Server-Sent Events for ServiceStack

A simple, low-protocol-overhead implementation of Server-Sent Events implemented as a ServiceStack plugin.

The bundled ServiceStack Server-Sent Events imlementation adds additional data details and targets the rapid development of a certain high-level use cases, like the demo Chat app.

This library is inteded to be more bare-bones, allowing an overhead-free implementation, with various options to help build more complicated implementations, such as groups.

Usage

Build and reference the DLL in your ServiceStack project.

Add the plugin in your AppHost.Configure method:

 Plugins.Add(new SimpleServerEventsFeature()
 {
     OnConnected = (client, metaData) => { },
     OnCreated = (client, req) => { },
     StreamPath = "/sse",
     Timeout = new TimeSpan(0, 0, 30)
 });

The client library is also included, under JsonEventSourceClient.
It leverages the ServiceStack.Text JSON libraries to provide strongly-typed, delegate callbacks when events are received.

JsonEventSourceClient client = new JsonEventSourceClient("http://localhost:1337/sse");
client.ListenFor<ExampleDTO>("example", (eventObj, dto) =>
{
    // dto is an instance of the ExampleDTO class   
});

The client library is inspired by erizet's EventSource4Net library.