Confluent-kafka-dotnet: Support request/response pattern

[kvandake]

Description

Spring Kafka added support for the Request Reply pattern out-of-the box. Does dotnet kafka support the request-reply pattern?

How to reproduce

https://dzone.com/articles/synchronous-kafka-using-spring-request-reply-1

Checklist

Please provide the following information:

• [ ] A complete (i.e. we can run it), minimal program demonstrating the problem. No need to supply a project file.
• [ ] Confluent.Kafka nuget version.
• [ ] Apache Kafka version.
• [ ] Client configuration.
• [ ] Operating system.
• [ ] Provide logs (with "debug" : "..." as necessary in configuration).
• [ ] Provide broker log excerpts.
• [ ] Critical issue.

[mhowlett]

We won't add this to Confluent.Kafka. In the future, we may make a higher level library that provides this out of the box, but we don't have near term plans to do so.

[arashkarami]

Dear @mhowlett, We need really to the Request-Reply pattern, because without this, we can not handle sync REST API by correct and clear way!

Please give high priority to this 🙏

[mrwersa]

The Spring ReplyingTemplate is not partition aware (it only works with a single partition). So it cannot be really used out of the box in production code. It'd be great if we could have the request-reply pattern natively supported by Kafka and Confluent. 🙏