public async Task <string> GetTelegramFile(string accessHash, string id, int version, int size, string type)
{
try
{
var buffer = await _telegramService.GetFileAsync(
long.Parse(accessHash), long.Parse(id), version, size);
string base64String = Convert.ToBase64String(buffer, 0, buffer.Length);
return("data:" + type + ";base64," + base64String);
}
catch { }
return(null);
}