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Spring 5.0 Microservices - Second Edition by Rajesh R V

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Streams for reactive microservices

Spring Cloud Streams provides an abstraction over the messaging infrastructure. The underlying messaging implementation can be RabbitMQ, Redis, or Kafka. Spring Cloud Streams provides a declarative approach for sending and receiving messages.

As shown in the preceding diagram, the Cloud Streams work with the concept of a Source and a Sink. The Source represents the sender perspective of the messaging, and Sink represents the receiver perspective of the messaging.

In the given example, the Sender defines a logical queue called Source.OUTPUT to which the Sender sends messages. The Receiver defines a logical ...

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