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icepaynl
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‎Classes/Base.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes
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{
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public abstract class Base
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{
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public string Timestamp
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{
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get
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{
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return DateTime.Now.ToString("yyyy-MM-ddThh:mm:ss");
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}
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}
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/// <summary>
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/// In case of errors, this field will contain the error description.
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/// </summary>
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public string Message { get; set; }
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}
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}

‎Classes/Payment/AutomaticCheckout.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Payment
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{
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public class AutomaticCheckoutRequest : CheckoutRequest { }
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public class AutomaticCheckoutResponse : CheckoutResponse { }
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}

‎Classes/Payment/Checkout.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Payment
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{
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public class CheckoutRequest : Base
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{
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public int Amount { get; set; }
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public string Country { get; set; }
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public string Currency { get; set; }
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public string Description { get; set; }
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public string EndUserIP { get; set; }
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public string Issuer { get; set; }
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public string Language { get; set; }
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public string OrderID { get; set; }
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public string PaymentMethod { get; set; }
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public string Reference { get; set; }
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public string URLCompleted { get; set; }
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public string URLError { get; set; }
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}
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public class CheckoutResponse : Base
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{
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public int Amount { get; set; }
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public string Country { get; set; }
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public string Currency { get; set; }
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public string Description { get; set; }
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public string EndUserIP { get; set; }
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public string Issuer { get; set; }
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public string Language { get; set; }
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public string OrderID { get; set; }
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public int PaymentID { get; set; }
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public string PaymentMethod { get; set; }
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public string PaymentScreenURL { get; set; }
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public string ProviderTransactionID { get; set; }
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public string Reference { get; set; }
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public string TestMode { get; set; }
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public string URLCompleted { get; set; }
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public string URLError { get; set; }
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}
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}

‎Classes/Payment/GetMyPaymentMethods.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Payment
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{
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public class GetMyPaymentMethodsRequest : Base { }
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public class GetMyPaymentMethodsResponse : Base
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{
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public PaymentMethod[] PaymentMethods { get; set; }
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}
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public class PaymentMethod
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{
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public string PaymentMethodCode { get; set; }
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public string Description { get; set; }
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public Issuer[] Issuers { get; set; }
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}
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public class Issuer
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{
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public string IssuerKeyword { get; set; }
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public string Description { get; set; }
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public Country[] Countries { get; set; }
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}
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public class Country
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{
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public string CountryCode { get; set; }
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public string Currency { get; set; }
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public int MinimumAmount { get; set; }
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public int MaximumAmount { get; set; }
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}
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}

‎Classes/Payment/GetPayment.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Payment
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{
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public class GetPaymentRequest :Base
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{
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public int PaymentID { get; set; }
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}
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public class GetPaymentResponse : Base
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{
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public int PaymentID { get; set; }
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public int Amount { get; set; }
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public string Currency { get; set; }
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public string Description { get; set; }
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public string Duration { get; set; }
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public string ConsumerName { get; set; }
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public string ConsumerAccountNumber { get; set; }
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public string ConsumerAddress { get; set; }
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public string ConsumerHouseNumber { get; set; }
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public string ConsumerCity { get; set; }
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public string ConsumerCountry { get; set; }
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public string ConsumerEmail { get; set; }
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public string ConsumerPhoneNumber { get; set; }
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public string ConsumerIPAddress { get; set; }
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public string Issuer { get; set; }
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public string OrderID { get; set; }
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public string OrderTime { get; set; }
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public string PaymentMethod { get; set; }
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public string PaymentTime { get; set; }
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public string Reference { get; set; }
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public string Status { get; set; }
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public string StatusCode { get; set; }
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public string TestMode { get; set; }
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}
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}

‎Classes/Payment/VaultCheckout.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Payment
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{
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public class VaultCheckoutRequest:CheckoutRequest
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{
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public string ConsumerID { get; set; }
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}
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public class VaultCheckoutResponse : CheckoutResponse { }
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}

‎Classes/Refund/CancelRefund.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Refund
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{
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public class CancelRefundRequest : Base
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{
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public int RefundID { get; set; }
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public int PaymentID { get; set; }
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}
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public class CancelRefundResponse : Base { }
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}

‎Classes/Refund/GetPaymentRefunds.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Refund
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{
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public class GetPaymentRefundsRequest : Base
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{
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public int PaymentID { get; set; }
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}
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public class GetPaymentRefundsResponse : Base
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{
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public Refund[] Refunds { get; set; }
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}
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public class Refund
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{
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public int RefundID { get; set; }
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public int RefundAmount { get; set; }
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public string RefundCurrency { get; set; }
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public string DateCreated { get; set; }
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public string Status { get; set; }
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}
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}

‎Classes/Refund/RequestRefund.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace IcepayRestClient.Classes.Refund
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{
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public class RequestRefundRequest : Base
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{
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public int PaymentID { get; set; }
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public int RefundAmount { get; set; }
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public string RefundCurrency { get; set; }
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}
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public class RequestRefundResponse : Base
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{
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public int RefundID { get; set; }
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public int PaymentID { get; set; }
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public int RefundAmount { get; set; }
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public int RemainingRefundAmount { get; set; }
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public string RefundCurrency { get; set; }
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}
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}

‎Classes/RestClient.cs‎

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using Newtonsoft.Json;
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using System;
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using System.IO;
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using System.Net;
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using System.Security.Cryptography;
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using System.Text;
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namespace IcepayRestClient.Classes
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{
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public class RestClient
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{
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protected const string BaseUrl = "https://connect.icepay.com/webservice/api/v1/";
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public static TResponse SendAndReceive<TRequest, TResponse>(string service, string operation, TRequest request, int merchantID, string merchantSecret)
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where TRequest : Base, new()
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where TResponse : Base, new()
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{
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//make full URL
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var url = BaseUrl + service + "/" + operation;
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//serialize JSON without any whitespace
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var jsonSerializerSettings = new JsonSerializerSettings { Formatting = Newtonsoft.Json.Formatting.None, NullValueHandling = NullValueHandling.Ignore, Culture = System.Globalization.CultureInfo.InvariantCulture };
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var rawJson = JsonConvert.SerializeObject(request, Formatting.None, jsonSerializerSettings);
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//calculate checksum
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var signString = url + "POST" + merchantID.ToString() + merchantSecret + rawJson;
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var checksum = Sha256(signString);
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//initiate request
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var webrequest = HttpWebRequest.CreateHttp(url);
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webrequest.Method = "POST";
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webrequest.ContentType = "application/json";
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//add merchant ID and checksum to headers
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webrequest.Headers.Add("MerchantID", merchantID.ToString());
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webrequest.Headers.Add("Checksum", checksum);
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//send request
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var requestStream = webrequest.GetRequestStream();
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var writer = new StreamWriter(requestStream);
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writer.Write(rawJson);
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writer.Flush();
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//receive response
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TResponse response = null;
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string rawResponse = string.Empty;
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WebResponse webresponse = null;
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try
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{
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webresponse = webrequest.GetResponse();
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}
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catch (WebException ex)
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{
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webresponse = ex.Response;
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}
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var responseStream = webresponse.GetResponseStream();
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var reader = new StreamReader(responseStream);
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rawResponse = reader.ReadToEnd();
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response = JsonConvert.DeserializeObject<TResponse>(rawResponse);
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//verify response checksum
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if (!string.IsNullOrWhiteSpace(webresponse.Headers["Checksum"]))
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{
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var responseChecksum = webresponse.Headers["Checksum"];
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var responseSignString = webresponse.ResponseUri.AbsoluteUri + "POST" + merchantID.ToString() + merchantSecret + rawResponse;
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var responseVerificationChecksum = Sha256(responseSignString);
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if (!responseChecksum.Equals(responseVerificationChecksum, System.StringComparison.InvariantCultureIgnoreCase))
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{
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response = new TResponse { Message = "Response signature invalid." };
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}
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}
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//close streams
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writer.Dispose();
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reader.Dispose();
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webresponse.Dispose();
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return response;
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}
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protected static string Sha256(string signString)
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{
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byte[] hash;
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var sha2 = new SHA256Managed();
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hash = sha2.ComputeHash(System.Text.Encoding.UTF8.GetBytes(signString));
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StringBuilder sb = new StringBuilder(40);
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foreach (byte b in hash)
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{
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sb.AppendFormat("{0:x2}", b);
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}
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return sb.ToString();
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}
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}
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}

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