Function _start_server

pygwalker/api/webserver.py:123–154

Start a server with walker

(
    walker: PygWalker,
    port: Optional[int],
    *,
    auto_open: bool,
    auto_shutdown: bool,
)

def _start_server(
    walker: PygWalker,
    port: Optional[int],
    *,
    auto_open: bool,
    auto_shutdown: bool,
):
    """Start a server with walker"""
    state = _GlobalState(auto_shutdown=auto_shutdown)
    walker._init_callback(BaseCommunication(str(walker.gid)))

    handler = _create_handler_with_walker(walker, state)
    if port is None:
        port = find_free_port()
    address = f"http://localhost:{port}"

    def _listen_shutdown():
        while 1:
            time.sleep(1)
            if time.time() - state.last_health_time > _MAX_HEALTH_TIMEOUT_SECONDS:
                httpd.shutdown()
                break

    try:
        with CustomTCPServer(("127.0.0.1", port), handler) as httpd:
            if auto_open:
                threading.Thread(target=_open_browser, args=(address,)).start()
            if auto_shutdown:
                threading.Thread(target=_listen_shutdown).start()
            httpd.serve_forever()
    except KeyboardInterrupt:
        pass


def walk(