axum-knowledge-patch

Migrate Axum 0.8 code by updating path parameter syntax, applying native async extractor traits, and enforcing Sync handler bounds to prevent runtime panics. Curated knowledge patches map these breaking changes to ensure refactored routes and handlers match the new API requirements.

Axum 0.8 extractor changes include native async extractor traits and modified OptionalFromRequestParts semantics. Developers must update custom extractor implementations to align with these trait changes and avoid behavioral regressions during request processing.

Axum WebSocket handlers fail due to updated message types requiring Utf8Bytes and Bytes. You must rewrite WebSocket handling logic to match these new message type requirements and prevent runtime type mismatches during message processing.

Update Axum 0.8 routing syntax by applying the new path parameter conventions and using updated router APIs. Enforcing the new path syntax prevents routing behavioral regressions and ensures path extraction works correctly in refactored handlers.

Axum 0.8 introduces convenience types like NoContent and router fallbacks including method_not_allowed_fallback and reset_fallback. You can implement these new router APIs to handle empty responses and method routing edge cases cleanly.

Manual Axum 0.8 migration risks missing subtle breaking changes like WebSocket message type updates and Sync handler bounds. Without verified migration guidance, refactored Rust services may introduce hidden behavioral regressions and runtime panics.