How do I find a lightswitch active/deactive url in smart things?

i have Blue Iris and Smartthings… I have a dozen light switches installed and a dozen plus cameras, I understand I can have the camera trigger a url on alert… my questions is how do i get a url to trigger smart things to turn on a light?

I believe that the App “Cloud Interface” which is listed with instructions in the link below can grab the end points of devices. Well, I know it can but you will need the Classic App to install it.