n8n-nodes-comfyui-ex

This package provides n8n nodes to integrate with ComfyUI - A powerful and modular stable diffusion GUI with a graph/nodes interface.

Features

• Execute ComfyUI workflows directly from n8n
• Support for workflow JSON import
• Automatic image retrieval from workflow outputs
• Progress monitoring and error handling
• Support for API key authentication
• Configurable timeout settings

Prerequisites

• n8n (version 1.0.0 or later)
• ComfyUI instance running and accessible
• Node.js 16 or newer

Installation

npm install n8n-nodes-comfyui-ex

Node Configuration

ComfyUI Node

This node allows you to execute ComfyUI workflows and retrieve generated images.

Settings

• API URL: The URL of your ComfyUI instance (default: http://127.0.0.1:8188)
• API Key: Optional API key if authentication is enabled
• Workflow JSON: The ComfyUI workflow in JSON format

Outputs

The node outputs an array of generated images with:

• filename: Name of the generated image file
• subfolder: Subfolder path if any
• data: Base64 encoded image data

Usage Example

1. Export your workflow from ComfyUI as JSON
2. Create a new workflow in n8n
3. Add the ComfyUI node
4. Paste your workflow JSON
5. Configure the API URL
6. Execute and retrieve generated images

Error Handling

The node includes comprehensive error handling for:

• API connection issues
• Invalid workflow JSON
• Execution failures
• Timeout conditions (default 20 minutes)

Development

# Install dependencies
npm install

# Build
npm run build

# Test
npm run test

# Lint
npm run lint

License

MIT