flutter-retrofit-networking

To create a type-safe REST API client in Flutter, define your API interface using Retrofit annotations and configure Dio for HTTP requests. This enforces structured API definitions, reducing runtime errors and boilerplate.

Automatic token refresh and 401 retry flows in Flutter are handled by configuring an AuthInterceptor with Dio. It intercepts failing requests, refreshes the Bearer token, and automatically retries the original request.

Mapping REST API JSON responses to domain models in Flutter is best achieved by serializing DTOs with freezed and JsonSerializable, then explicitly mapping those DTOs to your domain entities for safe data handling.

Handling unknown enum values from a REST API in Flutter requires safe enum handling during DTO serialization. This guards your application against unexpected backend changes by safely catching unmapped values.

Yes, you can use Retrofit annotations to define multiple API endpoints for a scalable Flutter app. This approach ensures consistent error handling, structured API definitions, and type-safe request execution across services.

Flutter apps suffer from runtime errors with weakly typed REST APIs due to heavy boilerplate and lack of compile-time type safety. Using Retrofit and freezed DTOs eliminates these issues by enforcing strict API definitions.