Should the client support custom events?

[apkrieg]

In the current implementation, all events are dispatched to OnMessage. This means you'd have to use your own conditional logic like a switch statement to direct traffic like:

public void OnMessage(ServerSentEvent ev)
{
    switch (ev.Event)
    {
        case "my-event":
            // ...
            break;
        default:
            // ...
            break;
    }
}

The proposal here is to add a CustomEvents dictionary to the client. If a key exists for the event type in the dictionary, it will be dispatched to that handler and not OnMessage. If no handler exists in the dictionary, OnMessage would be invoked.