Bittrex Orderbook

The BittrexOrderbook class pulls market summary and order book data for all market pairs from the Bittrex API. After pulling the data it then connects to the websockets for all market pairs to keep the order books and market summaries updated.

Prerequisite

Install node.bittrex.api package.

$ npm install node.bittrex.api

Installation

Copy bittrex-orderbook.js to your project folder.

Usage

Initiate connection

const BittrexOrderBook = require('./bittrex-orderbook.js');
const bitman = new BittrexOrderBook();

// Call connect function and provide callback for execution when connection is ready.
bitman.connect( function() {
    console.log("Connections established");
});

Market Summaries

Access the market summaries through the marketSummaries object property.

console.log(bitman.marketSummaries['BTC-ETH']);

Output:

marketSummary {
  MarketName: 'BTC-ETH',
  High: 0.112,
  Low: 0.10510007,
  Volume: 33797.98641469,
  Last: 0.1111,
  BaseVolume: 3652.83089315,
  TimeStamp: '2017-07-02T17:26:32.977',
  Bid: 0.11104828,
  Ask: 0.1111,
  OpenBuyOrders: 5616,
  OpenSellOrders: 9488,
  PrevDay: 0.10867183,
  Created: '2015-08-14T09:02:24.817',
  currencyA: 'BTC',
  currencyB: 'ETH' }

Order Books

Access the order books through the getOrderBooks object method. This method returns an object with buy and sell properties, each of which is an array of sorted orderListing objects for that side. The orderListing object has properties Quantity and Rate.

var btc_ethOrderBook = bitman.getOrderBook('BTC-ETH');
for (var x = 0; x < 5; x++){
  console.log(btc_ethOrderBook.buy[x]);
}

Output:

orderListing { Quantity: 1.17983221, Rate: 0.11185 }
orderListing { Quantity: 11.64072243, Rate: 0.1118 }
orderListing { Quantity: 0.12870903, Rate: 0.11173948 }
orderListing { Quantity: 7.152, Rate: 0.11166313 }
orderListing { Quantity: 0.91782434, Rate: 0.11166312 }

Contact

Email me with any questions at jpstratman@unomaha.edu