event-driven-architect

Event-driven architecture decouples system components by leveraging event sourcing, CQRS, and pub/sub patterns, enabling independent services to communicate asynchronously via an event bus for high scalability and resilience.

Implement CQRS and event sourcing by separating read and write operations while storing system state as a sequence of immutable domain events, allowing optimized performance and reliable asynchronous communication across microservices.

Pub/sub communication with domain events facilitates indirect coupling by publishing business-significant events to an event bus, where independent event handlers subscribe to trigger subsequent actions like inventory updates or payment processing.

You need event-driven architecture when building highly decoupled, scalable, and resilient systems that require asynchronous state management, such as microservices where an order event independently triggers multiple downstream processes.

Define event schemas to structure immutable domain events and manage event handlers by subscribing them to an event bus, ensuring asynchronous communication and decoupled state management across independent system services.