Question

我已根据文档在下面实现了python代码，以便访问可通过公共链接访问的电子表格。它每小时工作一次。如果我在成功后几秒钟执行，我收到一个错误：

Error opening spreadsheet no element found: line 1, column 0

假设：访问令牌的有效期为1小时。因此，一小时后，appengine将进行令牌刷新，重置整个。

问题：此代码为每个请求请求一个新令牌。所以我该怎么做？保存令牌？当我尝试使用token_to_blob来保存令牌时，我收到一个错误：范围未定义

提前感谢您的帮助！

    try :
        credentials = AppAssertionCredentials(scope=('https://www.googleapis.com/auth/drive','https://spreadsheets.google.com/feeds','https://docs.google.com/feeds'))
        logging.info("credentials")
        http_auth = credentials.authorize(httplib2.Http())
        authclient = build('oauth2','v2',http=http_auth)
        auth2token = gdata.gauth.OAuth2TokenFromCredentials(credentials)
    except Exception as details:
        logging.error("Error Google credentials %s"%details)
        return "Error"

    try :
        gd_client = gdata.spreadsheets.client.SpreadsheetsClient()
        gd_client = auth2token.authorize(gd_client)
        feed = gd_client.GetListFeed(<spreadsheetKey>,1)
    except Exception as details:
        logging.error("Error opening spreadsheet %s"%details)
        return "Error"

Answer 1

我终于宣布了凭据＆amp;令牌为全局。在这种情况下，它正在为几个后续请求工作，但在1小时后，令牌无效。

我使用access_token_expired方法进行了测试，但此方法始终返回false。

所以，我最终系统地执行了刷新，它的工作原理。不优雅但功能齐全。另一种选择是存储下次刷新的时间，并且仅在1小时后刷新。

欢迎您提出优雅的选择。

我没有尝试gspread，因为其余的代码已经可用于gdata.spreadsheets，但也许我应该。

from oauth2client.contrib.appengine import AppAssertionCredentials
from oauth2client.client import Credentials
from oauth2client.service_account import ServiceAccountCredentials
from googleapiclient.discovery import build
import httplib2

global credentials
global auth2token
try :
    credentials = AppAssertionCredentials(scope=('https://www.googleapis.com/auth/drive','https://spreadsheets.google.com/feeds','https://docs.google.com/feeds'))
    http_auth = credentials.authorize(httplib2.Http())
    authclient = build('oauth2','v2',http=http_auth)
    auth2token = gdata.gauth.OAuth2TokenFromCredentials(credentials)
except Exception as details:
    logging.error("Error Google credentials %s"%details)

class importFromSpreadsheet(webapp2.RequestHandler):
    def __importFromSpreadsheet(self,u):
        try :
            credentials._refresh(httplib2.Http())
        except Exception as details:
            logging.error("Error refreshing Google credentials %s"%details)
...
        try :
            gd_client = gdata.spreadsheets.client.SpreadsheetsClient()
            gd_client = auth2token.authorize(gd_client)
            feed = gd_client.GetListFeed(u,1)
        except Exception as details:
            logging.error("Error opening 1st spreadsheet %s"%details)
            return "Error"

使用服务帐户从Google Appengine访问Google电子表格：每小时工作一次

1 个答案: