Support:
This Bukkit plugin is part of the Twitch4J API project.
This code can easily be adapted for a different minecraft version and will also work on other platforms like (Paper)Spigot.
To obtain a client_id and client_secret to populate in config.yml, you can create an app here.
Alternatively, you can provide oauth_token, which can be generated here if you do not wish to host the authentication process yourself.
At least one of these must be provided to interact with the Helix API, which is used to track follows and stream state.
To read chat, no token is necessary, but in order to send messages to chat, an oauth_token with the chat:edit scope is.