Practical uses
- Build backend API for multiple clients (web, mobile).
- Enable frontend autonomy on data shape.
- Integrate multiple data sources via single gateway.
Pros and cons
What GraphQL does especially well — and the limits to anticipate.
Pros
- Declarative queries and zero over/under-fetching.
- Strongly-typed and self-documenting schema.
- Seamless API versioning without client breaks.
- Mature ecosystem with tools and frameworks.
Cons
- Steeper learning curve than REST.
- Caching more complex (single endpoint).
- N-plus-one queries possible if poorly optimized.
- Overhead for very small APIs.
GraphQL: when it makes sense.
GraphQL suits scalable and flexible APIs; for simple projects where REST suffices, GraphQL overhead may be unjustified.
Keep if
You build modern, highly flexible APIs.. You need declarative and performant queries.
Challenge if
You're just starting with APIs (REST is simpler).. Your use case is very simple (basic CRUD).
