从云函数中读取/写入 Google 表格

Question

我正在尝试从谷歌云函数中调用表格 API，以便从 Google 表格中读取数据并写入 Google 表格。我的访问凭据存储在一个名为creds_bucket 的谷歌存储桶中，位于一个名为my_creds.json 的文件中。我使用的两个电子表格都有链接到它们的“my_creds”电子邮件，并且所有相关的 API 都已为项目启用。

这是我的代码....我收到一个 KEY 错误，说它无法识别 creds_bucket 。是什么驱动了这一切？

import httplib2
from apiclient.discovery import build
from oauth2client.service_account import ServiceAccountCredentials
import os
import json
from google.cloud import storage

def main(data, context):

    blob = storage.Client().get_bucket(os.environ['creds_bucket']).get_blob('my_creds.json').download_as_string()

    parsed_json_creds = json.loads(blob)

    scope = ['https://www.googleapis.com/auth/drive','https://www.googleapis.com/auth/spreadsheets']
    credentials = ServiceAccountCredentials.from_json_keyfile_name(parsed_json_creds, scope)

    service = build('sheets', 'v4', http=credentials.authorize(httplib2.Http()))

    spreadsheet_id_input = 'spreadsheetinput_ID'
    range_input = 'Sheet1!A1:D10'

    spreadsheet_id_ouput = 'SPREADHEET_Output_ID'
    range_ouput = 'Sheet1!A1:D10'

    # pull data from input google sheet
    response = service.spreadsheets().values().get(spreadsheetId=spreadsheet_id_input, range=range_input).execute()
    # export pulled data from input sheet to output sheet
    request2 = service.spreadsheets().values().update(spreadsheetId=spreadsheet_id_ouput, range=range_ouput, body=response)
    response2 = request2.execute()

  File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 383, in run_background_function
    _function_handler.invoke_user_function(event_object)
  File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 217, in invoke_user_function
    return call_user_function(request_or_event)
  File "/env/local/lib/python3.7/site-packages/google/cloud/functions/worker.py", line 214, in call_user_function
    event_context.Context(**request_or_event.context))
  File "/user_code/main.py", line 10, in main
    blob = storage.Client().get_bucket(os.environ['creds_bucket']).get_blob('my_creds.json').download_as_string()
  File "/env/lib/python3.7/os.py", line 678, in __getitem__
    raise KeyError(key) from None
KeyError: 'creds_bucket'

Answer 1

您遇到的KeyError 错误是由os.environ function 未找到任何名为“creds_bucket”的环境变量引起的。

要修复它，请尝试 attaching an environment variable 将该名称添加到函数中，您可以这样做：

在控制台中编辑函数并在“环境”部分添加一个变量

或者

使用带有“--update-env-vars”标志的 gcloud 命令重新部署函数