shared-models

Shared data models in Kotlin Multiplatform use @Serializable data classes defined in shared/commonMain, enabling consistent serialization across all platform targets. Place domain models in the shared module, apply kotlinx.serialization annotations, and import them from Android, iOS, and desktop targets to ensure unified data interchange.

Validation utilities placed in shared/commonMain enforce consistent data integrity across all platforms. Implement validation logic once in the shared module using simple validation utilities alongside your @Serializable models, then reuse that logic from every target to prevent platform-specific inconsistencies.

Yes, sealed hierarchies are ideal for modeling UI states and results in Kotlin Multiplatform projects. Define sealed classes in shared/commonMain with @Serializable annotations to create predictable, type-safe state representations that serialize consistently across Android, iOS, and desktop platforms.

Yes, kotlinx.serialization is required for consistent cross-platform serialization. Enable the Kotlin Multiplatform plugin and kotlinx.serialization in your shared module, then annotate data classes with @Serializable to ensure reliable data interchange across all targets.

Immutable @Serializable data classes ensure predictable behavior and thread-safe data interchange across Android, iOS, and desktop targets. Immutability prevents accidental mutations that could cause platform-specific bugs and simplifies serialization/deserialization logic in shared models.