package main import ( "fmt" "net/http" "os" ) func f1(w http.ResponseWriter, r *http.Request) { b, err := os.ReadFile("./HTTP/fronted.html") if err != nil { w.Write([]byte(fmt.Sprintf("%v", err))) return } w.Write(b) } // http server func main() { http.HandleFunc("/web", f1) http.ListenAndServe("127.0.0.1:9090", nil) }