▲ 5 ▼ Announcing RxGo v2

TL;DR;

• ReactiveX is an API for asynchronous programming based on the observer pattern.

• RxGo is the official Go implementation of ReactiveX (a cousin of RxJS, RxJava, etc.).

• There are +50 new operators and multiple new features (hot vs cold observable, connectable observable, backpressure, etc.)

• Yes, Go has already great concurrency primitives and yes, there is still no generics. Nonetheless, RxGo may still be worth a look ;)