Every few years a technology gets framed as the obvious successor to an older one, and API design has had this argument for a decade. The honest answer is that REST and GraphQL solve different problems, and the right choice depends on what your product actually needs — not on which one is trending.
What REST is genuinely good at
REST maps naturally onto resources: a customer, an order, a product. It's simple to cache with standard HTTP tooling, simple to debug with nothing more than a browser or curl, and simple for a new developer to understand without learning a query language. For most CRUD-shaped applications — admin panels, typical web and mobile backends — REST is the right default, not the outdated one.
What GraphQL actually solves
GraphQL earns its complexity when a client needs to combine data from many different resources in one screen, and different clients — web, iOS, Android — need different shapes of the same data. Instead of five REST calls stitched together on the client, one GraphQL query asks for exactly the fields needed. This genuinely matters for large, multi-team products with many client applications hitting the same backend.
Where GraphQL adds cost, not value
A single web app talking to its own backend rarely needs this. GraphQL brings real overhead: a schema to design and maintain, resolver logic that can hide N+1 query problems until they show up in production, and caching that no longer works out of the box the way HTTP caching does for REST. For a small team, that's real ongoing cost paid for flexibility you may never use.
The question that actually decides it
Do multiple, different client applications need different views of overlapping data, at a scale where over-fetching is a real performance problem? If yes, GraphQL is worth the investment. If you're building one web app and one API to serve it, REST will get you to launch faster and stay simpler to operate for years afterward.
Where to start
- Default to REST unless you have a specific, named reason not to.
- Count your actual client applications — one client is a strong signal to stay with REST.
- If you do choose GraphQL, budget real time for resolver-level performance review, not just schema design.
- Revisit the decision when a second genuinely different client shows up, not before.
