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High-level architecture

In the preceding example, we have three microservices that need to be connected in a data flow. The following figure represents the high-level architecture of implementing the solution with Spring Cloud Data Flow:

In the preceding figure, source, sink, and processor are Spring Boot microservices created using Spring Cloud Stream:

The source microservice defines an output channel
The processor microservice defines both input and output channels
The sink microservice defines an input channel

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