One single IConsumer<Fault<TInterface>> for several IConsumer<TInterface>

[Tobias Moe Thorstensen]

Hi!

I have a question regarding Consumers & Exception handling in consumers. 

Consider this working example:

public interface IFoo
{}

public class Foo : IFoo
{}

public class FooConsumer : IConsumer<IFoo>
{
    public Task Consume(ConsumeContext<IFoo> context)
    {
      throw new Exception($"Exception from {this}");
    }
}

public class FooConsumerFault : IConsumer<Fault<IFoo>>
{
    public Task Consume(ConsumeContext<Fault<IFoo>> context)
    {
      var faults = context.Message.Exceptions;
      Console.WriteLine(faults);


      return Task.CompletedTask;
    }
}

In our case, we will end up with alot of different consumers and our aim is to have just one FaultConsumer, something like this:

public interface IBase {}

public interface IFoo : IBase
{}

public class Foo : IFoo
{}

public class FooConsumer : IConsumer<IFoo>
{
    public Task Consume(ConsumeContext<IFoo> context)
    {
      throw new Exception($"Exception from {this}");
    }
}

public class BaseConsumerFault : IConsumer<Fault<IBase>>
{
    public Task Consume(ConsumeContext<Fault<IBase>> context)
    {
      var faults = context.Message.Exceptions;
      Console.WriteLine(faults);
      return Task.CompletedTask;
    }
}

Is this possible to achieve? 

Thanks! 

[Chris Patterson]

Just consume Fault, without any generic type. This way you can have one consumer. You can also use context.TryGetMessage() to cast to specific Fault<T> in your consumer if you like

Within the regular Fault consumer. 

__
Chris Patterson

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[Tobias Moe Thorstensen]

Thanks alot! 

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