example actor

ExampleActor.cs

public async Task ReceiveAsync(IContext context)
        {
            switch (context.Message)
            {
                //...other handlers removed for brevity
                case Multiply msg:
                    await Persistence.PersistEventAsync(new Multiplied { Amount = msg.Amount });
                    break;
                case Multiplied msg:
                    _state.Value = _state.Value * msg.Amount;
                    break;
            }
        }