package web import ( "net/http" "net/http/httputil" "net/url" ) func (ws *WebServer) configureProxy() { // Reverse proxy to the application server u, _ := url.Parse("http://localhost:8000") rp := httputil.NewSingleHostReverseProxy(u) rp.ErrorHandler = ws.proxyErrorHandler ws.m.PathPrefix("/").Handler(rp) } func (ws *WebServer) proxyErrorHandler(rw http.ResponseWriter, req *http.Request, err error) { ws.log.WithError(err).Warning("proxy error") rw.WriteHeader(http.StatusBadGateway) }