Start effect saved to brige by api or scene

I would like to start an effect ( full rainbow) trough the api , is this posible?

Another option would be that the effect switches on when i select a certain scene.

I found a solution:

I found a way:
each effect creates a virtual sensor

URL
/sensors/SENSORNUMER/state

BODY
{
“status”:1
}

In the api explorer uinder “resourcelinks” you can find your effect . Open it, Open subsection "links"find your sensor number