Consuming GraphQL APIs in Mobile Apps: Setup and Caching
Spare yourself struggling with manual JSON parsing and inconsistent mobile data fetching. This deep-dive tutorial shows you exactly how to set up Apollo Client for both Android (Kotlin) and iOS (Swift) to consume GraphQL APIs efficiently. We cover the mandatory steps: schema introspection, type-safe code generation, and the critical implementation of normalized caching. Learn the precise keying strategy for cache hits, how to configure persistent disk storage for offline support, and the optimal fetch policies (CacheFirst, CacheAndNetwork) to minimize network traffic. We conclude with a production checklist for robust error handling and manual cache updates during mutations. Master mobile GraphQL consumption and build truly performant applications.
00:00: Choosing the Right GraphQL Client
01:08: Schema Definition and Codegen Setup
02:24: Executing Queries and Data Mapping
03:41: Normalized Cache Keying Strategy
04:45: Configuring Persistent Disk Cache
05:46: Fetch Policies and Network Reduction
06:50: Mutations and Manual Cache Updates
07:56: Production Error Handling Checklist