Object literal based design for chrome extension

background.js

var getAccess = {
  
  config : {
    client_id: '255350354640375',
    client_secret: '0206d7cd66962dd59d90472d810c3464',
    successURL: 'http://gotchacode.github.io'
  },

  init: function (config) {
    token = getAccess.getTempToken();
    getAccess.getPermToken(token);
  },

  getTempToken: function() { 
    var accessToken;
    if (!accessToken) {
      chrome.tabs.getAllInWindow(null, function (tabs) {
        _.each(tabs, function (tab) {
          if (tab.url.indexOf(getAccess.config.successURL) === 0) {
            var token = tab.url.split('#')[1].split('&')[0];
            return token;
          }
        });
        chrome.tabs.onUpdated.removeListener(getAccess.getTempToken);
        return;
      });
    }
  },

  getPermToken: function (token) {
    $.ajax({
      type: "POST",
      url: "https://graph.facebook.com/oauth/access_token",
      data: {
        grant_type: "fb_exchange_token",
        client_id: getAccess.config.client_id,
        client_secret: getAccess.config.client_secret,
        fb_exchange_token: token
      },
      success: function(url) {
        permToken = url.split("&")[0];
        if (permToken) {
          return permToken;
        }
      },
      error: function() {
        console.log('debug like a pro!');
      }
    });
   }
};


// Initialise the getAccess to get Access tokens from facebook
getAccess.init();