🚀 Prisma-Cosmo

A powerful tool that automatically generates SDL-first GraphQL types and resolvers from your Prisma schema.

🌟 Features

• Generates GraphQL SDL types from Prisma models
• Creates basic CRUD resolvers automatically
• Supports both single and multiple Prisma schema files
• Generates TypeScript types for better type safety
• Creates DataLoaders for optimal query performance
• AWS AppSync compatible out of the box

📦 Installation

# Using bun (recommended)
bun add prisma-cosmo

# Using npm
npm install prisma-cosmo

# Using yarn
yarn add prisma-cosmo

🛠️ Usage

Basic Usage

1. Place your Prisma schema(s) in the prisma folder:

   • For a single schema: prisma/schema.prisma
   • For multiple schemas: prisma/schema/*.prisma

2. Run Cosmo:

bun run cosmo

3. Cosmo will generate:
   • GraphQL SDL types
   • Basic CRUD resolvers
   • TypeScript types
   • DataLoaders for performance optimization

The generated code will be in the prisma/generated directory.

Schema Organization

You can organize your Prisma schema in two ways:

1. Single Schema File:

   • Place your schema in prisma/schema.prisma

2. Multiple Schema Files:

   • Place your schemas in prisma/schema/ directory
   • Example structure:

     prisma/
     ├── schema/
     │   ├── auth.prisma
     │   ├── users.prisma
     │   └── products.prisma

     Cosmo will automatically merge these files when needed.

Ignoring Models

To exclude specific models from generation, add the /// cosmo-ignore comment above the model:

/// cosmo-ignore
model TemporaryData {
  id Int @id
  data String
}

📚 Generated Structure

prisma/
└── generated/
    ├── models/
    │   └── [model]/
    │       ├── types.ts
    │       ├── resolvers.ts
    │       └── dataLoaders.ts
    └── schema.graphql

🔧 Configuration

No additional configuration needed! Cosmo follows Prisma's schema conventions and automatically generates appropriate GraphQL types and resolvers.

🤝 Contributing

We welcome contributions! Please feel free to submit a Pull Request.

📝 License

MIT

💪 Support

If you find any bugs or have feature requests, please create an issue on our GitHub repository.

For direct support:

• Email: [email protected]
• GitHub Issues: Create an issue

🏢 About

Developed and maintained by prevalentWare