I made a request on the uservoice forum for this endpoint to be in Helix, and it was subsequently closed, stating we had to use Webhooks for that now.
This is all fine and dandy if your application that uses the Twitch API is web/browser based. But if you have a desktop application that uses the Twitch API, and your application cannot support acting as a webserver for the callbacks from Webhooks, then I guess we’re screwed 