This module generates xoauth string from oauth 1.0 token for Gmail IMAP login. The logic is taken from http://code.google.com/p/google-mail-xoauth-tools/source/browse/trunk/python/xoauth.py.
$ npm install gmail-xoauth
var ImapConnection = require('imap').ImapConnection,
XOauth = require('gmail-xoauth');
xoauth = new XOauth(<consumer key>, <consumer secret>);
var imapConfig = {
username: <email address>,
xoauth: xoauth.generateIMAPXOauthString(<email address>, <oauth token>, <oauth token secret>),
host: 'imap.gmail.com',
port: '993',
secure: true
}
var imap = new ImapConnection(this.imapConfig);