Event-Driven Architecture

Practical Application of an EDA

Photo by Mathew Schwartz on Unsplash

Intro

Event-driven architecture (EDA) is an architectural pattern that structures software components to respond to, produce, and consume events. In this paradigm, events represent significant occurrences or state changes within a system, and the architecture is designed to enable communication and reaction to these events in a decoupled and scalable manner. Here’s a brief introduction to key concepts in event-driven architecture:

Events

• In the context of EDA, events are messages or signals that denote a change in state or the occurrence of a significant action within a system. Events can be triggered by user actions, changes in data, system failures, or other relevant activities.

Event Producers

• Entities are responsible for generating and emitting events. These can be applications, services, or components that detect changes in state and publish corresponding events.

Event Consumers

• Components or services that are interested in specific types of events. Event consumers subscribe to events they want to handle, and when an event occurs, they receive and process it. Importantly, producers and consumers are decoupled, meaning they don’t need direct knowledge of each…