public GeminiDepositAddressResponse requestDepositAddressRaw(String currency) throws IOException { try { String type = "unknown"; if (currency.equalsIgnoreCase("BTC")) { type = "bitcoin"; } else if (currency.equalsIgnoreCase("LTC")) { type = "litecoin"; } else if (currency.equalsIgnoreCase("ETH")) { type = "ethereum"; } GeminiDepositAddressResponse requestDepositAddressResponse = Gemini.requestDeposit( apiKey, payloadCreator, signatureCreator, new GeminiDepositAddressRequest( String.valueOf(exchange.getNonceFactory().createValue()), type, "exchange", 0)); if (requestDepositAddressResponse != null) { return requestDepositAddressResponse; } else { return null; } } catch (GeminiException e) { throw new ExchangeException(e); } }