What is GraphQL to Apollo Resolver Generator?
This tool converts GraphQL Schema Definition Language (SDL) into Apollo Server resolver code. It generates TypeScript interfaces for your types, resolver functions for Query and Mutation operations, and field resolvers for nested relationships.
How to Use
- Select output style: TypeScript (recommended) or JavaScript
- Paste your GraphQL schema SDL into the input area
- Click "Generate Resolvers" to create the resolver code
- Copy the output and implement the TODO resolver functions
Why Use This Tool?
Tips & Best Practices
- Use TypeScript output for better type safety and IDE support
- Field resolvers are generated for non-scalar fields
- Arguments are typed based on your GraphQL schema
- Customize the Context interface for your authentication needs
- Implement each TODO resolver with your data source logic
Frequently Asked Questions
What is Apollo Server?
Apollo Server is a GraphQL server for Node.js. It provides a spec-compliant GraphQL server that can be used with any GraphQL client, including Apollo Client.
How are GraphQL types mapped to TypeScript?
GraphQL ID and String map to string, Int and Float map to number, Boolean maps to boolean. Custom types become interface references. Required fields (!) are non-nullable, arrays use TypeScript array syntax.
What are field resolvers?
Field resolvers resolve nested fields that are not scalar types. For example, if a User type has a posts field of type [Post], a field resolver is generated to fetch posts for a given user.
Is my schema sent to a server?
No, all processing happens entirely in your browser. Your GraphQL schema never leaves your device.