public Task <long> GetNextIdAsync(string url)
{
return(_Cache.GetOrCreateAsync(url, entry =>
{
entry.AbsoluteExpirationRelativeToNow = TimeSpan.FromHours(1);
return _RealGenerator.GetNextIdAsync(url);
}));
}
/// <inheritdoc />
public async Task <string> ShortenAsync(string originalLink)
{
if (string.IsNullOrWhiteSpace(originalLink))
{
throw new UrlIsMissingException($"Url is required");
}
if (!_UrlValidator.IsValid(originalLink))
{
throw new UrlIsInvalidException($"Url \'{originalLink}\' have incorrect format");
}
var id = await _LinksIdGenerator.GetNextIdAsync(originalLink);
return(ToBase62(id));
}