middleware▌

Hono provides a powerful middleware system with an "onion" execution model. Middleware processes requests before handlers and responses after handlers, enabling cross-cutting concerns like authentication, logging, and CORS.

Master Inngest middleware to handle cross-cutting concerns like logging, error tracking, dependency injection, and data transformation. Middleware runs at key points in the function lifecycle, enabling powerful patterns for observability and shared functionality.

Human-in-the-loop approval, custom middleware, and structured output patterns for LangChain agents. \n \n HumanInTheLoopMiddleware pauses execution before dangerous tool calls, allowing humans to approve, edit arguments, or reject with feedback \n Per-tool interrupt policies let you configure different approval rules based on risk level; requires a checkpointer and thread_id for state persistence \n Command resume pattern continues execution after human decisions, with support for editing tool a