graphql-tools

Creates executable GraphQL schemas directly from type definitions using makeExecutableSchema, promoting clear separation between schema and resolver logic as shown in the example.

Combines multiple GraphQL schemas into a single unified API, essential for microservices or gateway architectures, with documentation on handling complex merges.

Generates realistic mock data with per-type control, useful for frontend testing and development without a backend, as highlighted in the mocking features.

Allows organizing type definitions and resolvers across multiple files, improving maintainability for large projects, as documented in schema merging sections.