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GraphQL
Core details
Title
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Description
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GraphQL is a query language for APIs allowing clients to request exact data needed, reducing over/under-fetching with a schema-driven approach. It supports subscriptions for real-time updates.
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Frameworks
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Usage & Trade-offs
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When to use it
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Adopt GraphQL when: - Clients need flexible data fetching. - Reducing multiple REST endpoints. - Building mobile apps with varying screens. - Enabling real-time features.
Pros
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- Efficient payloads; no over-fetching. - Strong typing with schema. - Single endpoint for all data. - Tools like Apollo for caching. - Versionless evolution.
Cons
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- N+1 problem without dataloaders. - Complex caching vs REST. - Steeper learning for resolvers. - Query complexity limits needed. - Less tooling than REST.
Notes
Note: Use dataloaders for batching. Implement depth limits. Start with schema-first design.
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