Function start_server

pywebio/platform/flask.py:134–181

Start a Flask server to provide the PyWebIO application as a web service. :param int session_expire_seconds: Session expiration time, in seconds(default 600s). If no client message is received within ``session_expire_seconds``, the session will be considered expired. :param int sessi

(applications, port=8080, host='', cdn=True,
                 static_dir=None, remote_access=False,
                 allowed_origins=None, check_origin=None,
                 session_expire_seconds=None,
                 session_cleanup_interval=None,
                 debug=False,
                 max_payload_size='200M',
                 **flask_options)

def start_server(applications, port=8080, host='', cdn=True,
                 static_dir=None, remote_access=False,
                 allowed_origins=None, check_origin=None,
                 session_expire_seconds=None,
                 session_cleanup_interval=None,
                 debug=False,
                 max_payload_size='200M',
                 **flask_options):
    """Start a Flask server to provide the PyWebIO application as a web service.

    :param int session_expire_seconds: Session expiration time, in seconds(default 600s).
       If no client message is received within ``session_expire_seconds``, the session will be considered expired.
    :param int session_cleanup_interval: Session cleanup interval, in seconds(default 300s).
       The server will periodically clean up expired sessions and release the resources occupied by the sessions.
    :param bool debug: Flask debug mode.
       If enabled, the server will automatically reload for code changes.
    :param int/str max_payload_size: Max size of a request body which Flask can accept.
    :param flask_options: Additional keyword arguments passed to the ``flask.Flask.run``.
       For details, please refer: https://flask.palletsprojects.com/en/1.1.x/api/#flask.Flask.run

    The arguments of ``start_server()`` have the same meaning as for :func:`pywebio.platform.tornado.start_server`
    """
    if not host:
        host = '0.0.0.0'

    if port == 0:
        port = get_free_port()

    app = wsgi_app(applications, cdn=cdn, static_dir=static_dir, allowed_origins=allowed_origins,
                   check_origin=check_origin, session_expire_seconds=session_expire_seconds,
                   session_cleanup_interval=session_cleanup_interval, max_payload_size=max_payload_size)

    print_listen_address(host, port)

    debug = Session.debug = os.environ.get('PYWEBIO_DEBUG', debug)
    if not debug:
        logging.getLogger('werkzeug').setLevel(logging.WARNING)

    running_from_reloader = werkzeug.serving.is_running_from_reloader()
    if remote_access and not running_from_reloader:
        start_remote_access_service(local_port=port)

    has_coro_target = any(iscoroutinefunction(target) or isgeneratorfunction(target) for
                          target in make_applications(applications).values())
    if has_coro_target and not running_from_reloader:
        threading.Thread(target=run_event_loop, daemon=True).start()

    app.run(host=host, port=port, debug=debug, threaded=True, use_evalex=False, **flask_options)