Aspire masstransit sample

[baotoq]

Example for #94

[baotoq]

@dotnet-policy-service agree

[DamianEdwards]

Shouldn't this use the Aspire RabbitMQ component rather than manually grabbing the connection string?

[baotoq]

can we do that?, I try and can't figure how can we do it

[DamianEdwards]

@eerhardt thoughts? I'm looking at https://masstransit.io/documentation/configuration/transports/rabbitmq and not seeing any clear way to control the creation of the RabbitMQ client instance MassTransit uses.

[eerhardt]

I'm not sure people would use the Aspire component. Apps that use MassTransit don't code directly to the RabbitMQ IConnection, but instead to MassTransit APIs, right? They don't want the IConnection or even the ConnectionFactory in DI.

Looking through MassTransit.RabbitMqTransport, it has its own system for configuring the underlying connection (and a lot more code than I was expecting). I'm not seeing a clear way either. MassTransit doesn't look in DI at all for the ConnectionFactory or IConnection, it assumes it has to new them up itself.

The drawbacks of not using the Aspire component is that you will need to enable the Health Check yourself, and when Tracing is supported, it will need to be enabled (since the component will do that automatically).

[davidfowl]

Masstransit doesn't support this, but we should attempt to help libraries integrate with the underlying client libs as much as possible so that aspire components just work.

[DamianEdwards]

This needs a README.md too, following the same format as the other samples.