IXWebSocket/examples/echo_server/echo_server.cpp

/*
 *  echo_server.cpp
 *  Author: Benjamin Sergeant
 *  Copyright (c) 2018 Machine Zone, Inc. All rights reserved.
 */

#include <iostream>
#include <sstream>
#include <ixwebsocket/IXWebSocketServer.h>

int main(int argc, char** argv)
{
    int port = 8080;
    if (argc == 2)
    {
        std::stringstream ss;
        ss << argv[1];
        ss >> port;
    }

    ix::WebSocketServer server(port);

    server.setOnConnectionCallback(
        [&server](std::shared_ptr<ix::WebSocket> webSocket)
        {
            webSocket->setOnMessageCallback(
                [webSocket, &server](ix::WebSocketMessageType messageType,
                   const std::string& str,
                   size_t wireSize,
                   const ix::WebSocketErrorInfo& error,
                   const ix::WebSocketOpenInfo& openInfo,
                   const ix::WebSocketCloseInfo& closeInfo)
                {
                    if (messageType == ix::WebSocket_MessageType_Open)
                    {
                        std::cerr << "New connection" << std::endl;
                        std::cerr << "Uri: " << openInfo.uri << std::endl;
                        std::cerr << "Headers:" << std::endl;
                        for (auto it : openInfo.headers)
                        {
                            std::cerr << it.first << ": " << it.second << std::endl;
                        }
                    }
                    else if (messageType == ix::WebSocket_MessageType_Close)
                    {
                        std::cerr << "Closed connection" << std::endl;
                    }
                    else if (messageType == ix::WebSocket_MessageType_Message)
                    {
                        webSocket->send(str);
                    }
                }
            );
        }
    );

    auto res = server.listen();
    if (!res.first)
    {
        std::cerr << res.second << std::endl;
        return 1;
    }

    server.start();
    server.wait();

    return 0;
}