Function main

example/http/client/async-ssl/http_client_async_ssl.cpp:214–256

//------------------------------------------------------------------------------

int main(int argc, char** argv)
{
    // Check command line arguments.
    if(argc != 4 && argc != 5)
    {
        std::cerr <<
            "Usage: http-client-async-ssl <host> <port> <target> [<HTTP version: 1.0 or 1.1(default)>]\n" <<
            "Example:\n" <<
            "    http-client-async-ssl www.example.com 443 /\n" <<
            "    http-client-async-ssl www.example.com 443 / 1.0\n";
        return EXIT_FAILURE;
    }
    auto const host = argv[1];
    auto const port = argv[2];
    auto const target = argv[3];
    int version = argc == 5 && !std::strcmp("1.0", argv[4]) ? 10 : 11;

    // The io_context is required for all I/O
    net::io_context ioc;

    // The SSL context is required, and holds certificates
    ssl::context ctx{ssl::context::tlsv12_client};

    // This holds the root certificate used for verification
    load_root_certificates(ctx);

    // Verify the remote server's certificate
    ctx.set_verify_mode(ssl::verify_peer);

    // Launch the asynchronous operation
    // The session is constructed with a strand to
    // ensure that handlers do not execute concurrently.
    std::make_shared<session>(
        net::make_strand(ioc),
        ctx
        )->run(host, port, target, version);

    // Run the I/O service. The call will return when
    // the get operation is complete.
    ioc.run();

    return EXIT_SUCCESS;
}