如何使用python成功接收googledrivev3推送通知?

push notifications 使用驱动器API。一切都按照描述进行,除了我没有收到任何来自谷歌的通知,每当发生变化(列为下面的第4步)。

:验证您是否拥有域

我去搜索控制台的指示,并成功地验证了该网站。

步骤2(成功) :注册您的域

我访问了域验证页面,并在API控制台中添加了我的域。谷歌API控制台更新显示与我所需的域列表。

我有一个有效的SSL证书从GoDaddy为我的域,并已验证,以及。

步骤3(成功) :已创建我的通知频道

channel_id = str(uuid.uuid4())

body = {
    'kind': 'api#channel',
    'id': channel_id,
    'type': 'web_hook',
    'address': "https://my_domain.com/notifications"
}


try:
    start_page_token = service.changes().getStartPageToken().execute().get('startPageToken');
    print(service.changes().watch(pageToken=start_page_token, body=body).execute())
except Exception as e: 
    print('Exception: {}'.format(e))

{u'resourceId': u'vTMwJWl7a23Af1LK1TpJZ38eO_0', u'kind': u'api#channel', u'expiration': u'1538433975000', u'id': u'dce14225-95c8-42a7-9945-4fed1604c848', u'resourceUri': u'https://www.googleapis.com/drive/v3/changes?alt=json&includeCorpusRemovals=false&includeRemoved=true&includeTeamDriveItems=false&pageSize=100&pageToken=4919&restrictToMyDrive=false&spaces=drive&supportsTeamDrives=false&alt=json'}

我在appengine上运行一个Flask网站,并创建了一个app.route 从谷歌接收通知。我已经包括了下面的代码。我从未在这个网址收到任何东西。

@app.route('/notifications')
def notifications():
    print('in notifications()')

    try:
        chan_id = request.args.get('X-Goog-Channel-ID', 'empty')
        msg_num = request.args.get('X-Goog-Message-Number', 'empty')
        rid = request.args.get('X-Goog-Resource-ID', 'empty')
        state = request.args.get('X-Goog-Resource-State', 'empty')  
        resource_uri = request.args.get('X-Goog-Resource-URI', 'empty') 
        goog_changed = request.args.get('X-Goog-Changed', 'empty')
        goog_chan_exp = request.args.get('X-Goog-Channel-Expiration', 'empty')
        goog_chan_token = request.args.get('X-Goog-Channel-Token', 'empty')

        print('chan_id: {}'.format(chan_id))
        print('msg_num: {}'.format(msg_num))
        print('rid: {}'.format(rid))
        print('state: {}'.format(state))
        print('resource_uri: {}'.format(resource_uri))
        print('goog_changed: {}'.format(goog_changed))
        print('goog_chan_exp: {}'.format(goog_chan_exp))
        print('goog_chan_token: {}'.format(goog_chan_token))


    except Exception as e:
        print('notifications() exception: {}'.format(e))

    print('leaving notifications()')

    return jsonify(result='done')