func (db database) ServeHTTP(w http.ResponseWriter, req *http.Request) {
	for item, price := range db {
		fmt.Fprintf(w, "%s: %s\n", item, price)
	}
}
//implement http.Handler (missing ServeHTTP method)
//
implement http.Handler (missing ServeHTTP method)
// implement http . Handler ( missing ServeHTTP method ) //
func (db database) ServeHTTP(w http.ResponseWriter, req *http.Request) {
	for item, price := range db {
		fmt.Fprintf(w, "%s: %s\n", item, price)
	}
}
func ( db database ) ServeHTTP ( w http . ResponseWriter , req * http . Request ) { for item , price := range db { fmt . Fprintf ( w , " \n " , item , price ) } }
implement http.Handler (missing ServeHTTP method)
implement http . Handler ( missing ServeHTTP method )