tsgonest documentation

Native-speed TypeScript compilation with tsgo, generated runtime validators and serializers, and static OpenAPI 3.2 analysis for NestJS.

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Get up and running fast

Install tsgonest, configure your project, and build your first NestJS app with native-speed tsgo in minutes.

Full CLI reference

Every flag for `tsgonest build` and `tsgonest dev`, the operational pipeline, exit codes, and usage examples.

Configuration reference

Complete `tsgonest.config.json` schema with controllers, transforms, OpenAPI, NestJS versioning, and more.

Validation & constraints

JSDoc tags, branded types, string formats, transforms, coercion, custom validators, discriminated unions, and Standard Schema.

Serialization & runtime

Fast generated serializers (2-5x faster than JSON.stringify), manifest-driven discovery, ValidationPipe, and FastInterceptor.

OpenAPI 3.2 generation

Static analysis of NestJS controllers produces a fully-compliant OpenAPI 3.2 document with zero runtime decorators.

tsgonest vs NestJS CLI

Build speed, validation, serialization, and OpenAPI compared to the standard NestJS ecosystem.

tsgonest vs Nestia + Typia

Architecture differences, DX comparison, and migration path from the Nestia/Typia ecosystem.

tsgonest vs tsgo

What tsgonest adds on top of Microsoft's typescript-go compiler: companions, manifest, OpenAPI, and dev mode.

tsgonest wraps typescript-go (tsgo) and runs a full static analysis pass before emitting companion files.