How to develop a bridge to take homeassistant like controller entities to smart things app?

I am a newbie to the smarting’s ecosystem.
I wonder is it possible to develop a bridge with other controllers to take all devices to the smarting’s app?.
I assume that Philips hue hub is just doing that!.
I am researched a lot but I couldn’t find a way to add multiple devices at ones to the smart tings app.
Is it possible?.
What method I need to achieve this on the “Samsung developer workspace” “SmartThings Cloud Connector”?.
If you have any sample projects just like this please share it with me.
Thank you.