使用服务帐户访问Google表格时未定义回叫

时间:2018-04-23 16:04:24

标签: javascript node.js google-api google-sheets-api google-api-nodejs-client

我正在尝试从公开的Google表格中访问数据。该工作表具有对任何人的只读访问权限。我正在使用official Node.js client。我使用服务帐户来验证请求,因为我使用相同的服务帐户访问另一张无法公开的工作表。

代码运行正常,但是一旦我将Node.js客户端更新到最新版本,它就开始给我带来奇怪的错误。我已经为错误创建了一个缩小的示例,这里是代码 -

/*eslint-disable no-console */
const { promisify } = require('util');
const GoogleAuth = require('google-auth-library');
const { google } = require('googleapis');
const googleAuth = new GoogleAuth();

const sheets = google.sheets('v4');
sheets.spreadsheets.values.getAsync = promisify(sheets.spreadsheets.values.get);

async function authorizeWithServiceAccount(serviceAccountKey, scopes) {
  try {
    let authClient = await authorize(serviceAccountKey, scopes);
    return authClient;
  } catch (err) {
    console.error(err);
    throw err;
  }
}

function authorize(credentials, scopes) {
  return new Promise((resolve, reject) => {
    googleAuth.fromJSON(credentials, (err, client) => {
      if (err) {
        console.error(err);
        reject(err);
        return;
      }
      client.scopes = scopes;
      client.authorize((err, result) => {
        if (err) {
          console.error(err);
          reject(err);
          return;
        }
        console.log(result, true);
        resolve(client);
      });
    });
  });
}

async function getData(auth, spreadsheetId, range) {
  try {
    return sheets.spreadsheets.values.getAsync({
      auth: auth,
      spreadsheetId: spreadsheetId,
      range: range
    });
  } catch (e) {
    console.error(e);
    throw e;
  }
}

const serviceAccountJson = require('../configs/keys/service_account'); //The service account json key
const spreadsheetId = 'SPREADSHEET_ID'; // Id of the sheet I am trying to access
const apiKey = 'THE_API_KEY'; //Any API key generated on Google's API console
const range = 'A:M';

async function init() {
  let authClient = await authorizeWithServiceAccount(serviceAccountJson, [
    'https://www.googleapis.com/auth/spreadsheets.readonly'
  ]);
  return getData(authClient, spreadsheetId, range); //This doesn't work and throw error
  // return getData(apiKey, spreadsheetId, range); //This does work and return all the data.
}

init()
  .then(result => {
    console.log('Received Data');
    console.log(result.data);
  })
  .catch(e => console.error(e));

因此,如果我使用API​​密钥而不是服务帐户作为auth参数,我会按预期获得正确的数据。但是,只要我使用服务帐户,result.data就会变为undefined,然后我就会收到此错误。

TypeError: callback is not a function
    at JWT.OAuth2Client.postRequest (/Volumes/Projects/Work/node_modules/google-auth-library/lib/auth/oauth2client.js:341:9)
    at postRequestCb (/Volumes/Projects/Work/node_modules/google-auth-library/lib/auth/oauth2client.js:297:23)
    at Request._callback (/Volumes/Projects/Work/node_modules/google-auth-library/lib/transporters.js:113:17)
    at Request.self.callback (/Volumes/Projects/Work/node_modules/request/request.js:186:22)
    at emitTwo (events.js:126:13)
    at Request.emit (events.js:214:7)
    at Request.<anonymous> (/Volumes/Projects/Work/node_modules/request/request.js:1163:10)
    at emitOne (events.js:116:13)
    at Request.emit (events.js:211:7)
    at IncomingMessage.<anonymous> (/Volumes/Projects/Work/node_modules/request/request.js:1085:12)

我之前使用googleapis库版本25.x并且当时服务帐户auth正在运行,但是一旦我将其更新为28.x,它就会停止工作。

有没有办法在28.x googleapis node.js客户端中使用服务帐户而不是API密钥?我不能降级它,因为我使用的是需要最新版本的其他Google API。

2 个答案:

答案 0 :(得分:1)

好的,我再次看了documentation,他们在一个地方about how to do it提到了它。我以前使用像这样的google-auth库 -

const GoogleAuth = require('google-auth-library');
const googleAuth = new GoogleAuth();

在前面的文档中提到过。我想在表格API的文档中,无法记住。但他们现在正在使用googleapis包和工作表API支持auth。因此我所要做的就是切换到使用auth。所以这就是我现在获得authClient的方式,并且它正在进行测试。

const { google } = require('googleapis');
const authClient = await google.auth.getClient({
    credentials: credentials,
    scopes: scopes
  });

现在,我正在使用最新的googleapis package / Node.js client获取正确的数据。

所以问题是我如何获得authClient。较旧的方式似乎与最新的客户端不兼容。

答案 1 :(得分:0)

理论:sheets.values.get做得很奇怪,promisify无效。

可能的解决方法: 手动promisify getData

async function getData(auth, spreadsheetId, range) {
  return new Promise((resolve, reject) => {
    sheets.spreadsheets.values.get({
      auth: auth,
      spreadsheetId: spreadsheetId,
      range: range
    }, (error, result) => {
      if (error) {
        return reject(error);
      }
      resolve(result);
    });
  });
}