Web UI for Smart Hub

Hi @sarthak.jain, sorry for the delayed reply, it’s been a busy last few days.

Besides the SmartThings Developer link JD provided you, legacy documentation for SmartApps can be found here:

https://docs.smartthings.com/en/latest/smartapp-developers-guide/index.html

Keep in mind though, this is for Groovy apps, and ST is phasing that out, as well as the IDE, as part of those platform changes I mentioned.

Here’s another good Groovy SmartApp you can reference as an example: