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Phase 9 · API Design

Topics

GraphQL Basics

Part of the Backend Developer Roadmap.

Summary

A query language for APIs that lets clients request exactly the fields they need in a single request — an alternative to REST that solves over-fetching and under-fetching.

How to Learn This

  • 1Write a basic GraphQL schema with a query and a resolver.
  • 2Compare fetching related data in REST (multiple requests) vs GraphQL (one query).
  • 3Learn GraphQL's single-endpoint model versus REST's many-endpoints model.

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HATEOAS

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GraphQL Schema & Resolvers

More topics in API Design

REST API Best PracticesAPI VersioningPaginationFiltering & SortingHATEOASGraphQL Schema & ResolversgRPC BasicsAPI Documentation (Swagger/OpenAPI)PostmanWebhooksRate Limiting Strategies
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