Vaughn Vernon, author of Implementing Domain-Driven Design (IDDD), presents a TypeScript reimplementation of the AgilePM example using KurrentDB as the event sourcing database, the DomoActors and DomoTactical open-source libraries, and Cloudflare serverless Workers. The post covers core DDD concepts including Bounded Contexts, Aggregates, CQRS, and Event Sourcing, walking through concrete TypeScript source code for the Product and BacklogItem aggregates. It explains how the Actor Model enables type-safe, asynchronous message handling, how events are persisted and state is reconstituted from KurrentDB streams, and how snapshots optimize reconstitution. The article also introduces KurrentDB enterprise features such as Kubernetes Operator, Auto-Scavenging, and Connectors, and previews upcoming installments covering CQRS projections and aggregate refactoring.
