Segment faults ~_~

webserver.vala

class Webserver {

    public string get_session_id (out unowned Soup.Message msg)
    {
        unowned Soup.MessageHeaders headers = msg.response_headers;
        unowned Soup.MessageHeaders request_headers = msg.request_headers;
        
        string sid = "";

        return sid;
    }

    void default_handler (Soup.Server server, Soup.Message msg, string path,
                          GLib.HashTable? query, Soup.ClientContext client)
    {
        var session_id = this.get_session_id (out msg);
        
        string response_text = "Hello World " + session_id;

        msg.set_response ("text/html", Soup.MemoryUse.COPY,
                          response_text.data);
    }

    public static int main(string[] args) {
        var webserver = new Webserver ();
        var server = new Soup.Server (
            Soup.SERVER_PORT, 8000
        );
        server.add_handler ("/", webserver.default_handler);
        
        
        stdout.printf("Running...\n");

        server.run ();

        return 0;
    }
}