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48 lines (37 loc) · 1.54 KB
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package examples;
import io.github.ccxt.exchanges.Binance;
import io.github.ccxt.types.Currencies;
import io.github.ccxt.types.CurrencyInterface;
import java.util.Map;
/**
* Fetch and display available currencies from an exchange.
*
* Usage:
* cd java && ./gradlew :examples:run -PmainClass=examples.FetchCurrencies
*/
public class FetchCurrencies {
public static void main(String[] args) {
Binance exchange = new Binance();
exchange.loadMarkets(false);
Currencies currencies = exchange.fetchCurrencies((Map<String, Object>) null);
if (currencies.currencies.isEmpty()) {
System.out.println("No currencies returned (this exchange may require API keys for fetchCurrencies).");
return;
}
// Show some popular currencies
String[] popular = {"BTC", "ETH", "USDT", "SOL", "XRP", "DOGE", "ADA", "AVAX"};
System.out.printf("%-8s %-20s %-8s %-10s%n", "Code", "Name", "Active", "Fee");
System.out.println("-".repeat(50));
for (String code : popular) {
CurrencyInterface c = currencies.currencies.get(code);
if (c != null) {
System.out.printf("%-8s %-20s %-8s %-10s%n",
c.code,
c.name != null ? (c.name.length() > 18 ? c.name.substring(0, 18) + ".." : c.name) : "n/a",
c.active,
c.fee != null ? c.fee : "n/a");
}
}
System.out.println("\nTotal currencies: " + currencies.currencies.size());
}
}