public async Task <string> GetURLAsync(string shortUrl)
{
Guard.Against.NullOrEmpty(shortUrl, "Short URL");
Guard.Against.OutOfRange(shortUrl.Length, "Short URL", _config.ShortUrlLength, _config.ShortUrlLength);
URL res = null;
try {
ShortURL id = new ShortURL(AddBase64Strings(shortUrl));
res = await _urlRepository.GetByIdAsync(id);
if (res == null)
{
throw new URLNotFoundException(shortUrl);
}
return(res.Value);
}catch (Exception excp)
{
_logger.LogError(excp, $"Error fetching url with shortURL: {shortUrl}.");
res = null;
}
return(res?.Value);
}