erik/cryptoprice
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Improved and cleaned up examples

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This commit is contained in:
Erik C. Thauvin 2022-09-08 11:53:24 -07:00
parent bef4b2ee20
commit cdba6b7597
3 changed files with 21 additions and 8 deletions
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16
examples/src/main/java/com/example/CryptoPriceSample.java
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@ -6,20 +6,22 @@ import org.json.JSONObject;
import java.io.IOException;
import java.util.Collections;
import java.util.Currency;
import java.util.List;
import java.util.Locale;
public class CryptoPriceSample {
public static void main(final String[] args) {
try {
if (args.length > 0) {
final CryptoPrice price;
final String currency;
if (args.length == 2) {
price = CryptoPrice.spotPrice(args[0], args[1]);
currency = args[1];
} else {
price = CryptoPrice.spotPrice(args[0]);
currency = Currency.getInstance(Locale.getDefault()).getCurrencyCode();
}
System.out.println("The current " + price.getBase() + " price is " + price.getAmount() + " in "
+ price.getCurrency());
final var price = CryptoPrice.spotPrice(args[0], currency);
System.out.println("The current " + price.getBase() + " price is " + price.toCurrency());
} else {
// Get current Bitcoin spot price.
final var price = CryptoPrice.spotPrice("BTC");
@ -42,11 +44,13 @@ public class CryptoPriceSample {
final var response = CryptoPrice.apiCall(List.of("exchange-rates"),
Collections.singletonMap("currency", "USD"));
final var rates = new JSONObject(response).getJSONObject("data").getJSONObject("rates");
System.out.printf("The USD-EUR exchange rate is: %s%n", rates.getString("EUR"));
System.out.println("The USD-EUR exchange rate is: " + rates.getString("EUR"));
}
} catch (CryptoException e) {
System.err.println("HTTP Status Code: " + e.getStatusCode());
System.err.println(e.getMessage());
} catch (IllegalArgumentException e) {
System.err.println("Could not display the specified currency: " + args[1]);
} catch (IOException e) {
System.err.println(e.getMessage());
}