Prisma Valibot Generator

Prisma → Valibot in one generate. Ship validated, typed data everywhere.

_{Prisma → Valibot generator: zero‑boilerplate validation for your models.
🎯 Type-safe · 🧹 Clean schemas · 🔧 Configurable · 📏 Tree-shakeable}

Highlights

• 🚀 Generate Valibot schemas from your Prisma models automatically
• 📦 Per-model exports:
  • {Model}Schema (all fields required)
  • Create{Model}Schema (required scalars only)
  • Update{Model}Schema (all fields optional)
• 🎯 Advanced enum support: Dedicated enums.ts with v.picklist() + value exports
• 🧹 Clean schemas: Relations automatically excluded for focused validation
• 🔧 Full type coverage: String/Int/Float/Boolean/DateTime/Json/Decimal/BigInt/Bytes/Arrays
• ⚙️ Configurable: enumValue option supports @map for custom enum values
• 🛡️ Type-safe: Runtime validation with comprehensive error handling
• 📏 Lightweight: Tree-shakeable exports, minimal runtime overhead

Prerequisites

• Node.js 18+
• Prisma 6.12+
• valibot

Quick start

1. Star this repo 🌟

2. Install

npm i -D prisma-valibot-generator
# pnpm: pnpm add -D prisma-valibot-generator
# yarn: yarn add -D prisma-valibot-generator
# bun:  bun add -d prisma-valibot-generator

3. Add a generator block to your schema.prisma

generator valibot {
  provider  = "prisma-valibot-generator"
  output    = "./src/generated/valibot" // optional
  enumValue = "name" // optional: "name" (default) | "dbName" (for @map support)
}

4. Generate

npx prisma generate

5. Import and use

import * as v from 'valibot';
import { 
  UserSchema, 
  CreateUserSchema, 
  UpdateUserSchema, 
  RoleEnum,
  RoleValues 
} from './src/generated/valibot';

// Validate complete model data
const user = v.parse(UserSchema, {
  id: 1,
  email: '[email protected]',
  name: 'John Doe',
  role: 'ADMIN'
});

// Validate creation data (only required fields)
const newUser = v.parse(CreateUserSchema, { 
  email: '[email protected]',
  password: 'secret123'
});

// Validate updates (all fields optional)
const userUpdate = v.parse(UpdateUserSchema, { 
  name: 'Jane Smith' 
});

// Validate enums
const role = v.parse(RoleEnum, 'USER');

// Access enum values for UI components
console.log(RoleValues); // ['USER', 'ADMIN']

Features

🎯 Enum Support

enum Role {
  USER
  ADMIN     @map("administrator")
  MODERATOR @map("mod")
}

generator valibot {
  provider  = "prisma-valibot-generator"
  enumValue = "dbName" // Use @map values
}

import { RoleEnum, RoleValues } from './generated/valibot';

// Generated enum values respect @map
console.log(RoleValues); // ['USER', 'administrator', 'mod']

// Validation works with mapped values
v.parse(RoleEnum, 'administrator'); // ✅ Valid
v.parse(RoleEnum, 'ADMIN');         // ❌ Invalid

🧹 Relation Handling

Relations are automatically excluded from generated schemas for clean validation:

model User {
  id    Int    @id
  email String
  posts Post[] // Excluded from schemas
}

model Post {
  id       Int  @id
  title    String
  author   User @relation(fields: [authorId], references: [id]) // Excluded
  authorId Int  // Included - it's a scalar field
}

🔧 Array Support

Arrays are fully supported with proper validation:

model User {
  id       Int      @id
  tags     String[]
  scores   Int[]
}

const user = v.parse(UserSchema, {
  id: 1,
  tags: ['developer', 'typescript'],
  scores: [95, 87, 92]
});

⚙️ Configuration Options

Option	Values	Default	Description
output	string	"./generated"	Output directory for generated files
enumValue	"name" | "dbName"	"name"	Whether to use enum names or @map values

Error Handling

The generator provides clear, actionable error messages:

# Invalid enum configuration
❌ Invalid enumValue config: 'invalid'. Must be 'name' or 'dbName'.

# Missing enum definition  
❌ Enum 'Status' not found in schema. Available enums: Role, Priority

# Empty enum
❌ Enum 'Status' has no values. Enums must have at least one value.

Sponsor ❤️

If this saves you time or prevents bugs, please consider sponsoring to support maintenance and new features.

→ https://github.com/sponsors/omar-dulaimi

Contributing

PRs welcome. Keep diffs focused and discuss larger changes in an issue first. See the test suites for expected behavior and coverage.

License

MIT © Omar Dulaimi