When to use REST, when to use GraphQL, and how to integrate each with React and Next.js.
REST and GraphQL are both valid. Here’s how they differ and how to choose for your frontend.
REST and GraphQL API comparison
REST
Model — Resources and URLs; HTTP methods (GET, POST, PUT, DELETE). Stateless; cacheable by URL.
Pros — Simple, well understood, great caching (CDN, browser). Easy to debug with curl or browser.
Cons — Over-fetching or under-fetching; multiple round-trips for related data; versioning and consistency vary by team.
GraphQL
Model — Single endpoint; client sends a document describing the data it needs. One request can get many resources.
Pros — Flexible queries, strong typing, subscriptions for real-time. Frontend controls the shape.
Cons — Caching is harder (single URL); complexity on the server; need for query depth/cost limits.
Use case fit (conceptual):
Best fit by use case (relative)
Recommendation
Use REST when your API is simple, cacheability matters, or the team is small. Use GraphQL when you have many clients with different data needs, complex relations, or real-time requirements. You can also offer both (REST for some resources, GraphQL for a unified query layer).
REST vs GraphQL in 100 seconds:
Takeaway
Match the API style to the product. REST and GraphQL can coexist; choose based on team skills, tooling, and how the frontend consumes data.
