init commitHEADmaster

1 files changed, 54 insertions, 0 deletions

diff --git a/crypto.js b/crypto.js
new file mode 100644
index 0000000..0fac36b
--- /dev/null
+++ b/crypto.js
@@ -0,0 +1,54 @@
+const https = require('https')
+const URL = 'https://www.binance.com/bapi/composite/v1/public/marketing/symbol/list'
+
+const roundSmall = (n) => {
+  const log10 = n ? Math.floor(Math.log10(n)) : 0, div = log10 < 0 ? Math.pow(10, 1 - log10) : 100;
+  return Math.round(n * div) / div;
+}
+
+const formatResponse = token => ({
+  'Rank': token.rank,
+  'Name': token.name,
+  'Full name': token.fullName,
+  'Price': '€'+(token.price<0.1?roundSmall(token.price):token.price.toFixed(2)),
+  'Last 24h': token.dayChange.toFixed(2)+'%',
+  'Market Cap': '€'+Math.round(token.marketCap),
+  'Circulating': token.totalSupply ? Math.round(token.circulatingSupply/token.totalSupply*100)+'%' : '-',
+  'Total': token.maxSupply ? Math.round(token.totalSupply/token.maxSupply*100)+'%' : '-'
+})
+
+const getResponse = (url) => https.get(url, res => {
+  let response = ''
+  res.on('data', data => { response += data })
+  res.on('end', () => { handleResponse(response) })
+  res.on('error', err => { console.error(err) })
+})
+
+const handleResponse = (response) => {
+  const list = JSON.parse(response)
+  const processed = list.data
+    .filter(token => token.rank && token.rank <= 40)
+    .map(formatResponse)
+
+  render(processed)
+}
+
+const render = (processed) => {
+  const paddings = Object.keys(processed[0]).map(key => {
+    const longest = processed.sort((a,b) => b[key].length - a[key].length)[0][key]
+    return longest.length > key.length ? longest.length : key.length
+  })
+  const header = '| '+Object.keys(processed[0]).map((el, i) => el.padStart(paddings[i])).join(' | ')+' |'
+  const line = '+'+Array(header.length-1).join('-')+'+'
+
+  console.log(line+'\n\x1b[1m'+header+'\x1b[0m\n'+line)
+  processed
+    .sort((a, b) => a.Rank - b.Rank)
+    .forEach(row => {
+      const color = `\x1b[${Number(row['Last 24h'].slice(0, -1))<0?31:32}m`
+      console.log('| '+color+Object.values(row).map((el, i) => el.toString().padStart(paddings[i])).join('\x1b[0m | '+color)+'\x1b[0m |')
+    })
+  console.log(line)
+}
+
+getResponse(URL)