38 lines
912 B
JavaScript
38 lines
912 B
JavaScript
const mem = require('mem')
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const configManager = require('./config-manager')
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const ph = require('./plugin-helper')
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const logger = require('./logger')
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const lastRate = {}
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const FETCH_INTERVAL = 10000
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function getRates (settings, fiatCode, cryptoCode) {
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return Promise.resolve()
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.then(() => {
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const config = settings.config
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const plugin = configManager.cryptoScoped(cryptoCode, config).ticker
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const account = settings.accounts[plugin]
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const ticker = ph.load(ph.TICKER, plugin)
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const market = [cryptoCode, fiatCode].join('-')
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return ticker.ticker(account, fiatCode, cryptoCode)
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.then(r => ({
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rates: r.rates,
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timestamp: Date.now()
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}))
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.then(r => {
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lastRate[market] = r
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return r
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})
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.catch(err => {
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logger.error(err)
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return lastRate[market]
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})
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})
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}
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module.exports = {
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getRates: mem(getRates, {maxAge: FETCH_INTERVAL})
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}
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