using System;

using System.Collections.Generic;

using System.Text.Json;

using AutoMapper;

​

public static class Program

{

    public static void Main()

    {

        var dailyCourses = new DailyCourses();

        dailyCourses.Items = new List<DailyCourse>()

        {

            new DailyCourse { Amount = "Test" }

        };

​

        var config = new MapperConfiguration(cfg =>

        {

            cfg.CreateMap<DailyCourse, DailyCourseSearch>();

            cfg.CreateMap<DailyCourses, DailyCoursesSearch>()

                .ForMember(a => a.Items, o => o.MapFrom(y => y.Items));

        });

​

        var mapper = new Mapper(config);

        var search = mapper.Map<DailyCoursesSearch>(dailyCourses);

        var json = JsonSerializer.Serialize(search);

        Console.WriteLine(json);

    }

}

​

public class DailyCourses

{

    public DateTimeOffset? CurseDate { get; set; }

​

    public IEnumerable<DailyCourse> Items { get; set; }

}

​

public class DailyCoursesSearch

{

    public DateTimeOffset? CurseDate { get; set; }

​

    public IEnumerable<DailyCourseSearch> Items { get; set; }

}

​

public class DailyCourseSearch

{

    public string CountryName { get; set; }

    public string CurrencyName { get; set; }

    public string Amount { get; set; }

​

    public string CountryCode { get; set; }

    public string Course { get; set; }

}

​

public class DailyCourse

{

    public string CountryName { get; set; }

    public string CurrencyName { get; set; } 

    public string Amount { get; set; }

​

    public string CountryCode { get; set; }

    public string Course { get; set; }

}