DotaBuildsAPI Built in Java using Play framework The API is built on Akka actor routing, and so is async, non-blocking, and backpressure aware. For more information, please see the documentation for Websockets and Akka Streams: http://doc.akka.io/docs/akka/current/java/stream/stream-flows-and-basics.html#stream-materialization http://doc.akka.io/docs/akka/current/java/stream/stream-integrations.html#integrating-with-actors