PubSub broadcast, listen not called

Extensions
2

I’ll update with my own answer.

I found (RTFM) that the channelId can be obtained from the Object passed to onAuthorized

twitch.onAuthorized(function (auth) {
    isAuthed = true;
    console.log('The JWT that will be passed to the EBS is', auth.token);
    console.log('The channel ID is', auth.channelId);
});

I then passed this channelId to my makeServerToken function. Ensuring that it’s forced to a string.