Worked on the axum repository to refactor rejection status handling for API development in Rust, focusing on performance and maintainability. The approach involved converting the status function for JsonRejection, QueryRejection, and PathRejection into a const function, enabling compile-time determination of status codes and reducing runtime overhead. This change standardized rejection handling across multiple axum crates, improving cross-crate consistency and lowering the cost of status resolution during API requests. The work leveraged Rust’s compile-time features and web frameworks expertise to deliver faster API responses and more maintainable code, with the primary contribution being a feature addition rather than bug fixes.