international clients.
• E-commerce Store Owners: Visualizing custom products or "on-demand" merchandise.
• Social Media Managers: Creating consistent, high-quality visual content for daily posts.
• Product Designers: Prototyping colorways and branding on various item types.

🔧 What You'll Need

Required Integrations

• Google AI (Gemini) API Key: Required for access to the Imagen 3.0 model.
• CDN/Storage Provider: Access to a service (like AWS S3 or Google Cloud Storage) that provides presigned PUT URLs for image hosting.

⚙️ Configuration Steps

1. API Credentials: Set up an HTTP Header Auth credential named Google AI Header Auth using your key from AI Studio.
2. Endpoint Setup: The template is pre-configured to use the imagen-3.0-generate-001 predict endpoint.
3. URL Mapping: After import, update the Upload to URL nodes and response nodes with your specific CDN domain and presigned URL logic.

Ready to automate your creative assets? Import this template and connect your Gemini API key to start generating and hosting professional images in seconds!