The Complete Retrofit Lifecycle in a Real Android App

Short summary

Retrofit tutorial tracing a complete API request lifecycle through a Pokedex app built with Kotlin, Hilt, and Jetpack Compose. Covers interface definition, OkHttp and Gson configuration, dependency injection patterns, and the repository layer that decouples UI from data sources. Demonstrates reactive state management where Compose automatically recomposes when new data arrives.

• •Retrofit is a type-safe HTTP client that converts Kotlin interfaces into networked API calls with automatic JSON parsing
• •Three core components: API interface definition, Retrofit builder with OkHttp and Gson configuration, and data model classes
• •Repository pattern decouples ViewModels from network logic; @Singleton ensures Retrofit instance is built once and reused

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