rust-errors

Standardizing Rust errors for TypeScript involves using internally tagged enums with serde to serialize error data into a predictable JSON shape. This pattern ensures a robust cross-language boundary for Tauri commands.

Using internal tagging via serde is the best way to serialize Rust error enums for TypeScript discriminated unions. This approach creates a stable JSON representation that maps variants directly to TypeScript handling paths.

Serde internal tagging works for cross-language error handling by embedding a discriminator field within the JSON representation of your Rust error enum. This allows TypeScript to safely interpret and present errors using standard discriminated union checks.

Yes, you can map custom Rust error variants like ModelLoadError or GpuError to TypeScript types in Tauri. The pattern provides clear guidance for naming conventions and error variant design across the boundary.

Rust to TypeScript error handling becomes brittle in Tauri commands without consistent JSON shapes. Standardizing error surfaces with a discriminated union pattern and serde ensures a stable representation to resolve this maintenance issue.