NestJS integration

NestJS support is built into the core package and exposed through the lombok-typescript/nestjs entry point. @nestjs/common and @nestjs/core are optional peer dependencies — nothing Nest-related is pulled in unless you import this subpath, so plain-TS users never see NestJS in their dependency tree.

Install

npm install lombok-typescript @nestjs/common @nestjs/core reflect-metadata

Bootstrap

import { Module } from '@nestjs/common';
import { LombokModule } from 'lombok-typescript/nestjs';

@Module({
  imports: [
    LombokModule.forRoot({
      logAdapter: 'nest',
      defaultProviderScope: 'DEFAULT',
    }),
  ],
})
export class AppModule {}

Decorators

Export	Purpose
LombokModule.forRoot()	Global config token (LOMBOK_NEST_CONFIG)
@LogNest	@Log using Nest Logger
@MemoizeNest	@Memoize with REQUEST-scope guidance
@RetryNest	@Retry with interceptor composition notes
NEST_SCOPE_GUIDANCE	Scope advisory table

Runnable example: examples/nestjs.

Provider scope

Decorator	Recommended @Injectable scope	Notes
@Singleton	DEFAULT	One instance per Nest container
@Memoize / @MemoizeNest	REQUEST for per-request cache	Singleton + memoize can leak request data
@Flyweight	DEFAULT	Pool is process-wide
@Retry / @RetryNest	DEFAULT	Method-level; use interceptors for HTTP retry

Interceptors

@RetryNest and @MemoizeNest run inside the method body. Nest HTTP interceptors wrap the handler pipeline — use both when you need transport-level and business-level policies.

See also: From Java Lombok, From class-validator.