Я занимаюсь извлечением данных из электронной таблицы Google Sheets и выводом их на консоль с помощью rows.map. Я хочу использовать эти данные, которые печатаются на консоли, для манипуляции и отображения на странице HTML.
Я думал о том, чтобы сохранить все значения, выводимые на консоль, в глобальную переменную, чтобы я мог вызвать эту глобальную переменную на странице HTML. Просто не могу найти решение. Любая помощь?
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/spreadsheets.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 Sheets API.
authorize(JSON.parse(content), listMajors);
});
/**
* 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 while trying to retrieve 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);
});
});
}
/**
* @param {google.auth.OAuth2} auth The authenticated Google OAuth client.
*/
function listMajors(auth) {
const sheets = google.sheets({
version: 'v4',
auth
});
sheets.spreadsheets.values.get({
spreadsheetId: '1O9FT3-p_knsbm8SIBznkDGHuL3LdfPaDnDJelqyBsqA',
range: 'Price Alerts',
}, (err, res) => {
if (err) return console.log('The API returned an error: ' + err);
const rows = res.data.values;
if (rows.length) {
// Print columns A and E, which correspond to indices 0 and 4.
rows.map((row) => {
console.log(`${row[0]}, ${row[1]}, ${row[2]}`);
});
} else {
console.log('No data found.');
}
});
}