Prisma DMMF Extended

An extension library for Prisma's DMMF (Data Model Meta Format) that provides bidirectional conversion between Prisma schema and DMMF.

Features

• Convert Prisma schema to DMMF (schemaToDmmf)
• Convert DMMF back to Prisma schema (dmmfToSchema)
• Handle ZenStack syntax and extensions
• Error handling utilities

Installation

npm install @mohammed-bahumaish/prisma-dmmf-extended
# or
yarn add @mohammed-bahumaish/prisma-dmmf-extended
# or
pnpm add @mohammed-bahumaish/prisma-dmmf-extended

Usage

import { schemaToDmmf, dmmfToSchema } from '@mohammed-bahumaish/prisma-dmmf-extended';

// Convert Prisma schema to DMMF
const prismaSchema = `
  datasource db {
    provider = "postgresql"
    url      = env("DATABASE_URL")
  }
  
  model User {
    id    Int     @id @default(autoincrement())
    email String  @unique
    name  String?
  }
`;

async function example() {
  // Schema to DMMF
  const { datamodel, config } = await schemaToDmmf(prismaSchema);
  console.log('DMMF:', datamodel);
  
  // DMMF back to schema
  const formattedSchema = await dmmfToSchema({
    dmmf: datamodel,
    config: config
  });
  console.log('Schema:', formattedSchema);
}

example();

Project Structure

• /src - Source code
  • index.ts - Main exports
  • dmmfToSchema.ts - Converts DMMF to Prisma schema
  • schemaToDmmf.ts - Converts Prisma schema to DMMF
  • processLine.ts - Processes schema lines during conversion
  • handleError.ts - Error handling utilities
  • /util - Utility functions
    • parser.ts - Schema parsing utilities

Development

# Install dependencies
npm install

# Build the project
npm run build

# Run tests
npm test

# Development with watch mode
npm run dev

License

MIT # prisma-dmmf-extended