[FIXED] @EnableBinding @deprecated as of 3.1 in favor of functional programming model

Issue

I see that following annotations are depreciated for Spring Cloud Stream

@Input @Output @EnableBinding @StreamListener

Please provide examples and links to documentation as how to do it in functional way.

Solution

This github repository contains a lot of examples..
https://github.com/spring-cloud/stream-applications

The official documentation explains in details how to move from imperative to functional style in spring cloud stream applications with kafka streams but is the same without it.

https://docs.spring.io/spring-cloud-stream/docs/3.1.0/reference/html/spring-cloud-stream.html#spring_cloud_function

Please also check this post..
https://spring.io/blog/2019/10/14/spring-cloud-stream-demystified-and-simplified

https://docs.spring.io/spring-cloud-stream-binder-kafka/docs/3.1.0/reference/html/spring-cloud-stream-binder-kafka.html#_programming_model

There is an example of imperative code (https://docs.spring.io/spring-cloud-stream-binder-kafka/docs/3.1.0/reference/html/spring-cloud-stream-binder-kafka.html#_imperative_programming_model) and how it should be developed with functional style.

Answered By - 50qbits