abp/docs/en/Event-Bus.md

Event Bus

An event bus is a mediator that transfers a message from a sender to a receiver. In this way, it provides a loosely coupled communication way between objects, services and applications.

Event Bus Types

ABP Framework provides two type of event buses;

• Local Event Bus is suitable for in-process messaging.
• Distributed Event Bus is suitable for inter-process messaging, like microservices publishing and subscribing to distributed events.