Messaging and integration

I have already mentioned messaging brokers and their usage for communication between your application and Zipkin server. Generally, Spring Cloud supports two types of communications via synchronous/asynchronous HTTP and with messaging brokers. The first project from this area is Spring Cloud Bus. It allows you to send broadcast events to applications informing them about state changes such as configuration property updates or other management commands. Actually, we might want to use starters for AMQP with a RabbitMQ broker or for Apache Kafka. As usual, we only need to include spring-cloud-starter-bus-amqp or spring-cloud-starter-bus-kafka to the dependency management and all other necessary operations are performed through auto-configuration. 

Spring Cloud Bus is a rather small project allowing you to use distributed messaging features for...