Spring Cloud Stream App that is both sink and source

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Can I create Spring Boot Application which is Spring Cloud Stream App having both the bindings Sink and Source?

2
spring-cloud-streamspring-cloud-dataflow

2 Answers

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Such an app would seat in the middle of a stream, and this is called a Processor in Spring Cloud Stream / DataFlow lingo.

See this explanation in the reference documentation.

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A processor will pass the message from inbound queue to outbound queue with some transformation based on the binding. A processor will not act as a sink or source. What is the requirement for having both source and sink in one app.