Instruction: Describe the process of integrating GraphQL with a Node.js application, including schema design and data fetching.
Context: The candidate must explain how to set up a GraphQL endpoint in a Node.js application, including schema definition, resolvers, and handling queries and mutations.
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Firstly, to set up a GraphQL endpoint in a Node.js application, we start by installing essential packages: graphql and express-graphql. express-graphql is a middleware that allows Express applications to interact seamlessly with GraphQL.
npm install graphql express-graphql express...