GraphQL vs REST: When to Pick Each, with a Strapi v5 Comparison

The debate between REST and GraphQL often centers around the misconception that REST forces over-fetching while GraphQL allows clients to request only the data they need. However, modern REST APIs, including those in Strapi v5, offer similar field selection capabilities through specifications like JSON:API and OData. While REST generally excels in areas like caching, error semantics, and operational tooling, GraphQL offers advantages in scenarios involving federation or when multiple clients require different data slices from the same graph. In Strapi v5, REST APIs are enabled by default, providing straightforward handling of file uploads and compatibility with OpenAPI for TypeScript type safety. GraphQL, available as a plugin, is beneficial in specific use cases such as custom queries and component-level field selection but requires additional setup and infrastructure management. While both APIs have their strengths and weaknesses, the decision on which to use often depends on specific project requirements and existing infrastructures, such as whether a frontend is already oriented around GraphQL libraries like Apollo or Relay. For most projects, REST remains a reliable choice, particularly when leveraging modern features and tools that address previous limitations.