Initial commit with translated description

scripts/get_coin_historical_chart.js

@@ -0,0 +1,36 @@
+#!/usr/bin/env node
+const apiClient = require('./api_client');
+
+async function getCoinHistoricalChart(coinId, vsCurrency = 'usd', days = '7', precision = null) {
+  const params = { vs_currency: vsCurrency, days, interval: 'daily' };
+  if (precision) params.precision = precision;
+
+  return apiClient.get(`/crypto/coins/${coinId}/market_chart`, params);
+}
+
+async function main() {
+  const args = process.argv.slice(2);
+  if (args.length === 0) {
+    console.log(JSON.stringify({
+      usage: 'node scripts/get_coin_historical_chart.js <coin_id> [--currency=usd] [--days=7] [--precision=2]',
+      example: 'node scripts/get_coin_historical_chart.js bitcoin --currency=usd --days=30',
+    }, null, 2));
+    process.exit(1);
+  }
+
+  const coinId = args[0];
+  let vsCurrency = 'usd';
+  let days = '7';
+  let precision = null;
+
+  for (const arg of args.slice(1)) {
+    if (arg.startsWith('--currency=')) vsCurrency = arg.split('=')[1];
+    else if (arg.startsWith('--days=')) days = arg.split('=')[1];
+    else if (arg.startsWith('--precision=')) precision = arg.split('=')[1];
+  }
+
+  const result = await getCoinHistoricalChart(coinId, vsCurrency, days, precision);
+  console.log(JSON.stringify(result, null, 2));
+}
+
+main();