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Two Ways to Build APIs
REST and GraphQL both let clients fetch data differently.
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AiTechWorlds
AiTechWorlds
REST and GraphQL are two ways to build APIs. This visual guide compares how each fetches data, explains over-fetching and under-fetching, schemas and queries, and helps you choose the right approach for your project.
REST and GraphQL both let clients fetch data differently.
REST exposes fixed endpoints that return set data shapes.
GraphQL lets clients request exactly the fields they need.
Each resource has its own URL like /users/1.
One endpoint handles all queries and mutations.
REST may return more data than you need.
REST may need multiple calls for related data.
Ask for nested, related data in one request.
GraphQL is strongly typed via a schema.
GraphQL changes data with mutations.
REST caches easily; GraphQL needs more effort.
GraphQL evolves the schema; REST often versions URLs.
GraphQL has rich introspection and explorers.
Both can be fast with good design.
GraphQL adds power but more setup.
Simple, cacheable, resource-based APIs.
Complex, nested data and many client needs.
Yes — many systems mix REST and GraphQL.
GraphQL needs query depth and cost limits.
Match the API style to your data and clients.
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