telegram-bot/Core/Data/ChatOptionValue.cs

using Microsoft.EntityFrameworkCore;
using System.Text.Json.Serialization;
using System.Text.Json;
using System;

namespace Kruzya.TelegramBot.Core.Data;

[PrimaryKey(nameof(ChatId), nameof(OptionId))]
public class ChatOptionValue
{
    public long ChatId { get; set; }
    public string OptionId { get; set; }
    public byte[] Value { get; set; }


    public T GetValue<T>(T defVal = default)
    {
        try
        {
            return JsonSerializer.Deserialize<T>(new ReadOnlySpan<byte>(Value));
        }
        catch (Exception)
        {
            return defVal;
        }
    }

    public void SetValue<T>(T value)
    {
        Value = JsonSerializer.SerializeToUtf8Bytes(value, new JsonSerializerOptions
        {
            WriteIndented = false,
            DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingNull
        });
    }
}