Backend-Api/0_Framework/Application/PaymentGateway/IPaymentGateway.cs

using Microsoft.AspNetCore.Server.HttpSys;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.Json.Serialization;
using System.Threading;
using System.Threading.Tasks;

namespace _0_Framework.Application.PaymentGateway;

public interface IPaymentGateway
{
    Task<PaymentGatewayResponse> Create(CreatePaymentGatewayRequest command, CancellationToken cancellationToken =default);

    string GetStartPayUrl(string transactionId);
    Task<PaymentGatewayResponse> Verify(VerifyPaymentGateWayRequest command, CancellationToken cancellationToken=default);
    Task<PaymentGatewayResponse> CreateSandBox(CreatePaymentGatewayRequest command, CancellationToken cancellationToken=default);
    string GetStartPaySandBoxUrl(string transactionId);
    Task<WalletAmountResponse> GetWalletAmount(CancellationToken cancellationToken);

}
public class PaymentGatewayResponse
{
    [JsonPropertyName("status")]
    public string Status { get; set; }  

    [JsonPropertyName("code")]
    public int? ErrorCode { get; set; }

    [JsonPropertyName("transid")]
	public string Token { get; set; }

    public bool IsSuccess { get; set; }

    public string Message { get; set; }
}

public class WalletAmountResponse
{
    [JsonPropertyName("status")]
    public string Status { get; set; }
    [JsonPropertyName("money")]
    public double Amount { get; set; }
    [JsonPropertyName("code")]
    public int Code { get; set; }
}

public class CreatePaymentGatewayRequest
{
    public double Amount { get; set; }
    public string CallBackUrl { get; set; }
    public string InvoiceId { get; set; }
    public string CardNumber { get; set; }
    public string Mobile { get; set; }
    public string Email { get; set; }
    public string Description { get; set; }
    public IDictionary<string, object> ExtraData { get; set; }
}

public class VerifyPaymentGateWayRequest
{
	public string DigitalReceipt { get; set; }
	public string TransactionId { get; set; }
    public double Amount { get; set; }
}