drogon/examples/simple_example/ListParaCtl.cc

#include "ListParaCtl.h"
void ListParaCtl::asyncHandleHttpRequest(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback)
{
    //write your application logic here
    HttpViewData data;
    data.insert("title", "list parameters");
    data.insert("parameters", req->getParameters());
    auto res = drogon::HttpResponse::newHttpViewResponse("ListParaView.csp", data);
    callback(res);
}