Programmatically get IRC-compatible OAuth token for bot

[BarryCarlyon]

@oelna

It is still weird to me that a server-side application, such as a chat bot, requires this browser-based step to get startet, but at least with your help I got it to work.

To Twitch a “chat bot” is just a user account, it’s not marked “specially” as a bot.

So currently you can’t just get a token as the account is no different to a user, hence the manual browser step.

@oelna

I’m caching the access and refresh tokens in a config file, so I don’t have to refresh on every reconnect attempt of the bot.

Usually an access token is only valid for around four hours, so I don’t bother trying the access token, when my bot (re)starts it just uses the refresh proceedure and I don’t bother storing the access token beyond using it to login to chat. (As in most cases my bot’s don’t restart sooner than four hours anyway)