Google Apps Script ➡️ Utils. Get files from the 📂folder

The code here is the part of “Utils” project on GitHub.

The code:

/**
 * @typedef {Object} FileInfo
 * @property {String} id
 * @property {String} name
 * @property {String} mime_type
 * @property {Integer} size
 * 
 */

/**
 * @param {String} folderId
 * 
 * @returns {Array<FileInfo>} files
 */
function getFolderFiles_(folderId) {
  var folder = DriveApp.getFolderById(folderId);
  var files = folder.getFiles();
  var file, result = [];
  /** @type  FileInfo*/
  var info;
  while (files.hasNext()) {
    file = files.next();
    info = {
      id: file.getId(),
      name: file.getName(),
      mime_type: file.getMimeType(),
      size: file.getSize()
    }
    result.push(info);
  }
  return result;
}

Test:

function test_getFolderFiles() {
  var folderId = "1cGHfhOJzI4QUeY47ktYy6sRdMA0ODYOX";
  var res = getFolderFiles_(folderId);
  console.log(res);
}

Results:

[ { id: '1ioyLMh-yzNrk8HVo6T1FG_GYqtQaE6qkTkdny1r9mSE',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1WU1ICn-o0BloQ8uOL7RvSTGNIiSTFJGEZKjvjzRva9M',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1U2NYukVwTli-apClSu2cNPINxPNAsFwRQoCaiMLbYHY',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1bYj-_6bv-spvqg3UjXLrOV-jvwTJ_F4SyleQKwLgURU',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1f3IIHt3S75x2U5Mph-8vOHd3JLXVdrYD0UftYdbxEgw',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1nZlX5WB3dPV-Wj_-SvoHkJqNZK--KAp-5D1aH5r0x8g',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1C-S39DnQOo6YY5Wy7H7KbiFcbFCcNrIpCmfoxQkEsOQ',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1c9xPESVYBQwL76pv4BSBfm-kAZiOo1yviyC9-5kbnJE',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1THP0S6-bXu2EIK-HWY7MT-8KJTyYH7Yy5d3W0mSbCBU',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1IB8FzczQxdZAQDViTE6RzTVSUt2gDnFCybH67dDAQOQ',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1ou_5zX0gfFBkrVJDs_ITJGttWiRUUm8JWSFn0uelvo0',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1fRDamMANmAbUF1FX3jU6-VWren9kbjZxzdH4lD_-4JQ',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1FVDQm-Thjhak_mPs-l3BSrZ7-Zj-3FCmZjCefR72iGM',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36308 },
  { id: '1hBBSMoJDL5vyIRd3cDpgHKn_7UTkvb_mzWFaJ91QlLY',
    name: 'Dummy Data. Generated by Formulas',
    mime_type: 'application/vnd.google-apps.spreadsheet',
    size: 36028 } ]

Photo by Garmin B on Unsplash