package main import ( "net/http" "strconv" ) const ( HttpOK = "HTTP/1.1 200 OK\r\n" MethodRDGIN = "RDG_IN_DATA" MethodRDGOUT = "RDG_OUT_DATA" ) // httpError is like the http.Error with WebSocket context exception. func httpError(w http.ResponseWriter, body string, code int) { w.Header().Set("Content-Type", "text/plain; charset=utf-8") w.Header().Set("Content-Length", strconv.Itoa(len(body))) w.WriteHeader(code) w.Write([]byte(body)) }