Linking smartthings with my insignia light switch? [Developer]

Can someone send me a link or write a guide on how to integrate my new insignia Wifi smart switch to smartthings? I’m under the understanding that as a developer, I can write a smart app that will allow me to sign in under my insignia cloud account, giving me full access to all of my smart devices linked to that account. Is this correct? If so, how could I go about this?

See the WiFi Device FAQ. ( this is a clickable link) Other community members have done it using a homebridge server as a man in the middle. It’s not particularly easy, but it can be done.