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