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GraphQL vs REST

REST has been the dominant API architecture for over a decade, but GraphQL — created by Facebook in 2015 — offers a fundamentally different approach to data fetching. REST uses fixed endpoints that return predetermined data shapes, while GraphQL provides a single endpoint with a query language that lets clients request exactly the data they need. The choice between them affects your API design, frontend development speed, and system complexity.

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Quick Overview

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GraphQL

GraphQL is a query language and runtime for APIs that gives clients the power to request exactly the data they need. Instead of multiple REST endpoints, GraphQL exposes a single endpoint with a strongly-typed schema. Clients write queries that mirror the shape of the response they want, eliminating over-fetching and under-fetching problems common with REST.

Key Strengths

  • Clients request exactly what they need — no over-fetching or under-fetching
  • Single endpoint simplifies API surface and reduces network requests
  • Strongly typed schema serves as self-documenting API contract
  • Real-time subscriptions built into the specification
  • Excellent developer tools (GraphiQL, Apollo DevTools, Relay)
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REST

REST (Representational State Transfer) is an architectural style for designing networked applications. REST APIs use standard HTTP methods (GET, POST, PUT, DELETE) on resource-oriented URLs. Its simplicity, statelessness, and alignment with HTTP semantics have made it the default choice for web APIs for over 15 years.

Key Strengths

  • Simple, well-understood architecture that every developer knows
  • Native HTTP caching with ETags, Cache-Control, and CDN support
  • Stateless design that scales horizontally with ease
  • Universal tooling support — every language and framework supports REST
  • Standard HTTP status codes provide clear error semantics

Detailed Comparison

Side-by-side analysis of key technical categories to help you make an informed decision.

CategoryGraphQLREST
Data FetchingClients specify exactly which fields they need in a query. One request can fetch nested, related data from multiple resources. Eliminates over-fetching and under-fetching.Each endpoint returns a fixed data shape. Fetching related data often requires multiple requests or custom include parameters. Over-fetching is common.
CachingHTTP caching is complex since everything goes through a single endpoint with POST requests. Requires application-level caching (Apollo Client, urql) or persisted queries.Leverages HTTP caching natively. GET requests with proper headers enable CDN caching, browser caching, and reverse proxy caching out of the box.
Learning CurveSteeper learning curve: schema design, resolvers, query optimization (N+1 problem), and client-side caching concepts. Requires investment in tooling.Minimal learning curve. If you know HTTP, you know REST. URL patterns, HTTP methods, and status codes are intuitive and universally understood.
ToolingRich ecosystem: Apollo, Relay, Hasura, graphql-codegen, Pothos. Self-documenting with schema introspection. Playground environments for testing.Universal support in every language and framework. OpenAPI/Swagger for documentation. Postman, curl, and any HTTP client works natively.
PerformanceCan be more efficient per request (one query vs multiple REST calls). But complex queries can be expensive server-side without proper optimization (DataLoader, query complexity limits).Individual requests are simple and fast. Multiple requests for related data can add latency, but HTTP/2 multiplexing and parallel requests mitigate this.
VersioningNo versioning needed — clients request only the fields they use. Deprecated fields can coexist with new ones. Schema evolution is smooth.Versioning is a known challenge (URL versioning, header versioning). Breaking changes require careful migration strategies and version maintenance.

When to Use Each Technology

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Choose GraphQL When

  • Complex UIs that aggregate data from multiple resources in one view
  • Mobile applications where bandwidth optimization matters
  • Teams where frontend and backend develop at different speeds
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Choose REST When

  • Public APIs where simplicity and cacheability are priorities
  • CRUD-heavy applications with straightforward data access patterns
  • Teams that want maximum simplicity and minimal abstraction

Our Verdict

REST is the right choice for most APIs — it's simpler, more cacheable, and universally understood. GraphQL shines when your frontend needs flexible, nested data access or when multiple clients (web, mobile, partners) consume the same API with different data requirements. Don't adopt GraphQL just because it's trendy — adopt it when you have a genuine data-fetching complexity problem. For WeBridge clients, we typically recommend REST for public APIs and CRUD services, and GraphQL for complex frontend-driven applications.

Frequently Asked Questions

Should I use GraphQL for my new project?

If your application has simple CRUD operations and straightforward data access, REST is simpler and more appropriate. Consider GraphQL if you have complex, nested data requirements, multiple client types (web, mobile, IoT) needing different data shapes, or a rapidly evolving frontend that frequently needs new data combinations without backend changes.

Can I use GraphQL and REST together?

Yes, and many companies do. A common pattern is using REST for simple microservices and GraphQL as a gateway layer that aggregates data from multiple REST services. This gives you REST's simplicity for individual services and GraphQL's flexible querying for the frontend.

Is GraphQL faster than REST?

Not inherently. GraphQL can reduce the number of network round-trips by fetching related data in one query, which can feel faster. But individual GraphQL queries can be more expensive server-side than simple REST endpoints. Performance depends more on your data access patterns and implementation than on the protocol choice.

Does GraphQL replace REST?

No. REST remains the dominant and often best choice for most APIs. GraphQL solves specific problems around data-fetching flexibility that REST handles less elegantly. Think of them as complementary tools, not replacements. In 2026, most new APIs are still REST, with GraphQL used strategically where it adds clear value.

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