telegram-bot/modules/CustomChatAddOns/Service/InteropService.cs

using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http.Json;
using System.Text;
using System.Threading.Tasks;
using Telegram.Bot.Types;

namespace Kruzya.TelegramBot.CustomChatAddOns.Service
{
    public class InteropService
    {
        private readonly JsonSerializerSettings _serializerSettings;
        private readonly HttpClient _client;

        public InteropService(ISerializationBinder serializationBinder, HttpClient client)
        {
            _serializerSettings = new()
            {
                TypeNameHandling = TypeNameHandling.Objects,
                SerializationBinder = serializationBinder
            };

            _client = client;
        }

        public async Task<TOut> PostMessage<TIn, TOut>(string endpoint, TIn message)
        {
            var serializedMessage = JsonConvert.SerializeObject(message, _serializerSettings);
            var httpContent = new StringContent(serializedMessage, Encoding.UTF8, "application/json");

            var response = await (await _client.PostAsync(endpoint, httpContent))
                .EnsureSuccessStatusCode()
                .Content.ReadAsStringAsync();

            return JsonConvert.DeserializeObject<TOut>(response, _serializerSettings)!;
        }
    }
}