Prisma Type Generator

Prisma type generator is a package that generates the type and interface that are available in your schema.

Installation

npm install prisma-type-generator

Usage

generator types {
  provider = "prisma-type-generator"
}

// output = "path"
// global = true || false

Example

generator client {
  provider = "prisma-client-js"
}

generator types {
  provider = "prisma-type-generator"
  global = true
}

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

model User {
  id       String    @unique @default(uuid())
  name     String
  username String
  Profile  Profile[]
}

enum UserType {
  pro
  best
}

model Profile {
  id      String @unique @default(uuid())
  contact Int
  user    User   @relation(fields: [userId], references: [id])
  userId  String
}

Generates

  npx prisma generate

It will generate the following file, prisma/types/index.ts with the following code

export interface User {
  id: string;
  name: string;
  username: string;
}

export interface Profile {
  id: string;
  contact: number;
  userId: string;
}

export const UserType = { pro: "pro", best: "best" } as const;
export type UserType = (typeof UserType)[keyof typeof UserType];

Global Types

If you want to generate global types, you can use the global option.

generator types {
  provider = "prisma-type-generator"
  global = true // default is false
}

It will generate the following file, types/prisma.d.ts with the following code

// generates in types/prisma.d.ts
declare global {
  export type TUser = User;
  export type TProfile = Profile;
  export type TUserType = UserType;
}

Use the global option to generate global types.

// use the generated types in your code, with the `T` prefix

const data : TUser = {
    // Add properties here if needed
};

Todo

• Add support for custom output path
• Add support for custom type validator
• Add support for custom type formatter

Contributing

If you'd like to contribute, please follow our contribution guidelines.

Support

If you like the project, please consider supporting us by giving a ⭐️ on Github.

Bugs

If you find a bug, please file an issue on our issue tracker on GitHub

License

prisma-fns is open-source software licensed under the MIT license.