ComfyUI Webhook Notifier

A simple ComfyUI custom node that sends webhook notifications when images are generated. Perfect for integrating your image generation workflow with external services or your own backend.

Features

• Sends webhook notifications when images are generated
• Attaches the generated image to the webhook request
• Includes customizable metadata and external ID support
• Saves generated images locally with metadata

Installation

1. Clone this repository into your ComfyUI custom nodes directory:

cd ComfyUI/custom_nodes
git clone https://github.com/yourusername/comfyui-webhook-http

2. Install the required dependencies:

pip install -r requirements.txt

3. Restart ComfyUI

Usage

1. Add the "Webhook Image Saver" node to your workflow
2. Connect it to your image generation output
3. Configure the webhook settings:
   • webhook_url: Your endpoint that will receive the notification
   • filename_prefix: Prefix for saved image files (default: "ComfyUI")
   • metadata: Optional JSON metadata to include with the webhook
   • external_uid: Optional identifier for tracking generations or sessions

Webhook Payload

The webhook endpoint will receive a POST request with the following data:

{
    "metadata": "your_custom_metadata",
    "external_uid": "your_tracking_id",
    "images": [
        {
            "filename": "ComfyUI_00001_.png",
            "subfolder": "ComfyUI",
            "type": "output"
        }
    ]
}

The generated image will be attached as a file in the request.

Example Usage

Here's a basic example of how to use the node in your workflow:

1. Connect your image generation output to the "Webhook Image Saver" node
2. Set your webhook URL (e.g., https://api.yourservice.com/webhook)
3. Add any custom metadata or tracking IDs
4. Run your workflow - the webhook will be triggered automatically when images are generated

License

Apache License 2.0