Reactors

Reactors are classes that holds methods that react to certain events. By implementing the interface IReactor, it will automatically be discovered at startup and the system will figure out which methods will be handling what events by convention.

using Cratis.Chronicle.Reactors;

public class MyReactor : IReactor
{
}

The methods you add onto the class will be discovered by convention and the system recognizes the following signatures, name of the method(s) can be anything:

public void SynchronousMethodWithoutContext(MyEvent @event);
public void SynchronousMethodWithContext(MyEvent @event, EventContext context);
public Task AsynchronousMethodWithoutContext(MyEvent @event);
public Task AsynchronousMethodWithContext(MyEvent @event, EventContext context);

Note: Only public methods are supported without any return types. Also worth noting is that you can't have two methods handling the same event as the system would not know how to recover if one of them fails.