lombok-typescriptLombok + GoF patterns for TypeScript

What it is ​

lombok-typescript brings Project Lombok-style annotations and Gang-of-Four design patterns to TypeScript. You decorate classes and methods; the library applies runtime behavior or generates companion code so you write less boilerplate.

Phase 1 (v0.1) ships eight decorators: @NonNull, @ToString, @Builder, @Data, @Singleton, @Prototype, @Factory, and @Memoize.

Who it's for ​

• TypeScript application developers tired of hand-written getters, builders, and toString
• NestJS teams who want pattern decorators that work alongside @Injectable()
• Developers coming from Java / Spring who miss @Data, @Builder, and similar ergonomics
• Anyone learning GoF patterns through a single decorator plus a concrete example

What it isn't ​

lombok-typescript is not a dependency-injection container (use NestJS, Inversify, or tsyringe), an ORM, or a state-management library. It targets TypeScript 5+ and Node 22+ and does not polyfill older runtimes.

Status ​

Version 0.1.0 — code-complete on main, not published to npm yet. See the changelog on GitHub.

Quick links ​

• Introduction — problem, solution, and hybrid model
• Getting started — install, configure, generate
• Architecture — runtime vs codegen vs hybrid
• Decorator overview — all v0.1 decorators at a glance