gmail API 无法工作，无法解构属性 'client_secret'

Question

我尝试按照 gmail 教程中的说明进行操作，但行不通。我下载了 credentials.json 文件和 index.js 文件，每当我运行它与 node 。它给了我以下错误：

  const {client_secret, client_id, redirect_uris} = credentials.installed;
         ^

TypeError: Cannot destructure property `client_secret` of 'undefined' or 'null'.
    at authorize (/var/www/html/index.js:26:65)
    at fs.readFile (/var/www/html/index.js:16:3)
    at FSReqWrap.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3)

Answer 1

在您的 credentials.json 文件中，检查对象键是否不同于“已安装”。就我而言，我第一次测试 gmail api 时，在 console.developers.google.com/ 上创建应用程序时选择了“web 应用程序”。所以，我的 credentials.json 有一个“web”键，而不是“installed”，这是 api 页面给你的例子。

您可以返回 https://developers.google.com/gmail/api/quickstart/nodejs 并再次单击“启用 Gmail API”，但如果您在本地主机上进行测试，这次请选择“桌面”选项。

Answer 2

如果你查看教程Node.js Quickstart

它与您一起为 Web 应用程序创建 credentials.json 文件。记得启用 Gmail api.

const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');

// If modifying these scopes, delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/gmail.readonly'];
// The file token.json stores the user's access and refresh tokens, and is
// created automatically when the authorization flow completes for the first
// time.
const TOKEN_PATH = 'token.json';

// Load client secrets from a local file.
fs.readFile('credentials.json', (err, content) => {
  if (err) return console.log('Error loading client secret file:', err);
  // Authorize a client with credentials, then call the Gmail API.
  authorize(JSON.parse(content), listLabels);
});

/**
 * Create an OAuth2 client with the given credentials, and then execute the
 * given callback function.
 * @param {Object} credentials The authorization client credentials.
 * @param {function} callback The callback to call with the authorized client.
 */
function authorize(credentials, callback) {
  const {client_secret, client_id, redirect_uris} = credentials.installed;
  const oAuth2Client = new google.auth.OAuth2(
      client_id, client_secret, redirect_uris[0]);

  // Check if we have previously stored a token.
  fs.readFile(TOKEN_PATH, (err, token) => {
    if (err) return getNewToken(oAuth2Client, callback);
    oAuth2Client.setCredentials(JSON.parse(token));
    callback(oAuth2Client);
  });
}

/**
 * Get and store new token after prompting for user authorization, and then
 * execute the given callback with the authorized OAuth2 client.
 * @param {google.auth.OAuth2} oAuth2Client The OAuth2 client to get token for.
 * @param {getEventsCallback} callback The callback for the authorized client.
 */
function getNewToken(oAuth2Client, callback) {
  const authUrl = oAuth2Client.generateAuthUrl({
    access_type: 'offline',
    scope: SCOPES,
  });
  console.log('Authorize this app by visiting this url:', authUrl);
  const rl = readline.createInterface({
    input: process.stdin,
    output: process.stdout,
  });
  rl.question('Enter the code from that page here: ', (code) => {
    rl.close();
    oAuth2Client.getToken(code, (err, token) => {
      if (err) return console.error('Error retrieving access token', err);
      oAuth2Client.setCredentials(token);
      // Store the token to disk for later program executions
      fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
        if (err) return console.error(err);
        console.log('Token stored to', TOKEN_PATH);
      });
      callback(oAuth2Client);
    });
  });
}

/**
 * Lists the labels in the user's account.
 *
 * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
 */
function listLabels(auth) {
  const gmail = google.gmail({version: 'v1', auth});
  gmail.users.labels.list({
    userId: 'me',
  }, (err, res) => {
    if (err) return console.log('The API returned an error: ' + err);
    const labels = res.data.labels;
    if (labels.length) {
      console.log('Labels:');
      labels.forEach((label) => {
        console.log(`- ${label.name}`);
      });
    } else {
      console.log('No labels found.');
    }
  });
}

unauthorized_client 通常意味着您正在请求一个范围，但您尚未在 Google 开发人员控制台中添加它。或者刷新令牌有问题。

如果您对授权有任何问题，请尝试删除 TOKEN_PATH 中的文件，这应该会导致授权 window 再次弹出，您可以再次尝试请求访问。

gmail API 无法工作，无法解构属性 'client_secret'

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gmail API 无法工作，无法解构 属性 'client_secret'

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gmail API 无法工作，无法解构属性 'client_secret'