Event-driven architecture (EDA) is an architectural pattern used in web development to design and implement systems that are driven by events, messages, or signals, and that can respond to changes, updates, or triggers in real-time. Event-driven architecture involves decoupling the components of a system, such as modules, services, or applications, and connecting them through a message bus, a publish-subscribe model, or a reactive programming paradigm, so that they can exchange events and communicate asynchronously and loosely. Event-driven architecture can enable various use cases, such as real-time analytics, fraud detection, IoT, or microservices, and can improve the scalability, performance, and resilience of web systems.
