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GraphQL API

Part of the Backend Developer Roadmap

In short

A GraphQL API for a real domain (e.g. a bookstore or blog) — practice for schema design, resolvers, and handling nested/related data efficiently.

How to learn this

  1. 1Design a schema covering at least two related types with nested queries.
  2. 2Implement a mutation alongside your queries, e.g. create a review.
  3. 3Add DataLoader to batch and cache resolver calls, avoiding N+1 queries.

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