Feature Request: Add API Support

[kft334]

Many people use the API instead of the webui. ControlNet is a significant development so API support should be considered. Thanks

[spinagon]

I agree, API access is necessary for bot development.

[killfrenzy96]

I would love this. I want to add ControlNet to my own bot too.

[Ryu1845]

Here's how it's done in the dreambooth extension if someone wants inspiration. https://github.com/d8ahazard/sd_dreambooth_extension/blob/main/scripts/api.py

[Mikubill]

Looks nice. PR welcome or will implement later if no one does

[devilismyfriend]

definitely need API integration soon, this extension is too good.

[chrisbward]

Super excited for this!