title: Confusion on Google Drive API, how can I download contents of folders? (node.js)
body: <p>Hi I am trying to take the data returned to me from using the google drive api quickstart for node, and download the contents of docx files directly to my repo. </p>
  
  <p>Here is my code so far, pretty much taken directly from this quickstart page, <a href="https://developers.google.com/drive/v3/web/quickstart/nodejs" rel="nofollow noreferrer">https://developers.google.com/drive/v3/web/quickstart/nodejs</a></p>
  
  <pre><code>var fs = require('fs');
  var readline = require('readline');
  var google = require('googleapis');
  var googleAuth = require('google-auth-library');
  
  // If modifying these scopes, delete your previously saved credentials
  // at ~/.credentials/drive-nodejs-quickstart.json
  var SCOPES = ['https://www.googleapis.com/auth/drive.metadata.readonly'];
  var TOKEN_DIR = (process.env.HOME || process.env.HOMEPATH ||
      process.env.USERPROFILE) + '/.credentials/';
  var TOKEN_PATH = TOKEN_DIR + 'drive-nodejs-quickstart.json';
  
  // Load client secrets from a local file.
  fs.readFile('client_secret.json', function processClientSecrets(err, content) {
    if (err) {
      console.log('Error loading client secret file: ' + err);
      return;
    }
    // Authorize a client with the loaded credentials, then call the
    // 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) {
    var clientSecret = credentials.installed.client_secret;
    var clientId = credentials.installed.client_id;
    var redirectUrl = credentials.installed.redirect_uris[0];
    var auth = new googleAuth();
    var oauth2Client = new auth.OAuth2(clientId, clientSecret, redirectUrl);
  
    // Check if we have previously stored a token.
    fs.readFile(TOKEN_PATH, function(err, token) {
      if (err) {
        getNewToken(oauth2Client, callback);
      } else {
        oauth2Client.credentials = 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 to call with the authorized
   *     client.
   */
  function getNewToken(oauth2Client, callback) {
    var authUrl = oauth2Client.generateAuthUrl({
      access_type: 'offline',
      scope: SCOPES
    });
    console.log('Authorize this app by visiting this url: ', authUrl);
    var rl = readline.createInterface({
      input: process.stdin,
      output: process.stdout
    });
    rl.question('Enter the code from that page here: ', function(code) {
      rl.close();
      oauth2Client.getToken(code, function(err, token) {
        if (err) {
          console.log('Error while trying to retrieve access token', err);
          return;
        }
        oauth2Client.credentials = token;
        storeToken(token);
        callback(oauth2Client);
      });
    });
  }
  
  /**
   * Store token to disk be used in later program executions.
   *
   * @param {Object} token The token to store to disk.
   */
  function storeToken(token) {
    try {
      fs.mkdirSync(TOKEN_DIR);
    } catch (err) {
      if (err.code != 'EEXIST') {
        throw err;
      }
    }
    fs.writeFile(TOKEN_PATH, JSON.stringify(token));
    console.log('Token stored to ' + TOKEN_PATH);
  }
  https://www.googleapis.com/drive/v3/files/fileId/text/plain
  /**
   * Lists the names and IDs of up to 10 files.
   *
   * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
   */
  function listFiles(auth) {
    var service = google.drive('v3');
    service.files.list({
      auth: auth,
      pageSize: 10,
      fields: "nextPageToken, files(id, name)"
    }, function(err, response) {
      if (err) {
        console.log('The API returned an error: ' + err);
        return;
      }
      var files = response.files;
      if (files.length == 0) {
        console.log('No files found.');
      } else {
        console.log('Files:');
        for (var i = 0; i &lt; files.length; i++) {
          var file = files[i];
          if(file.name.includes('doc')){
     ************  download file somehow ************
          }
        }
      }
    });
  }
  </code></pre>
  
  <p><code>From reading their documentation(https://developers.google.com/drive/v3/reference/  and https://developers.google.com/drive/v3/reference/files/export#http-request)</code>, it looks like I'm supposed to export the url with the id to whatever mimetype I need, but even in the browser this is giving me the error:
  "Not found"</p>
  
  <p>For instance it tells me to use this url:
  <a href="https://www.googleapis.com/drive/v3/files/" rel="nofollow noreferrer">https://www.googleapis.com/drive/v3/files/</a>//export</p>
  
  <p>given the id:
  "1QekrRHbSLu0mDZt64gTMyCOQlWgubufycK1-3249YQY"</p>
  
  <pre><code>https://www.googleapis.com/drive/v3/files/1QekrRHbSLu0mDZt64gTMyCOQlWgubufycK1-3249YQY/text/plain/export
  </code></pre>
  
  <p>The browser says "Not found"</p>
  
  <p>if I go to the same url without /text/plain/export <code>(https://www.googleapis.com/drive/v3/files/1QekrRHbSLu0mDZt64gTMyCOQlWgubufycK1-3249YQY/)</code> I get the error:</p>
  
  <pre><code>{
   "error": {
    "errors": [
     {
      "domain": "usageLimits",
      "reason": "dailyLimitExceededUnreg",
      "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup.",
      "extendedHelp": "https://code.google.com/apis/console"
     }
    ],
    "code": 403,
    "message": "Daily Limit for Unauthenticated Use Exceeded. Continued use requires signup."
   }
  }
  </code></pre>
  
  <p>can anyone tell me how to save my file?</p>