See https://ithoughthecamewithyou.com/post/capture-dropcam-frames-to-google-drive

DownloadFrame.gs

function downloadFrame() {
  var timestamp = Date.now().toString();
  
  var url = 'https://nexusapi.dropcam.com/get_image?uuid=12345&height=1280&cb=' + timestamp;
  var response = UrlFetchApp.fetch(url);
  var blob = response.getBlob();
  blob.setName(timestamp + '.jpg');
  
  var folders = DriveApp.getFoldersByName('DCFrames');
  while (folders.hasNext()) {
    var folder = folders.next();
    folder.createFile(blob);
    break;
  }
}