57 lines
2.2 KiB
JavaScript
57 lines
2.2 KiB
JavaScript
module.exports = async (kraken, validate, { getEnv, getEnvOpt }) => {
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const [fiat, amount, feeCurrency] = getEnv('KRAKEN_API_FIAT', 'KRAKEN_BUY_AMOUNT', 'KRAKEN_FEE_CURRENCY')
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const ordertype = getEnvOpt('KRAKEN_ORDER_TYPE', 'limit', ['limit', 'market'])
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// if living in Germany, one needs to add an additional parameter to explicitly agree to the trade
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// if the parameter is not set one will get the following error: EOrder:Trading agreement required
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// see https://support.kraken.com/hc/en-us/articles/360000920026--Trading-agreement-required-error-for-German-residents
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const trading_agreement = getEnvOpt('KRAKEN_GERMANY_TRADING_AGREEMENT', '', ['agree', ''])
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// https://www.kraken.com/features/api
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const crypto = 'XBT'
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const pair = `${crypto}${fiat}`
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// for explanation of oflags see https://www.kraken.com/features/api#add-standard-order
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var fee = ""
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if (feeCurrency == crypto) {
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fee = "fcib"
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} else if (feeCurrency == fiat) {
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fee = "fciq"
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} else {
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fee = ""
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}
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// Fetch and display information
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const { result: balance } = await kraken.api('Balance')
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const { result: ticker } = await kraken.api('Ticker', { pair })
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const fiatBalance = balance[`Z${fiat}`] || balance[fiat] || 0.0
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const cryptoBalance = balance[`X${crypto}`] || balance[crypto] || 0.0
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const [{ a: [a], b: [b] }] = Object.values(ticker)
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const ask = parseFloat(a)
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const bid = parseFloat(b)
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const price = bid
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// Calculate volume and adjust precision
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const volume = (amount / price).toFixed(8)
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console.log('💰 Balance:', fiatBalance, fiat, '/', cryptoBalance, crypto, '\n')
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console.log('📈 Ask:', ask, fiat)
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console.log('📉 Bid:', bid, fiat, '\n')
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if (parseFloat(fiatBalance) < parseFloat(amount)) {
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console.log('❌ Insufficient funds')
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return
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}
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// Place order
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const details = { pair, type: 'buy', ordertype, price, volume }
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if (validate) details.validate = true
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if (trading_agreement) details.trading_agreement = trading_agreement
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if (fee) details.oflags = fee
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const { result: { descr: { order }, txid } } = await kraken.api('AddOrder', details)
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console.log('💸 Order:', order)
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if (txid) console.log('📎 Transaction ID:', txid.join(', '))
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}
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