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Daniil Chashkov2019-11-16 18:24:01
JavaScript
Daniil Chashkov, 2019-11-16 18:24:01

How to solve OAuth2 issue with readline.question?

There is index.js (electron), in the same file the file with the code is connected (there is a connection to google):

The code
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/tasks.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 Google Tasks API.
  authorize(JSON.parse(content), listTaskLists);
});

/**
 * 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,
  });
############## HERE ###########################
  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);
    });
  });
####################################3
}

/**
 * Lists the user's first 10 task lists.
 *
 * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
 */
function listTaskLists(auth) {
  const service = google.tasks({version: 'v1', auth});
  service.tasklists.list({
    maxResults: 10,
  }, (err, res) => {
    if (err) return console.error('The API returned an error: ' + err);
    const taskLists = res.data.items;
    if (taskLists) {
      console.log('Task lists:');
      taskLists.forEach((taskList) => {
        console.log(`${taskList.title} (${taskList.id})`);
      });
    } else {
      console.log('No task lists found.');
    }
  });
}

After a while, messages for entering a token are displayed in the console, and then a problem arises. The code is not entered. As I understand it, all the code is executed immediately without an input prompt, without waiting for the user to enter data.
How can this problem be solved and why did it arise?
If I run the file separately, then everything works fine, as soon as the file code is executed from index.js, then nothing works.

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