GraphQL Basics
GraphQL is a query language for APIs that allows clients to request exactly the data they need, offering an alternative to traditional REST API design. This tutorial covers the basics of using GraphQL in React Native.
What is GraphQL?
Unlike REST, which exposes multiple fixed endpoints, GraphQL exposes a single endpoint where clients send queries specifying exactly which fields they want returned.
Installing Apollo Client
Apollo Client is the most popular library for integrating GraphQL into React Native applications, handling caching, queries, and mutations.
Setting Up Apollo Client
Running a Query
GraphQL vs REST
GraphQL reduces over-fetching and under-fetching of data by letting clients specify exactly what they need, while REST relies on multiple fixed endpoints that may return more or less data than required.
Conclusion
GraphQL, combined with Apollo Client, provides a powerful and flexible way to fetch exactly the data your React Native application needs, reducing unnecessary network overhead compared to traditional REST endpoints.
