🎉 Get the party started

index.js

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+const assert = require('assert')
+const Kraken = require('kraken-api')
+
+const {
+  KRAKEN_API_KEY: key,
+  KRAKEN_API_SECRET: secret,
+  KRAKEN_API_FIAT: fiat,
+  KRAKEN_BUY_AMOUNT: amount
+} = process.env
+
+assert(key && secret, 'Provide the KRAKEN_API_KEY and KRAKEN_API_SECRET environment variables.')
+assert(fiat && amount, 'Provide the KRAKEN_API_FIAT and KRAKEN_BUY_AMOUNT environment variables.')
+
+// https://www.kraken.com/features/api
+const kraken = new Kraken(key, secret)
+const crypto = 'XBT'
+const pair = `X${crypto}Z${fiat}`
+const validate = process.argv[2] === '--validate'
+
+;(async () => {
+  // Fetch and display information
+  const { result: { [`Z${fiat}`]: fiatBalance, [`X${crypto}`]: cryptoBalance } } = await kraken.api('Balance')
+  const { result: { [pair]: { a: [a], b: [b] } } } = await kraken.api('Ticker', { pair })
+
+  const ask = parseFloat(a)
+  const bid = parseFloat(b)
+  const price = bid
+
+  // Calculate volume and adjust precision
+  const volume = (amount / price).toFixed(8)
+
+  console.log('\n')
+  console.log('💰  Balance:', fiatBalance, fiat, '/', cryptoBalance, crypto, '\n')
+  console.log('📈  Ask:', ask, fiat)
+  console.log('📉  Bid:', bid, fiat, '\n')
+  console.log('🧾  Order:', volume, crypto, 'at', price, fiat, '\n')
+
+  // Place order
+  try {
+    const details = { pair, type: 'buy', ordertype: 'limit', price, volume, validate }
+    const { result: { descr: { order } }, txid } = await kraken.api('AddOrder', details)
+
+    console.log('💸  Placed order:', order, '/ TXID:', txid, '\n')
+  } catch (err) {
+    console.error(`🚨  Failure:`, err.message, '\n')
+  } finally {
+    if (validate) console.warn('🚨  THIS WAS JUST A VALIDATION RUN, NO ORDER HAS BEEN PLACED!', '\n')
+  }
+})()