def update_jsapi_ticket():
try:
wx_access_token = WxAccessToken.get(WxAccessToken.appid == WX_APP_ID)
except DoesNotExist:
raise Exception('Need to get access token before request for jsapi ticket')
jsapi_ticket_url = create_jsapi_ticket_url(wx_access_token.token)
ret_text = urlopen(jsapi_ticket_url).read().strip().decode('utf8', 'ignore')
ret_data = json.loads(ret_text)
if u'ticket' not in ret_data:
raise Exception('Error occurs when trying to get jsapi ticket')
ticket, expire = ret_data[u'ticket'], ret_data[u'expires_in']
wx_jsapi_ticket, _ = WxJsapiTicket.get_or_create(appid=WX_APP_ID)
wx_jsapi_ticket.ticket = ticket
wx_jsapi_ticket.expires_in = expire
if not wx_jsapi_ticket.save():
raise Exception('Error occurs when saving jsapi ticket to database')
print('Get jsapi ticket %s which will expire in %s seconds' % (ticket, expire))
return ticket, int(expire)
