Outbox for routing slip in statemachine?

Question

In one of my statemachine actions I create a routing slip to carry out a series of commands. This is done by calling

_busControl.Execute(routingSlip);

But sometimes the saga commit fails due to concurrency issues. Is there a "outbox" like mechanism to defer sending the routing slip to the bus until the saga is committed successfully?

score 0 · Accepted Answer · answered Nov 14 '19 at 14:23

0

Yes, you can use the outbox to defer sends:

http://masstransit-project.com/MassTransit/usage/exceptions.html#outbox

cfg.ReceiveEndpoint("input-queue", e =>
{
    e.UseInMemoryOutbox();

    e.StateMachineSaga(...);
});

You will, however, need to execute the routing slip using the ConsumeContext in the state machine event handler, and not using _busControl. IBus or IBusControl should never be used inside a consumer. The documentation has more details.

answered Nov 14 '19 at 14:23

Chris Patterson

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Thanks for your help. I got it working with `var consumerContext = ctx.CreateConsumeContext(); await consumerContext.Execute(routingSlip);` where ctx is the BehaviorContext – zyq Nov 15 '19 at 04:05

Outbox for routing slip in statemachine?

1 Answers1