47 lines
1.2 KiB
JavaScript
47 lines
1.2 KiB
JavaScript
const configManager = require('./config-manager')
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const settingsLoader = require('./settings-loader')
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function noExchangeError (cryptoCode) {
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const err = new Error('No exchange plugin defined for: ' + cryptoCode)
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err.name = 'NoExchangeError'
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return err
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}
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function lookupExchange (cryptoCode) {
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const settings = settingsLoader.settings()
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return configManager.cryptoScoped(cryptoCode, settings.config).exchange
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}
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function fetchExchange (cryptoCode) {
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return Promise.resolve()
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.then(() => {
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const settings = settingsLoader.settings()
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const plugin = lookupExchange(cryptoCode)
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if (!plugin) throw noExchangeError(cryptoCode)
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const account = settings.accounts[plugin]
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const exchange = require('lamassu-' + plugin)
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return {exchange, account}
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})
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}
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function buy (cryptoAtoms, fiatCode, cryptoCode) {
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return fetchExchange(cryptoCode)
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.then(r => r.exchange.buy(r.account, cryptoAtoms, fiatCode, cryptoCode))
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}
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function sell (cryptoAtoms, fiatCode, cryptoCode) {
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return fetchExchange(cryptoCode)
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.then(r => r.exchange.sell(r.account, cryptoAtoms, fiatCode, cryptoCode))
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}
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function active (fiatCode, cryptoCode) {
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return !!lookupExchange(cryptoCode)
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}
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module.exports = {
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buy,
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sell,
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active
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}
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