rust-error-handling

Design structured error hierarchies in Rust by deriving custom error enums with thiserror for typed library variants and using anyhow to propagate runtime errors with contextual messages in application code.

Use thiserror for library crates requiring typed, ergonomic error variants, and use anyhow for application code needing context-rich error propagation and ergonomic conversion paths between architectural layers.

Add context to error propagation in Rust applications by using anyhow to attach contextual messages during runtime error handling, enabling domain-specific error hierarchies and clear debugging-friendly error outputs.

Implement ergonomic error conversion paths in Rust libraries by using the thiserror #[from] attribute to automatically generate From implementations, ensuring structured and testable error messages across domain layers.

Yes, thiserror works with domain-specific error types in Rust by deriving Error on custom enums, allowing libraries to compose structured error hierarchies with clear, testable error messages.

Using anyhow for Rust library errors limits typed error matching because it focuses on context-rich propagation rather exposing specific variants, making it less suitable for public APIs requiring structured error hierarchies.