rest-to-graphql

name	rest-to-graphql
description	Convert REST API routes to a GraphQL schema. Use when migrating APIs or adding a GraphQL layer.

REST to GraphQL Converter

Got a REST API and want GraphQL? Point this at your routes and get a complete schema with types, queries, and mutations. No manual translation required.

One command. Zero config. Just works.

Quick Start

npx ai-rest-to-graphql ./src/routes

What It Does

• Analyzes your REST endpoints and generates equivalent GraphQL schema
• Converts CRUD operations to queries and mutations
• Generates TypeScript types alongside the schema
• Maps REST resources to GraphQL types with proper relationships
• Includes resolver stubs that call your existing REST handlers

Usage Examples

# Convert routes directory
npx ai-rest-to-graphql ./src/routes

# Single resource
npx ai-rest-to-graphql ./src/routes/users.ts

# Include resolver implementations
npx ai-rest-to-graphql ./src/routes --with-resolvers

# Output to specific file
npx ai-rest-to-graphql ./src/routes -o ./schema.graphql

# Keep REST as datasource
npx ai-rest-to-graphql ./src/routes --wrap-rest

Best Practices

• Start with core resources - Don't convert everything at once
• Review the generated types - AI maps fields but check the relationships
• Use as a migration guide - The output shows you the GraphQL equivalent
• Consider a gateway approach - Wrap REST with GraphQL instead of replacing

When to Use This

• Adding GraphQL to an existing REST API
• Exploring what your API would look like in GraphQL
• Building a BFF layer over microservices
• Learning GraphQL by seeing your own data modeled

Part of the LXGIC Dev Toolkit

This is one of 110+ free developer tools built by LXGIC Studios. No paywalls, no sign-ups, no API keys on free tiers. Just tools that work.

Find more:

• GitHub: https://github.com/LXGIC-Studios
• Twitter: https://x.com/lxgicstudios
• Substack: https://lxgicstudios.substack.com
• Website: https://lxgic.dev

Requirements

No install needed. Just run with npx. Node.js 18+ recommended.

npx ai-rest-to-graphql --help

How It Works

The tool parses your REST route definitions to understand your resources and operations. It maps GET endpoints to queries, POST/PUT/DELETE to mutations, and infers type structures from your request/response patterns.

License

MIT. Free forever. Use it however you want.