Refund

$request = new \Iyzipay\Request\CreateRefundRequest();
$request->setLocale(\Iyzipay\Model\Locale::TR);
$request->setConversationId("123456789");
$request->setPaymentTransactionId("1");
$request->setPrice("0.5");
$request->setCurrency(\Iyzipay\Model\Currency::TL);
$request->setIp("85.34.78.112");

$refund = \Iyzipay\Model\Refund::create($request, Config::options());

CreateRefundRequest request = new CreateRefundRequest();
request.ConversationId = "123456789";
request.Locale = Locale.TR.ToString();
request.PaymentTransactionId = "1";
request.Price = "0.5";
request.Ip = "85.34.78.112";
request.Currency = Currency.TRY.ToString();

Refund refund = Refund.Create(request, options);

CreateRefundRequest request = new CreateRefundRequest();
request.setLocale(Locale.TR.getValue());
request.setConversationId("123456789");
request.setPaymentTransactionId("1");
request.setPrice(new BigDecimal("0.5"));
request.setCurrency(Currency.TRY.name());
request.setIp("85.34.78.112");

Refund refund = Refund.create(request, options);

iyzipay.refund.create({
    locale: Iyzipay.LOCALE.TR,
    conversationId: '123456789',
    paymentTransactionId: '1',
    price: '0.5',
    currency: Iyzipay.CURRENCY.TRY,
    ip: '85.34.78.112'
}, function (err, result) {
    console.log(err, result);
    done();
});

request = {
    locale: 'tr',
    conversationId: '123456789',
    paymentTransactionId: '702',
    price: '0.1',
    ip: '85.34.78.112',
    currency: Iyzipay::Model::Currency::TRY
}
refund = Iyzipay::Model::Refund.new.create(request, @options)

request = dict([('locale', 'tr')])
request['conversationId'] = '123456789'
request['paymentTransactionId'] = '1'
request['price'] = '0.1'
request['ip'] = '85.34.78.112'
request['currency'] = 'TRY'

refund = iyzipay.Refund()
refund_response = refund.create(request, options)

//Request
{
    "locale": "tr",
    "conversationId": "123456789",
    "paymentTransactionId": "36532",
    "price": "50.0",
    "ip": "85.34.78.112",
    "currency": "TRY"
}

//Response
{
    "status": "success",
    "locale": "tr",
    "systemTime": 1470730913791,
    "conversationId": "123456789",
    "paymentId": "25132",
    "paymentTransactionId": "36532",
    "price": 50,
    "currency": "TRY"
}