An event-driven architecture is a software architecture pattern that supports the production, deduction, consumption, and reaction to events. This is a commonly distributed architecture that is asynchronous and is used to develop highly scalable systems.
The main purpose of event-driven architecture patterns is to intercept the events and process them asynchronously. There are two types of topologies contained by event-driven architectures.
Mediator topology contains a single event queue and a mediator that arranges for the events in the queue to be directed to their respective processors. The events are then passed through a filter or a preprocessor of events from an event channel.
The event queue can be implemented in the form of a simple message queue or an interface that passes messages in a large distributed system. The second form of implementation also requires the involvement of complex messaging protocols, such as Rabbit MQ, and Kafka...