test.js

This is my code. 

var redis = require('redis');
client = redis.createClient()
var bittrex = require('node.bittrex.api');
var capbalance = "";
var capexchange = "";
var coin1 = 'DGB';

function rate(callback) {
  client.hget('Exchange_Rates', 'digibyte', function(err, exchange) {
	capexchange = exchange;
	callback(capexchange);
  });
};

function balance(callback) {
	bittrex.getbalance({ currency : coin1 }, function(data) {
	capbalance = data.result.Balance;
	callback(capbalance);
  });
};

function sell(exchange, balances) {
	bittrex.selllimit({market: 'BTC-' + coin1, quantity: balances, rate: exchange}, function(data) {
		console.log('Balance:', balances);
		console.log('Rate:', exchange);
		console.log(data);
	});
	client.quit();
	};

function execute() {
	rate(function() {
		balance(function() {
			sell(capexchange,capbalance);
		});
	});
};

execute();
This is what I get:

Balance: 1053.56220242
Rate: 0.00000038
{ success: false,
  message: 'DUST_TRADE_DISALLOWED_MIN_VALUE_50K_SAT',
  result: null }
  
  SUCCESS!