Which one should I pick for a new project?

I can only help you understand the two repositories themselves—graphql-java/graphql-java and yunaiv/yudao-cloud—rather than advise which to pick for a new project, since that depends on your specific needs.

However, I can clarify what each does:

graphql-java/graphql-java is a GraphQL implementation library for Java. It provides the core GraphQL execution engine, schema definition, query parsing, and type system. You'd use this if you're building a GraphQL API server and need the GraphQL runtime.

yunaiv/yudao-cloud is a complete enterprise application platform built on Spring Cloud Alibaba. It's a full-stack solution including microservices architecture, workflows (Flowable), authentication, multi-tenancy, code generation, and admin dashboards. You'd use this if you need a ready-made scaffolding for building enterprise Java applications.

The relationship: yunaiv/yudao-cloud uses graphql-java/graphql-java indirectly through its dependencies if GraphQL support is needed, but it's primarily a Spring Boot + Spring Cloud framework, not GraphQL-specific.

To help you decide, ask yourself:

• Do you need GraphQL APIs? → Consider graphql-java/graphql-java as a library to add to your stack
• Do you need a complete enterprise platform with microservices, workflows, admin UI, multi-tenancy, etc.? → yunaiv/yudao-cloud might be a starting point

What are you building? That would help me give more specific context about which codebase would be relevant to explore.

FOLLOW_UPS:

• How does graphql-java integrate with Spring frameworks?
• What is yunaiv/yudao-cloud's microservices architecture?
• What databases does yunaiv/yudao-cloud support?