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Stop relying on fragile if/else blocks for domain logic. Learn how to combine Scala's sealed traits and case classes to create type-safe, exhaustive data models.
Learn how to use Scala 3 opaque types to eliminate primitive obsession and prevent domain logic errors with zero runtime overhead.
Learn how Scala 3 opaque types give you compile‑time safety without runtime overhead, how they differ from value classes and case classes, see a worked example, and understand key trade‑offs.
Treat JHipster's JDL as the canonical domain contract. This blog shows a concrete order-domain example, explains how protected regions preserve custom logic during re-imports, and outlines a safe adoption path for existing projects.
Learn how to use PureScript Newtypes and Row Polymorphism to eliminate primitive obsession and enforce strict data boundaries using the 'Parse, don't validate' pattern.
scala
jhipster
purescript