Install apollo-server with Node.js and create mock data for products and categories. Example:
npm install apollo-server graphql
Fetch data in getServerSideProps using ApolloClient in Next.js. This approach fetches data from the server on the first page load, aligning with the standard for Building SEO‑Friendly Product Pages with Next.js.
GraphQL’s Fragment feature enables reusable queries and a coherent data library. Use tools like graphql-request-perf to benchmark performance.