Twitch EventSub
Twitch EventSub is a WebSocket-based notification system provided by Twitch that allows developers to receive real-time updates about events on the Twitch platform, such as stream starts, follows, subscriptions, and channel points redemptions. It replaces the older PubSub system and offers improved reliability, scalability, and a more modern API design for building interactive Twitch integrations like chatbots, alerts, and analytics tools.
Developers should learn Twitch EventSub when building applications that need to react to live Twitch events, such as creating custom chatbots for moderation or engagement, setting up stream alerts for overlays, or tracking channel metrics in real-time. It is essential for integrating with the Twitch ecosystem, as it provides a standardized way to handle events without polling the API, reducing latency and server load.