Hono Middleware Patterns

Overview

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.

Key Features:

• Onion-style execution order
• Type-safe middleware creation with createMiddleware
• 25+ built-in middleware
• Context variable passing between middleware
• Async/await support throughout

When to Use This Skill

Use Hono middleware when:

• Adding authentication/authorization
• Implementing CORS for cross-origin requests
• Adding request logging or timing