On the other hand, the functional programming model is the new approach. Functions are the basic unit in the paradigm of functional programming. Each function is an independent module that solves a specific problem while the composition of them can solve complicated problems. Java Stream is a typical example of functional programming.

Sample Message Driven application overview

To extend this we will come up with a simple example ie., A famous FizzBuzz question asked in interviews.

Different ways to implement, the message-driven applications using either any message broker like Kafka, RabbitMQ. Spring Cloud Stream simplifies the development of message-driven systems, making the development so much easier and contributing to effortless integration with message brokers. Moreover, the framework automatically provisions topic exchanges, message queues, and binding based on configuration, achieving code as infrastructure which greatly reduces the dependency on environment setup.