ApplicationEvent

[EN] `@EventListener` in Spring Boot: How to build loosely coupled components
[EN] `@EventListener` in …

Hello everyone,

In modern, microservices-oriented architectures, we want to keep components as independent as possible. When service A performs an action (e.g. registers a user), service B should respond to it (e.g. send a welcome email) without A needing to know from B directly.