public async Task <IActionResult> SaveLink(string url)
{
string token = Shortener.GenerateToken();
List <Link> links = await _context.Links.ToListAsync();
foreach (var l in links)
{
if (l.Url == url)
{
return(Content("This link has already been created"));
}
if (l.Token == token)
{
token = Shortener.GenerateToken();
}
}
Link link = new Link()
{
Url = url, Token = token
};
_context.Links.Add(link);
_context.SaveChanges();
return(RedirectToAction("Links"));
}