What is Event Bus?

An event bus is a software architectural pattern that facilitates communication between different components or services within a system without requiring them to have direct knowledge of each other. It operates as a central hub where components publish events, and other components subscribe to specific event types. When an event is published, the event bus routes it to all subscribed components, enabling asynchronous and loosely coupled interactions. Event buses are commonly used in microservices architectures, distributed systems, and applications with complex event-driven logic to improve scalability, maintainability, and flexibility.