# sync [](https://pub.dartlang.org/packages/angel_sync) [](https://travis-ci.org/angel-dart/sync) Easily synchronize and scale WebSockets using package:pub_sub. # Usage This package exposes `PubSubSynchronizationChannel`, which can simply be dropped into any `AngelWebSocket` constructor. Once you've set that up, instances of your application will automatically fire events in-sync. That's all you have to do to scale a real-time application with Angel! ```dart await app.configure(new AngelWebSocket( synchronizationChannel: new PubSubSynchronizationChannel( new pub_sub.IsolateClient('<client-id>', adapter.receivePort.sendPort), ), )); ```