Error Handling

Handle errors gracefully with typed error factories, per-route handlers, and global fallbacks.

Nooh gives you two levels of error handling: per-route typed error factories that make throwing structured errors ergonomic, and global or group-level onError handlers that catch anything not handled locally.

Errors

Defining and throwing typed errors in route handlers.

Error handlers

Per-route, per-group, and global error handlers.

HTTP errors

Working with Hono’s built-in HTTP error classes.