C++ example code how to submit http comm using the Poco project

gistfile1.txt

$ more *.*
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CMakeLists.txt
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cmake_minimum_required (VERSION 3.5)
project (poco-VladoClientTest)

find_package (Poco REQUIRED Net)

add_executable (clientTest main.cpp)
target_link_libraries (clientTest Poco::Net)
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main.cpp
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#include <iostream>
#include <Poco/Net/HTTPClientSession.h>
#include <Poco/Net/HTTPRequest.h>
#include <Poco/Net/HTTPResponse.h>
#include <Poco/Net/NetException.h>

int main(int argc,char** argv)
{
        try {
                using namespace Poco::Net;
                HTTPClientSession session("www.seznam.cz",80);
                std::cout << "is connected? " << session.connected() << "\n"; //not yet

                HTTPRequest request(HTTPRequest::HTTP_GET, "/");
                session.sendRequest(request);
                //or, std::ostream &postDataGoesHere = session.sendRequest(request);
                std::cout << "is connected? " << session.connected() << "\n"; //already is

                HTTPResponse response;
                session.receiveResponse( response );

                std::cout << "got back: status = " << response.getStatus() << "\n";
                std::cout << "content starts:\n";
                response.write( std::cout );
                std::cout << "content ends:\n";
        }
        catch (Poco::Net::NetException& e) {
                std::cout << "Got exception: " << e.what() << "\n";
        }
        return 0;
}

here's how to communicate to SimViewer:

std::string msg("v1 points 2 dim 3 1 7.7 8.8 9.9 5 2 2 17.7 8.8 9.9 5 3");
std::string msG("v1 points 2 dim 3 333 7.7 8.8 19.9 5 2 444 17.7 8.8 19.9 5 3");

using namespace Poco::Net;

//HTTPClientSession session("httpbin.org",80); //btw, nice "echo server"
HTTPClientSession session("localhost",8765);
HTTPRequest request(HTTPRequest::HTTP_POST, "/simViewer"); //URI might change in the future

request.setContentLength(msg.size());
std::ostream &requestBody = session.sendRequest(request); //connects now!
requestBody << msg; //sends the data immediately!

request.setContentLength(msG.size());
std::ostream &requestBodyB = session.sendRequest(request); //connects now!
requestBodyB << msG; //sends the data immediately!

//hear back some acknowledgement:
HTTPResponse response;
std::istream &responseBody = session.receiveResponse(response);

if (response.getStatus() != HTTPResponse::HTTP_OK)
    std::cerr << "couldn't transfer the message!\n";
else
    std::cout << "message transferred!\n";