package middleware import "net/http" const KeyContentType = "Content-Type" func JsonContentTypeMiddleware(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set(KeyContentType, "application/json") next.ServeHTTP(w, r) }) } func HtmlContentTypeMiddleware(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { w.Header().Set(KeyContentType, "text/html") next.ServeHTTP(w, r) }) }