config.js

var Config = function() {

  // General
	this.listen_port = 3000;
	
	// Twilio
	this.twilio_sid = "";
	this.twilio_token = "";
	this.twilio_outgoing = "";

};

Config.prototype.toTitleCase = function (string)
{
    return string.replace(/\w\S*/g, function(txt){return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();});
}

module.exports = function() {
	return new Config();
};	

index.js

var http = require('http');
var qs = require('querystring');
var RestClient = require('twilio').RestClient;
var phlPollFinder = require('phl-poll-finder')();
var config = require('./config')();

// Create HTTP server to process inbound requests from Twilio
var server = http.createServer(function inboundSMSServer(req, res) {

  // Variable to hold JSON payload.
	var payload = '';

	// Get payload from Twilio.
	req.addListener('data', function getPayload(data) {
		payload += data;
	});

	// Process inbound message.
	req.addListener('end', function processPayload() {
		
		var message = qs.parse(payload);
		var from = message.From;
		var address = message.Body;

		phlPollFinder.find(address, function (result) {

			// Prepare response.
			var response = "You vote at: ";
			response += config.toTitleCase(result[0].attributes.POLLING_PL) + ", " + config.toTitleCase(result[0].attributes.ADDRESS);
			console.log(from + ": " + response);

			// Send response SMS message.
			var sms = new RestClient(config.twilio_sid, config.twilio_token);
			sms.sendSms(config.twilio_outgoing, from, response, function sendSMS() {
				res.writeHead(200);
        		res.end();
			});
  
		});

	});

}).listen(3000);

package.json

{
  "name": "philly-finder",
	"version": "0.0.1",
	"description": "SMS-based polling locator for Philly",
	"main": "index.js",
	"dependencies": {
		"phl-poll-finder": "*",
		"twilio": "*"
	}
}