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Francois Klieber committed
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var BTCMarkets = require('btc-markets');
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var _ = require('lodash');
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var moment = require('moment');
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var log = require('../core/log');
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var Trader = function(config) {
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_.bindAll(this);
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if(_.isObject(config)) {
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this.key = config.key;
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this.secret = config.secret;
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this.clientID = config.username;
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this.currency = config.currency;
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this.asset = config.asset;
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}
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this.name = 'BTC Markets';
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this.priceDivider = 100000000; // one hundred million
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this.btcmakets = new BTCMarkets(this.key, this.secret);
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}
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// if the exchange errors we try the same call again after
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// waiting 10 seconds
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Trader.prototype.retry = function(method, args) {
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var wait = +moment.duration(10, 'seconds');
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log.debug(this.name, 'returned an error, retrying..');
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var self = this;
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// make sure the callback (and any other fn)
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// is bound to Trader
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_.each(args, function(arg, i) {
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if(_.isFunction(arg))
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args[i] = _.bind(arg, self);
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});
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// run the failed method again with the same
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// arguments after wait
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setTimeout(
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function() { method.apply(self, args) },
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wait
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);
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}
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Trader.prototype.getPortfolio = function(callback) {
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var set = function(err, data) {
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if(!_.isEmpty(data.errorMessage))
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return callback('BTC-MARKET API ERROR: ' + data.errorMessage);
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var portfolio = _.map(data, function(balance) {
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return {
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name: balance.currency,
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amount: balance.balance / this.priceDivider
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}
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}, this);
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callback(err, portfolio);
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}.bind(this);
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this.btcmakets.getAccountBalances(set);
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}
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Trader.prototype.getTicker = function(callback) {
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var args = _.toArray(arguments);
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var set = function(err, result) {
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if(err)
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return this.retry(this.getTicker, args);
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callback(null, {
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bid: result.bestBid,
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ask: result.bestAsk
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});
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}.bind(this);
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this.btcmakets.getTick(this.asset, this.currency, set);
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}
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Trader.prototype.getFee = function(callback) {
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var args = _.toArray(arguments);
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var set = function(err, data) {
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if(!err && _.isEmpty(data))
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err = 'no data';
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else if(!err && !_.isEmpty(data.errorMessage))
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err = data.errorMessage;
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if(err){
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log.error('unable to retrieve fee', err, ' retrying...');
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return this.retry(this.getFee, args);
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}
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data.tradingFeeRate /= this.priceDivider;
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callback(false, data.tradingFeeRate);
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}.bind(this);
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this.btcmakets.getTradingFee(this.asset, this.currency, set);
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}
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Trader.prototype.buy = function(amount, price, callback) {
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price *= this.priceDivider;
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amount = Math.floor(amount * this.priceDivider);
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var id = Math.random() + '';
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var set = function(err, data) {
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if(!err && _.isEmpty(data))
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err = 'no data';
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else if(!err && !_.isEmpty(data.errorMessage))
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err = data.errorMessage;
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if(err)
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return log.error('unable to buy', err);
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callback(null, data.id);
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}.bind(this);
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this.btcmakets.createOrder(
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this.asset,
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this.currency,
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price,
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amount,
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'Bid',
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'Limit',
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id,
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set
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);
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}
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Trader.prototype.sell = function(amount, price, callback) {
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price *= this.priceDivider;
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amount = Math.floor(amount * this.priceDivider);
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var id = Math.random() + ''
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var set = function(err, data) {
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if(!err && _.isEmpty(data))
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err = 'no data';
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else if(!err && !_.isEmpty(data.errorMessage))
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err = data.errorMessage;
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if(err)
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return log.error('unable to sell', err)
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callback(null, data.id);
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}.bind(this);
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this.btcmakets.createOrder(
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this.asset,
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this.currency,
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price,
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amount,
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'Ask',
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'Limit',
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id,
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set
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);
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}
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Trader.prototype.checkOrder = function(order, callback) {
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var args = _.toArray(arguments);
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if (order == null) {
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return callback(null, true);
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}
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var check = function(err, data) {
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if(!err && _.isEmpty(data.orders))
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err = 'no data';
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else if(!err && !_.isEmpty(data.errorMessage))
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err = data.errorMessage;
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if(err){
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return log.error('unable to check order: ', order, '(', err ,'), retrying...');
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this.retry(this.checkOrder, args);
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}
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var placed = !_.isEmpty(data.orders)
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callback(err, !placed);
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}.bind(this);
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this.btcmakets.getOpenOrders(this.asset, this.currency, 10, null, check);
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}
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Trader.prototype.getOrder = function(order, callback) {
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var args = _.toArray(arguments);
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var get = function(err, data) {
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if(!err && _.isEmpty(data.orders))
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err = 'no data';
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else if(!err && !_.isEmpty(data.errorMessage))
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err = data.errorMessage;
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if(err){
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return log.error('unable to get order detail: ', order, '(', err ,'), retrying...');
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this.retry(this.getOrder, args);
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}
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var price = parseFloat(data.orders[0].price);
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var amount = parseFloat(data.orders[0].volumn);
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var date = moment.unix(data.orders[0].creationDate);
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callback(undefined, {price, amount, date});
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}.bind(this);
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this.btcmakets.getOrderDetail([order], callback);
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}
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Trader.prototype.cancelOrder = function(order, callback) {
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var args = _.toArray(arguments);
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var get = function(err, data) {
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if(!err && _.isEmpty(data))
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err = 'no data';
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else if(!err && !_.isEmpty(data.errorMessage))
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err = data.errorMessage;
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if(err){
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return log.error('unable to cancel order: ',order, '(', err, '), retrying...');
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this.retry(this.cancelOrder, args);
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}
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callback();
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};
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this.btcmakets.cancelOrders([order], callback);
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}
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Trader.prototype.getTrades = function(since, callback, descending) {
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var args = _.toArray(arguments);
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var process = function(err, result) {
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if(err)
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return this.retry(this.getTrades, args);
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callback(null, result.reverse());
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}.bind(this);
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// supports `since` based on trade ID, Gekko can't work this atm..
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this.btcmakets.getTrades(this.asset, this.currency, process);
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}
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Trader.getCapabilities = function () {
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return {
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name: 'BTC Markets',
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slug: 'btc-markets',
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currencies: ['AUD', 'BTC'],
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assets: [
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'BTC', 'LTC', 'ETH', 'ETC', 'BCH', 'XRP'
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],
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markets: [
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{ pair: ['AUD', 'BTC'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['AUD', 'LTC'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['AUD', 'ETH'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['AUD', 'ETC'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['AUD', 'BCH'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['AUD', 'XRP'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['BTC', 'LTC'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['BTC', 'ETH'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['BTC', 'ETC'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['BTC', 'BCH'], minimalOrder: { amount: 0.001, unit: 'asset' } },
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{ pair: ['BTC', 'XRP'], minimalOrder: { amount: 0.001, unit: 'asset' } }
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],
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requires: ['key', 'secret'],
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tid: 'tid',
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providesHistory: 'scan',
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providesFullHistory: false,
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tradable: true
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};
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}
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module.exports = Trader;
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