Event-carried state transfer pattern

[javatlacati]

Event-carried state transfer (ECST) is a software design pattern that allows communication between different components or services in a distributed system by transferring state information along with events. It is often used in event-driven architectures, where events are generated by one component and consumed by another.

In ECST, the state of a system is represented by the data that is carried with an event as it is transmitted from one component to another. When a component generates an event, it includes the current state of the system in the event payload. The consuming component can then use this state information to update its own internal state and process the event. This allows different components to communicate and share state information without the need for explicit requests or responses.

ECST can be a useful pattern for building scalable and resilient distributed systems, as it allows components to operate independently and asynchronously. It can also make it easier to add new components or services to a system, as they can simply consume and process events without needing to be directly connected to other components.

Links:

• http://www.nicodewet.com/2019/03/20/name-your-event-driven-architecture-design-patterns.html
• https://www.youtube.com/watch?v=gX0DUO171jc

Acceptance criteria

• ECST pattern example implemented

[rahul-raj]

@iluwatar
I can work on this.

[stale]

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