func(http.Handler) http.Handler

General Middleware

• NOOP does nothing

Content Negotiation

• AcceptMiddleware() alters the Accept header so only a given set is passed to the next handler in the chain

Error Handling Middleware

• WithErrorHandlerMiddleware()

Special Handlers

• HTTPSRedirectHandler a handler that will redirect to https if non-https, or return 404 already https

Error Handlers

we define an ErrorHandler as a function like:

func (http.ResponseWriter, *http.Request, error)

WithErrorHandler() and ErrorHandler() add and read the context for such handler