public async Task <UrlDto> AddUrl(UrlCreate url)
{
// Add the new url to the database
if (url == null || url.ActualUrl == null || url.ActualUrl.Trim() == string.Empty)
{
throw new Exception("Invalid url");
}
// Now generate the short url.
string shortenedUrl = string.Empty;
while (shortenedUrl == string.Empty)
{
var shortenedValue = Shortener.CreateShortCode();
var existing = _context.Urls.Where(u => u.ShortenedUrl == shortenedValue).FirstOrDefault();
if (existing == null)
{
shortenedUrl = shortenedValue;
}
}
_context.Urls.Add(new Url
{
ActualUrl = url.ActualUrl,
FriendlyName = url.FriendlyName,
ShortenedUrl = shortenedUrl,
Created = DateTime.Now
});
await _context.SaveChangesAsync();
return(new UrlDto
{
ActualUrl = url.ActualUrl,
ShortenedUrl = shortenedUrl,
AccessCount = 0
});
}
