btcpayserver/BTCPayServer/Services/Rates/IRateProvider.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;

namespace BTCPayServer.Services.Rates
{
    public class Rate
    {
        public Rate()
        {

        }
        public Rate(string currency, decimal value)
        {
            Value = value;
            Currency = currency;
        }
        public string Currency
        {
            get; set;
        }
        public decimal Value
        {
            get; set;
        }
    }
    public interface IRateProvider
    {
        Task<decimal> GetRateAsync(string currency);
        Task<ICollection<Rate>> GetRatesAsync();
    }
}