Event-driven architecture (EDA)
Event-driven architecture (EDA) is another pattern commonly used when implementing microservices. When the event-driven pattern is used, creating, messaging, processing, and storing events are critical functions of the service. Contrast this with the layered pattern we just looked at, which is more of a request/response model and where the user interface takes a more prominent role in the service.
Another difference is that layered architecture applications are normally synchronous whereas an EDA relies on the asynchronous nature of queues and events.
More and more applications are being designed using EDA from the ground up. Applications using EDA can be developed using a variety of development stacks and languages. EDA is a programming philosophy, not a technology and language. EDA facilitates code decoupling, making applications more robust and flexible. At the center of EDA is the concept of events. Let’s spend some time understanding...
