server.js

var Firebase = require('firebase'); 
var request = require('request');
var moment	= require('moment');
var later = require('later');
console.log('Worker started');

// create firebase ref
var markets = new Firebase('https://pubdata-dogecoin.firebaseio.com');

//Log in
markets.auth('wUgprcpKymshbE9g4Z1S13C0233QuDHoYHEwQjeo', function(error, result) {
    if(error) {
        console.log("Login Failed!", error);
    } else {
        console.log('Authenticated successfully with payload:');
        console.log('Auth expires at:', new Date(result.expires * 1000));
    }
});


// will fire every 5 minutes
var bter_schedule = later.parse.text('every 10 s');


// execute logTime for each successive occurrence of the text schedule
var timer_bter = later.setInterval(function(){update_bter(markets)}, bter_schedule);


function update_bter(markets){
	var now = moment.utc().format();
	console.log('Update bter: '+now);
	
	var b1,b2,b3; 

	// get bter market firebase location 
	var bter = markets.child('bter');

	// get bter doge value
	request('http://data.bter.com/api/1/ticker/doge_btc', function (error, response, body) {
	  if (!error && response.statusCode == 200) {

			var bter = JSON.parse(response.body); 
			var bterDOGE = bter['last'];
			var bterAVG = bter['avg'];
			console.log('DOGE value on bter: '+bterDOGE); // Print the google web page.
			bter.child('last').set(bterDOGE, function(error) {
			  if (error) {
				console.log('Data could not be saved.' + error);
			  } else {
				console.log('Last saved successfully.');
			  }
			  b1 = true; 
			  if(b1 && b2 && b3){ console.log('All values updated'); };
			});
			bter.child('avg').set(bterAVG, function(error) {
			  if (error) {
				console.log('Data could not be saved.' + error);
			  } else {
				console.log('Avg saved successfully.');
			  }
			  b2 = true; 
			  if(b1 && b2 && b3){ console.log('done') };
			});
                        bter.child('lastupdate').set(now, function(error) {
			  if (error) {
				console.log('Data could not be saved.' + error);
			  } else {
				console.log('Data saved successfully.');
			  }
			  b3 = true; 
			  if(b1 && b2 && b3){ 
			//process.exit() 
				console.log('All values updated');
			  };
			});
	  }
	});
}