@BarryCarlyon really appreciate the help!
I tride:
const payload = { “channel_id”: “”+channel_id, “role”: “broadcaster”, “exp”: exp };
but it still no luck… 
@BarryCarlyon really appreciate the help!
I tride:
const payload = { “channel_id”: “”+channel_id, “role”: “broadcaster”, “exp”: exp };
but it still no luck…