package main import ( "fmt" "net/http" "os" "golang.org/x/net/http2" ) func main() { // Your code here mux := http.NewServeMux() svr := &http.Server{ Addr: fmt.Sprintf("%s:%s", os.Getenv("HOST"), os.Getenv("PORT")), Handler: mux, } http2.ConfigureServer(svr, nil) actions(mux) // Register actions with the multiplexer fmt.Printf("Starting server on %s:%s\n", os.Getenv("HOST"), os.Getenv("PORT")) err := svr.ListenAndServe() if err != nil { panic(err) } }