Amazon EventBridge

Amazon EventBridge is an implementation of the event-driven architecture pattern that AWS launched in July 2019. EventBridge is a serverless event bus service that allows you to build event-driven architectures in your applications and integrate with partners. The key advantage that EventBridge offers is the ability to remove the need for point-to-point integrations, so you can become more flexible and agile as you connect to other applications. Since it's a fully managed service, there are no servers for you to manage, and you pay only for usage, with no minimum fees or upfront commitments. The service is metered by events published, schema discovery usage, and event replay:

Figure 2.9 – Amazon EventBridge architecture

EventBridge has event buses, events, rules, and targets. The service provides an out-of-the-box event bus called "default." The event bus is the starting point to using EventBridge; it is the central...