@dudousxd/nestjs-codegen-valibot

Valibot validation adapter for @dudousxd/nestjs-codegen.

nestjs-codegen translates your @Body()/@Query() DTOs and defineContract schemas into one neutral schema IR (SchemaNode), then renders that IR with a validation adapter. This package is the valibot adapter: it renders the IR into valibot source in the generated forms.ts.

Reach for valibot when bundle size matters — it's a tiny, tree-shakeable validator, so only the actions your forms actually use end up in the client bundle.

Install

pnpm add -D @dudousxd/nestjs-codegen-valibot

valibot itself is the runtime dependency your generated forms.ts imports from (import * as v from 'valibot'), so install it in your app too:

pnpm add valibot

Setup

zod is bundled and used by default. To emit valibot schemas instead, pass valibotAdapter to the codegen config:

import { defineConfig } from '@dudousxd/nestjs-codegen';
import { valibotAdapter } from '@dudousxd/nestjs-codegen-valibot';

export default defineConfig({
  validation: valibotAdapter,
});

Given a DTO like:

class CreateUserDto {
  @IsEmail() email!: string;
  @MinLength(8) password!: string;
}

the adapter renders forms.ts in valibot's idiom:

import * as v from 'valibot';

export const CreateBodySchema = v.object({
  email: v.pipe(v.string(), v.email()),
  password: v.pipe(v.string(), v.minLength(8)),
});
export type CreateBody = v.InferOutput<typeof CreateBodySchema>;

How it fits

The codegen builds one neutral schema IR from your DTOs and contracts. A validation adapter renders that IR into a concrete library's source:

• zod — bundled, the default (validation: 'zod')
• valibot — this package (validation: valibotAdapter)
• arktype — @dudousxd/nestjs-codegen-arktype (validation: arktypeAdapter)

Pick exactly one — it decides which library your generated forms.ts imports and validates with.

Documentation

• Pluggable Validation docs
• Repository

License

MIT