Display the Server header from the response:

HttpResponse resp = requestResponse.response();
if (resp != null) {
    String val = resp.headerValue("Server");
    if (val != null) {
        return val;
    }
}
return "";

Display the GraphQL operation from the request:

HttpRequest req = requestResponse.request();
if (req != null) {
    String val = req.parameterValue("operationName", HttpParameterType.JSON);
    if (val != null) {
        return val.split("\\{|\\(")[0];
    }
}
return "";