Android Networking

3. Add Cross-Cutting Concerns

• Use OkHttp Interceptors for Bearer token injection and HttpLoggingInterceptor (debug only).
• Wrap responses with Result wrapper or Either in Repository layer.
• Define R8/ProGuard rules for Retrofit/OkHttp when isMinifyEnabled = true.
• Use MockWebServer for unit/integration tests — cover 500, 401, 403 error cases.

Anti-Patterns

• No Blocking Network Calls: All API functions must suspend.
• No Logic in API Interface: Only declare endpoints — handle errors in Repository.
• No Raw Converter Factory: Explicitly set "application/json" MediaType with kotlinx.serialization.

References

• Setup & Wrappers3b:["$","$L45",null,{"content":"$46","frontMatter":{"name":"android-networking","description":"Integrate Retrofit, OkHttp, and Kotlinx Serialization for type-safe API communication in Android. Use when building API clients, adding interceptors, or configuring network security. (triggers: **/*Api.kt, **/*Service.kt, **/*Client.kt, Retrofit, OkHttpClient, @GET, @POST)"}}]