🤖 DDC API AI Chat & Image Assistant — n8n Powered Intelligence

DDC API AI Chat & Image Assistant is a sophisticated automation architecture built on n8n that bridges the gap between conversational AI and generative media. By orchestrating complex logic flows, it routes user inquiries through high-performance LLMs or state-of-the-art image diffusion models, creating a unified assistant experience.

Built with LangChain nodes and custom API integrations, this project demonstrates the power of low-code platforms in deploying production-ready AI services.

🛠️ Technology Stack

✨ Features at a Glance

🧠 Intelligent Chat Orchestration

Dual-Path Routing: An intelligent agent logic that determines whether to respond with text or initiate an image generation task.
LLM Contextualization: Integrates with gpt-4o-mini equivalents for rapid, personality-driven dialogue.
Custom Prompt Engineering: Uses specialized system prompts to ensure the AI maintains a consistent tone and helpfulness.

🎨 Creative AI Pipeline

FLUX.1-Kontext Integration: Connects to advanced diffusion models to generate high-fidelity 1024x1024 or 512x512 images on demand.
Dynamic Asset Delivery: Automatically parses JSON responses to extract raw binary or URL-based image data for immediate user viewing.

🔌 Developer-Centric Design

Bearer Auth Security: Implements robust API authentication headers for all external AI provider calls.
Node-Based Modularity: Every segment of the logic is modular, allowing for easy swapping of models (e.g., GPT-4 to Claude 3.5).
Automated Logging: Real-time workflow tracking within n8n for debugging and usage analytics.

📁 Workflow Architecture

n8n-workflow/
├── Webhook Trigger      # Entry point for user messages
├── Model Switch Node    # Logic to branch (Text vs Image)
├── LangChain Chain      # Core LLM processing engine
├── FLUX Image Node      # Custom HTTP Request for image gen
├── Response Formatter   # JavaScript node for cleaning JSON
└── Success Webhook      # Final delivery back to the client

🚀 Installation & Setup

1. Prerequisites

n8n Desktop or n8n Cloud
DDC API / AI Provider Key

2. Workflow Import

Download the workflow.json from this repository.
In n8n, click “Add Workflow” -> “Import from File”.
Select the workflow.json.

3. Connection Config

Locate the HTTP Request nodes (Text and Image).
Update the “Authentication” section with your Bearer Token.
Set the target URLs to your specific AI provider’s endpoints.

4. Activation

Click the “Execute Workflow” button to enter testing mode.
Send a test payload to the webhook URL to verify the response.

📄 License

Distributed under the MIT License.

Designed & Developed by Aditya (aka aditya-2129)