Centrifuge
Real-time messaging library for Go with scalability in mind
...Centrifuge library is a real-time core of Centrifugo server. It's a general-purpose real-time messaging library for Go programming language. Real-time messaging can help create interactive applications where events are delivered to online users with minimal delay. Chats apps, live comments, multiplayer games, real-time data visualizations, collaborative tools, etc. can all be built on top of Centrifuge library. The library is built on top of efficient client-server protocol schema and exposes various real-time oriented primitives for a developer.