Google_App_Script取得資料夾中圖片url的API

///抓取某資料夾中圖片url的api
function doGet(e) {
  var data = '';
  var arry=[]

  var images = DriveApp.getFolderById("資料夾ID").getFilesByType(MimeType.JPEG);
  while(images.hasNext()){
  var img = images.next();
    // img.setSharing(DriveApp.Access.ANYONE, DriveApp.Permission.VIEW); this line can be dangerous!!
    var imgId = img.getId(); 
    var imgName = img.getName();
    var pubUrl = baseUrl+imgId; // the public URL
    Logger.log(pubUrl); 
    var obj= {"name":imgName,"img":pubUrl}
    arry.push(obj)
  }
  data = arry;
  return ContentService.createTextOutput(JSON.stringify(data))
    .setMimeType(ContentService.MimeType.JSON);
}

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