More and more, users are coming to expect real-time features from the web apps they use. Whether it’s a chat, a live game, a shared document or a push notification, we as developers are finding ourselves needing to go beyond standard HTTP requests to support real-time functionality. Phoenix, the web framework for Elixir, has real-time capability out of the box. It’s fast, highly concurrent (thanks to the Erlang VM), fault-tolerant and super friendly towards distributed systems.

https://timber.io/blog/building-a-real-time-app-with-phoenix/