Prisma Zod Generator

Automatically generate Zod schemas from your Prisma Schema, and use them to validate your API endpoints or any other use you have. Updates every time npx prisma generate runs.

Table of Contents

• Supported Prisma Versions
• Installation
• Usage
• Customizations
• Additional Options

Supported Prisma Versions

Prisma 4

• 0.3.0 and higher

Prisma 2/3

• 0.2.0 and lower

Installation

Using npm:

 npm install prisma-zod-generator

Using yarn:

 yarn add prisma-zod-generator

Usage

1- Star this repo 😉

2- Add the generator to your Prisma schema

generator zod {
  provider = "prisma-zod-generator"
}

3- Enable strict mode in tsconfig as it is required by Zod, and considered a Typescript best practice

{
  "compilerOptions": {
    "strict": true
  }
}

4- Running npx prisma generate for the following schema.prisma

model User {
  id    Int     @id @default(autoincrement())
  email String  @unique
  name  String?
  posts Post[]
}

model Post {
  id        Int      @id @default(autoincrement())
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  title     String
  content   String?
  published Boolean  @default(false)
  viewCount Int      @default(0)
  author    User?    @relation(fields: [authorId], references: [id])
  authorId  Int?
  likes     BigInt
}

will generate the following files

5- Use generated schemas somewhere in your API logic, like middleware or decorator

import { PostCreateOneSchema } from './prisma/generated/schemas/createOnePost.schema';

app.post('/blog', async (req, res, next) => {
  const { body } = req;
  await PostCreateOneSchema.parse(body);
});

Customizations

Skipping entire models

/// @@Gen.model(hide: true)
model User {
  id    Int     @id @default(autoincrement())
  email String  @unique
  name  String?
}

Additional Options

Option	Description	Type	Default
output	Output directory for the generated zod schemas	string	./generated
isGenerateSelect	Enables the generation of Select related schemas and the select property	boolean	false
isGenerateInclude	Enables the generation of Include related schemas and the include property	boolean	false

Use additional options in the schema.prisma

generator zod {
  provider          = "prisma-zod-generator"
  output            = "./generated-zod-schemas"
  isGenerateSelect  = true
  isGenerateInclude = true
}