Google App Script - getCommenter - google-apps-script

Question

I'm brand new to Google Apps Script, and I'm trying to create a simple spreadsheet that will allow me to share files by user email through a single spreadsheet.
I have written the following script, which will allow me to add editors and viewers, but not commenters.
I keep getting an error that states that the function addCommenter cannot be found in object spreadsheet.
function shareSheet () {
var ss = SpreadsheetApp.getActiveSpreadsheet();
ss.toast('Updating access level...');
var sheet = ss.getSheets()[0];
var lastRow = sheet.getLastRow();
var range1 = sheet.getRange (3,1, lastRow,9);
var data = range1.getValues();
for (var i= 0; i < data.length; i++) {
var row = data [i];
var accessLevel = row [5];
var values = row [8];
var ss2 = SpreadsheetApp.openById(values);
var values2 = row [4];
// Add new editor
if (accessLevel == 'Edit') {
var addEditors = ss2.addEditor(values2);
}
// Add new viewer
if (accessLevel == 'View'){
var addViewers = ss2.addViewer(values2);
}
// Add new commenter
if (accessLevel == 'Comment') {
var addCommenters = ss2.addCommenter(values2);
}
}
}

Answer 1

The Spreadsheet object does not support the addCommentor() method. You should use DriveApp service instead.
DriveApp.getFileById(id).addCommenter(emailAddress)