PubSub: ERR_BADAUTH even if scope is ok

It seems it does. Try adding it and you’ll see you receive messages with the topic following.channelid .

I checked the code you gave here. Thanks a lot. And I replaced my v5 /channel api call with the helix /users one, and now it works without the old scope channel_read.

It seems ok now. Thanks a lot.

But can you check for the following topic please ?