parr_api/PARR.DAL/Extensions/GeneralExtesions.cs

using System.Text.Encodings.Web;
using System.Text.Json;
using System.Text.Unicode;

namespace PARR.DAL.Extensions
{
    public static class GeneralExtesions
    {
        /// <summary>
        /// Преобразует объект в Json, с учетом Cyrillic
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string? ToJson(this object value)
        {
            if (value == null)
                return null;

            try
            {
                return JsonSerializer.Serialize(value, new JsonSerializerOptions { Encoder = JavaScriptEncoder.Create(UnicodeRanges.All, UnicodeRanges.Cyrillic) });
            }
            catch// (Exception ex)
            {
                // todo: писать лог??? или и так пойдет
                return null;
            }
        }
        public static DateTimeOffset EndOfDay(this DateTimeOffset date)
        {
            return new DateTimeOffset(date.Year, date.Month, date.Day, 23, 59, 59, 999, new TimeSpan(0));
        }

        public static DateTimeOffset StartOfDay(this DateTimeOffset date)
        {
            return new DateTimeOffset(date.Year, date.Month, date.Day, 0, 0, 0, 0, new TimeSpan(0));
        }
    }
}