49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
const axios = require('axios')
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const _ = require('lodash/fp')
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const BN = require('../../../bn')
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const common = require('../../common/bitstamp')
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exports.NAME = 'Bitstamp'
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exports.SUPPORTED_MODULES = ['ticker']
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function findCurrency (fxRates, fiatCode) {
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const rates = _.find(_.matchesProperty('code', fiatCode), fxRates)
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if (!rates || !rates.rate) throw new Error(`Unsupported currency: ${fiatCode}`)
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return BN(rates.rate.toString())
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}
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exports.ticker = function ticker (account, fiatCode, cryptoCode) {
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if (fiatCode === 'USD' || fiatCode === 'EUR') {
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return getCurrencyRates(fiatCode, cryptoCode)
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}
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return axios.get('https://bitpay.com/api/rates')
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.then(response => {
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const fxRates = response.data
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const usdRate = findCurrency(fxRates, 'USD')
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const fxRate = findCurrency(fxRates, fiatCode).div(usdRate)
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return getCurrencyRates('USD', cryptoCode)
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.then(res => ({
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rates: {
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ask: res.rates.ask.times(fxRate),
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bid: res.rates.bid.times(fxRate)
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}
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}))
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})
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}
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function getCurrencyRates (fiatCode, cryptoCode) {
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return Promise.resolve()
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.then(() => {
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const market = common.buildMarket(fiatCode, cryptoCode)
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return common.request('/ticker/' + market, 'GET')
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})
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.then(r => ({
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rates: {
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ask: BN(r.ask),
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bid: BN(r.bid)
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}
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}))
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}
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