Rust Error Handling in Tauri Commands — The Pattern That Actually Works

All tests run on an 8-year-old MacBook Air. All results from shipping 7 Mac apps as a solo developer. No sponsored opinion. The first Tauri app I shipped had inconsistent error handling. Some commands returned strings. Some panicked. Some silently swallowed errors. Here's the pattern I settled on after 7 apps. The problem with naive error handling Tauri commands return Result where E must implement serde::Serialize. The temptation is to just return String for errors: rust#[tauri::command] fn do_