gapi-test.js

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'];

authorize('gapi-token.json', 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) {
  const auth = new google.auth.GoogleAuth({
		keyFile: 'gapi-token.json',
		scopes: SCOPES,
	});
	google.options({auth: auth});
	listTiers(auth)
}

/**
 * Prints the names and majors of students in a sample spreadsheet:
 * @see https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
 * @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: '1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms',
    range: 'Class Data!A2:E',
  }, (err, res) => {
    if (err) return console.log('The API returned an error: ' + err);
    const rows = res.data.values;
    if (rows.length) {
      console.log('Name, Major:');
      // Print columns A and E, which correspond to indices 0 and 4.
      rows.map((row) => {
        console.log(`${row[0]}, ${row[4]}`);
      });
    } else {
      console.log('No data found.');
    }
  });
}

/**
 * Prints the names and majors of students in a sample spreadsheet:
 * @see https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
 * @param {google.auth.OAuth2} auth The authenticated Google OAuth client.
 */
 function listTiers(auth) {
  const sheets = google.sheets({version: 'v4'});
  sheets.spreadsheets.values.get({
    spreadsheetId: '1ps4XIdwJGIEhmiSOQ-4US781NZlBlMZIr8WEAfR9KK4',
    range: 'Sheet1!A2:B',
  }, (err, res) => {
    if (err) return console.log('The API returned an error: ' + err);
    const rows = res.data.values;
    if (rows.length) {
      console.log('DiscordID, Tier:');
      // Print columns A and E, which correspond to indices 0 and 4.
      rows.map((row) => {
        console.log(`${row[0]}, ${row[1]}`);
      });
    } else {
      console.log('No data found.');
    }
  });
}