var Iyzipay = require('iyzipay');
var apiKey = "sandbox-pZwBBHDkOYRHbvr4AMIgBDmCecc03QUU";
var secretKey = "sandbox-BLUEz48w9EHXQQBsIYWnT9aWgnqElbIm";
var iyzipay = new Iyzipay({
apiKey: apiKey,
secretKey: secretKey,
uri: 'https://sandbox-api.iyzipay.com'
});
iyzipay.binNumber.retrieve({
locale: Iyzipay.LOCALE.TR,
conversationId: '123456789',
binNumber: '554960'
}, function (err, result) {
console.log(result);
});