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https://github.com/omar-dulaimi/prisma-zod-generator

Prisma 2+ generator to emit Zod schemas from your Prisma schema
https://github.com/omar-dulaimi/prisma-zod-generator

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Prisma 2+ generator to emit Zod schemas from your Prisma schema

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# Prisma Zod Generator

[![npm version](https://badge.fury.io/js/prisma-zod-generator.svg)](https://badge.fury.io/js/prisma-zod-generator)
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[![npm](https://img.shields.io/npm/l/prisma-zod-generator.svg)](LICENSE)

Automatically generate [Zod](https://github.com/colinhacks/zod) schemas from your [Prisma](https://github.com/prisma/prisma) Schema, and use them to validate your API endpoints or any other use you have. Updates every time `npx prisma generate` runs.



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## Table of Contents

- [Supported Prisma Versions](#supported-prisma-versions)
- [Installation](#installation)
- [Usage](#usage)
- [Customizations](#customizations)
- [Additional Options](#additional-options)

# Supported Prisma Versions

### Prisma 4

- 0.3.0 and higher

### Prisma 2/3

- 0.2.0 and lower

# Installation

Using npm:

```bash
npm install prisma-zod-generator
```

Using yarn:

```bash
yarn add prisma-zod-generator
```

# Usage

1- Star this repo 😉

2- Add the generator to your Prisma schema

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

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

```ts
{
"compilerOptions": {
"strict": true
}
}

```

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

```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

![Zod Schemas](https://raw.githubusercontent.com/omar-dulaimi/prisma-zod-generator/master/zodSchemas.png)

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

```ts
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

```prisma
/// @@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`

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