Practical GraphQL - Become a GraphQL Ninja - Separating Models, Schemas and Resolvers

The video tutorial covers the process of refactoring a complex JavaScript application by organizing code into separate folders for models, resolvers, and type definitions. It explains the need for schema stitching in GraphQL to avoid duplicate query and mutation types. The tutorial also addresses troubleshooting data access issues and introduces the concept of context to ensure data is accessible throughout the application.

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