typescript-ddd-standards

Structure a TypeScript DDD backend by applying layered architectures: separate domain, use cases, adapters, and ports to enforce explicit boundaries. This standard prescribes patterns for entities, aggregates, and services to improve maintainability and testability across teams.

The best way to implement aggregates and value objects in TypeScript is by enforcing immutability and using factory-based object creation. This approach ensures consistent domain modeling and explicit separation of concerns within your backend architecture.

Yes, you can apply these DDD coding standards to a NestJS backend project. The standard includes practical examples and best practices specifically tailored for NestJS-style architectures to help scaffold robust, extensible domain layers.

TypeScript DDD requires factory methods for object creation to enforce immutability and maintain explicit separation of concerns. This pattern reduces ambiguity during instantiation and ensures domain entities and value objects remain in a valid state.

You need ports and adapters in a TypeScript DDD architecture when defining clean boundaries between the domain layer and external dependencies. This pattern isolates use cases and domain logic from infrastructure concerns, boosting testability and maintainability.