How to index documents with elastic.js client?

index2es.js

var ejs = require('elastic.js'),
    nc  = require('elastic.js/elastic-node-client');

if (!(process.env.ES_HOST &&
      process.env.ES_PORT))
{
  console.error('FATAL: All of the required environment variables have not been configured');
  process.exit(1);
}

console.log(process.env.ES_HOST + ':' +process.env.ES_PORT);

/* setup client */
ejs.client = nc.NodeClient(process.env.ES_HOST, process.env.ES_PORT);

/* construct a Document object */
var doc = ejs.Document('dummy_index', 'dummy_type').source({'type':'blah', 'field1':'value1'});

/* a function to display results */
var resultsCallBack = function(results) {
  console.log(results);
};

/* index the document */
doc.doIndex(resultsCallBack);

setenv.sh

#!/bin/sh

# Q: How to run this file?
# A: Use ". setenv.sh" instead of "./setenv.sh"
# Q: Why?
# A: http://stackoverflow.com/questions/10781824/export-not-working-in-my-shell-script

export ES_HOST=blah.es.com
export ES_PORT=xxx
echo $ES_HOST $ES_PORT