gistfile1.cpp

struct echo_service 
{
    struct handler : public handler_base
    {
        handler(ip::tcp::socket& socket) : handler_base(socket) {}

        void handle_data(const std::string& readbuf) 
        { 
            io::async_write(socket_, buffer(readbuf), ignore());
        }
    };

    typedef transport::tcp transport;
    typedef raw_receiver<handler> protocol;
};

typedef server<echo_service> echo_server;

int main(void) { 
    std::make_shared<echo_server>("127.0.0.1", "8092")->start();
    return 0;
}