Setting nforce org in express session

app.js

var nforce = require('nforce');

/**
 * Salesforce configuration.
 */

var org = nforce.createConnection({
  clientId: process.env.SFDC_CLIENT_ID,
  clientSecret: process.env.SFDC_CLIENT_SECRET,
  redirectUri: 'http://localhost:3000/oauth/_callback',
  environment: 'production',  // optional, salesforce 'sandbox' or 'production', production default
  mode: 'single' // optional, 'single' or 'multi' user mode, multi default
});

org.authenticate({ username: process.env.SFDC_USERNAME, password: process.env.SFDC_PASSWORD}, function(err, resp){
  // the oauth object was stored in the connection object
  if(err) console.error('✗ Could not connect to Saleforce org.');
  if (!err) console.log('sucessfully connected');
});

/**
 * Express configuration.
 */
 
 app.use(function(req, res, next) {
  res.locals.org = org;
  res.locals.user = req.user;
  res.locals.token = req.csrfToken();
  res.locals.secrets = secrets;
  next();
});

query.js

exports.show = function(req, res) {
  Group.findOne({'_id': req.params.id}, function(err, item) {
    res.locals.org.query({ query: item.query }, function(err, resp){
      if(!err && resp.records) {
        console.log(resp.records);
        res.render('groups/show', {
          title: 'Group details', record: item, records: resp.records
        });
      } 
    });
  });
};