HTTP Middleware
Last Updated: May 22, 2026
High Priority
6 min read
Middleware in Go is a function that wraps an http.Handler to add behavior before, after, or around the wrapped handler's work. It's how you add logging, authentication, panic recovery, and timing without copying the same code into every handler. This lesson covers the wrapper pattern, three useful middlewares for an e-commerce API, chaining, and ordering rules.