54 lines
1.2 KiB
JavaScript
54 lines
1.2 KiB
JavaScript
const Kraken = require('kraken-api')
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const coinmath = require('../common/kraken')
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var PAIRS = {
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BTC: {
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USD: 'XXBTZUSD',
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EUR: 'XXBTZEUR'
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},
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ETH: {
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USD: 'XETHZUSD',
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EUR: 'XETHZEUR'
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}
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}
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module.exports = {buy, sell}
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function buy (account, cryptoAtoms, fiatCode, cryptoCode) {
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return trade(account, 'buy', cryptoAtoms, fiatCode, cryptoCode)
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}
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function sell (account, cryptoAtoms, fiatCode, cryptoCode) {
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return trade(account, 'sell', cryptoAtoms, fiatCode, cryptoCode)
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}
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function trade (account, type, cryptoAtoms, fiatCode, cryptoCode) {
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const kraken = new Kraken(account.key, account.secret)
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const amount = coinmath.toUnit(cryptoAtoms, cryptoCode)
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if (amount.lte('0.01')) {
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const err = new Error('Order size too small')
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err.name = 'orderTooSmall'
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return Promise.reject(err)
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}
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const amountStr = amount.toFixed(6)
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const pair = PAIRS[cryptoCode][fiatCode]
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var orderInfo = {
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pair: pair,
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type: type,
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ordertype: 'market',
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volume: amountStr,
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expiretm: '+60'
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}
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kraken.api('AddOrder', orderInfo, function (error, response) {
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if (error) {
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// TODO: handle: EOrder:Order minimum not met (volume too low)
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return Promise.reject(error)
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} else {
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return Promise.resolve()
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}
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})
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}
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