telegram-bot/modules/ContentStore/API/KittiesApi.cs

using System.Text;
using West.TelegramBot.ContentStore.Model;

namespace West.TelegramBot.ContentStore.API;

public class KittiesApi : IKittiesApi
{
    private readonly HttpClient _client;

    public KittiesApi(HttpClient client)
    {
        _client = client;
    }

    public async Task<KittiesResponse> GetKittiesImageAsync(string type)
    {
        var httpResponse = await _client.GetAsync($"v1/{type}");
        var headers = httpResponse.Headers;
        var titleBytes =
            Convert.FromBase64String(headers.GetValues("X-Video-Title").First());

        return new KittiesResponse(
            await httpResponse.Content.ReadAsStreamAsync(),
            headers.GetValues("X-Video-Source").First(),
            Encoding.UTF8.GetString(titleBytes)
        );
    }
}