Wrap up
Play this lessonThis lesson comes with a chapter quiz.We designed a chat system with WebSockets for real-time messaging, stateless API servers, a KV store for history, service discovery, multi-device sync and presence. Extra talking points:
The rest of this lesson is part of Pro
Pro unlocks every lesson with its animation, code challenge and quiz, plus every interview problem. ₹299 a month or ₹1,999 a year.
See Pro