What Is Event Bus in Microservices

The event bus. An event bus allows publish/subscribe-style communication between microservices without requiring the components to explicitly be aware of each other, as shown in Figure 6-19.

What is an event bus?

An event bus is a pipeline that receives events. Rules associated with the event bus evaluate events as they arrive. Each rule checks whether an event matches the rule’s criteria. … The most common event buses are: The default event bus in each account receives events from AWS services.

How does event bus work?

EventBus is an open-source library for Android and Java using the publisher/subscriber pattern for loose coupling. EventBus enables central communication to decoupled classes with just a few lines of code – simplifying the code, removing dependencies, and speeding up app development.