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Francois Klieber committed
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// HERE FOR HISTORICAL PURPOSES
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var MtGoxClient = require("mtgox-apiv2");
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var _ = require('lodash');
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var moment = require('moment');
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var util = require('../core/util.js');
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var log = require('../core/log');
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var Trader = function(config) {
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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.currency = config.currency || 'USD';
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this.pair = 'BTC' + this.currency;
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}
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this.name = 'Mt. Gox';
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_.bindAll(this);
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this.mtgox = new MtGoxClient(this.key, this.secret, this.pair);
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}
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Trader.prototype.buy = function(amount, price, callback) {
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var process = function(err, result) {
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this.checkUnauthorized(err);
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// if Mt. Gox is down or lagging
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if(err || result.result === 'error')
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log.error('unable to buy (', err, result, ')');
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callback(null, result.data);
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};
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this.mtgox.add('bid', amount, price, _.bind(process, this));
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}
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Trader.prototype.sell = function(amount, price, callback) {
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var process = function(err, result) {
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this.checkUnauthorized(err);
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// if Mt. Gox is down or lagging
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if(err || result.result === 'error')
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log.error('unable to sell (', err, result, ')');
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callback(null, result.data);
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};
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this.mtgox.add('ask', amount, price, _.bind(process, this));
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}
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Trader.prototype.getTrades = function(since, callback, descending) {
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if(since && !_.isNumber(since))
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since = util.toMicro(since);
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var args = _.toArray(arguments);
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this.mtgox.fetchTrades(since, _.bind(function(err, trades) {
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if (err || !trades)
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return this.retry(this.getTrades, args);
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trades = trades.data;
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if (trades.length === 0)
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return this.retry(this.getTrades, args);
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if(descending)
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callback(false, trades.reverse());
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else
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callback(false, trades);
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}, this));
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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.checkUnauthorized = function(err) {
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if(err && err.message === 'Request failed with 403')
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util.die('It appears your ' + this.name + ' API key and secret are incorrect');
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}
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// calls callback with the following data structure:
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//
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// [
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// { name: 'BTC', amount: 10.12413123},
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// { name: 'USD', amount: 500.0241},
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// { name: 'EUR', amount: 0},
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// ]
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Trader.prototype.getPortfolio = function(callback) {
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var args = _.toArray(arguments);
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var calculate = function(err, result) {
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this.checkUnauthorized(err);
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if(err)
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return this.retry(this.getPortfolio, args);
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if(!('Wallets' in result.data))
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log.error('unable to get portfolio, do I have get_info rights?');
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var assets = [];
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_.each(result.data.Wallets, function(wallet, name) {
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var amount = parseFloat(wallet.Balance.value);
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assets.push({name: name, amount: amount});
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});
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callback(null, assets);
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};
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this.mtgox.info(_.bind(calculate, this));
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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 calculate = function(err, result) {
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this.checkUnauthorized(err);
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if(err)
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return this.retry(this.getFee, args);
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// convert the %
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var fee = result.data.Trade_Fee / 100;
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callback(null, fee);
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};
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this.mtgox.info(_.bind(calculate, this));
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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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// we can't just request the order id
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// @link https://bitbucket.org/nitrous/mtgox-api/#markdown-header-moneyorderresult
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var check = function(err, result) {
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if(err)
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return this.retry(this.checkOrder, args);
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var stillThere = _.find(result.data, function(o) { return o.oid === order });
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callback(null, !stillThere);
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};
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this.mtgox.orders(_.bind(check, this));
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}
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Trader.prototype.cancelOrder = function(order) {
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var cancel = function(err, result) {
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if(err || result.result !== 'succes')
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log.error('unable to cancel order', order, '(', err, result, ')');
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};
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this.mtgox.cancel(order, _.bind(cancel, this));
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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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var ticker = {
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bid: result.data.buy.value,
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ask: result.data.sell.value
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}
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callback(err, ticker);
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};
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this.mtgox.ticker(_.bind(set, this));
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}
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Trader.getCapabilities = function () {
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return {};
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// ---- Keeping this here for historical purposes. ----
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// {
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//
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// name: 'MtGox',
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// slug: 'mtgox',
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// direct: true,
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// infinityOrder: true,
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// currencies: [
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// 'USD', 'EUR', 'GBP', 'AUD', 'CAD', 'CHF', 'CNY',
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// 'DKK', 'HKD', 'PLN', 'RUB', 'SGD', 'THB'
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// ],
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// assets: ['BTC'],
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// markets: [
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// { pair: ['USD', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['EUR', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['GBP', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['AUD', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['CAD', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['CHF', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['CNY', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['DKK', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['HKD', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['PLN', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['RUB', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['SGD', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } },
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// { pair: ['THB', 'BTC'], minimalOrder: { amount: 0.01, unit: 'asset' } }
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// ],
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// requires: ['key', 'secret'],
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// providesHistory: false
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// }
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}
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module.exports = Trader;
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