drogon/examples/client_example/main.cc

#include <drogon/drogon.h>
#include <iostream>
#include <future>

using namespace drogon;

int main()
{
    trantor::Logger::setLogLevel(trantor::Logger::TRACE); 
    {
        int count = 0;
        auto client = HttpClient::newHttpClient("http://www.baidu.com");
        auto req = HttpRequest::newHttpRequest();
        req->setMethod(drogon::Get);
        req->setPath("/s");
        req->setParameter("wd", "weixin");

        for (int i = 0; i < 10; i++)
        {
            client->sendRequest(req, [&count](ReqResult result, const HttpResponsePtr &response) {
                std::cout << "receive response!" << std::endl;
                //auto headers=response.
                count++;
                std::cout << response->getBody() << std::endl;
                auto cookies = response->cookies();
                for (auto const &cookie : cookies)
                {
                    std::cout << cookie.first << "=" << cookie.second.value() << ":domain=" << cookie.second.domain() << std::endl;
                }
                std::cout << "count=" << count << std::endl;
            });
        }
    }

    app().run();
}