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  • index.js
  • credentials.json
  • images.json
  • package-lock.json
  • package.json
  • token.json
index.js
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const express = require('express');
const bodyParser = require('body-parser');
const os = require('os');
const app = express();
const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');
var cors = require('cors')

var array = new Array();

 
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(express.static('public'));

var router = express.Router();

//Allow for Cross-origin resource sharing
app.use(cors());

app.get('/', (req, res) => {
	res.json({"List": array});
}); 

app.use("/api",router);
router.route("/list",cors()).get(function(req,res) {
    res.json({"list": array});
});

//Code retrive from Google, https://developers.google.com/drive/
// If modifying these scopes, delete token.json.

const SCOPES = ['https://www.googleapis.com/auth/drive.metadata.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 Drive API.
  authorize(JSON.parse(content), listFiles);
});

/**
 * 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 getAccessToken(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 getAccessToken(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 names and IDs of up to 10 files.
 * @param {google.auth.OAuth2} auth An authorized OAuth2 client.**/
 function listFiles(auth) {
   console.log(os.networkInterfaces());
    const drive = google.drive({version: 'v3', auth});
    drive.files.list({
      pageSize: 30,
      q: "mimeType='image/jpeg'",
      mimeType: "jpg",
      fields: 'nextPageToken, files(id, name)',
    }, (err, res) => {
      if (err) return console.log('The API returned an error: ' + err);
      const files = res.data.files;
      if (files.length) {
        console.log('ID:\n-------------------------------');
        files.map((file) => {
          console.log(`${file.name} (${file.id})` + '\n');
          array.push(file.id);
        });
        array.forEach((img) => {
      console.log(img + " in list");
    });
      } else {
        console.log('No IDs found.');
      }
    });
    
}


app.listen(8080, () => console.log('server started'));