Hono middleware patterns - creation, composition, built-in middleware, and execution order for web applications

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 Compressing responses Rate limiting API endpoints Validating requests before handlers Middleware Basics Inline Middleware Execution Order (Onion Model) Creating Reusable Middleware Context Variables Passing Data Between Middleware Built in Middleware CORS Bearer Auth Basic Auth JWT Auth Logger Pretty JSON Compress ETag Cache Secure Headers CSRF Protection Timeout Request ID Advanced Patterns Conditional Middleware Middleware Composition Modifying Responses Error Handling in Middleware Rate Limiting Middleware Order Best Practices Quick Reference Built in Middleware Middleware Import Purpose cors hono/cors Cross origin requests bearerAuth hono/bearer auth Bearer token auth basicAuth hono/basic auth HTTP Basic auth jwt hono/jwt JWT verification logger hono/logger Request logging prettyJSON hono/pretty json JSON formatting compress hono/compress Response compression etag hono/etag ETag headers cache hono/cache Response caching secureHeaders hono/secure headers Security headers csrf hono/csrf CSRF protection timeout hono/timeout Request timeout requestId hono/request id Request ID header Third Party Middleware Related Skills hono core Framework fundamentals hono validation Request validation with Zod hono cloudflare Cloudflare specific middleware Version : Hono 4.x Last Updated : January 2025 License : MIT

hono-middleware