I'd like to create an extension that interacts with carts. Essentially, I want to be able to make API calls out to an external service when a user adds or removes items from a cart.
I've noticed that there are no APIs in SquareSpace to interact with carts before orders are placed. I'd like to find a way to get this information. Does anyone know if there is any possible way to do this?
At this point, I'm pretty new to SquareSpace, so I don't know even what I don't know. I think I want to build an extension that can somehow interact with cart data, but I don't even see much documentation about building extensions. Is there any info out there about extension development?
Thanks for any help you can give!