//Action to redirect to
public ActionResult Go(string id = null)
{
//Get the db instance
var dbInstance = LinkDatabase.getInstance();
if (id != null)
{
int decoding = Shortener.GetLongDecoding(id);
try
{
string longUrl = dbInstance.getLongUrl(decoding.ToString());
//Ideally, with the above ID we will query the DB and get the respective url and redirect to that page
//Response.Redirect(longUrl);
return(new RedirectResult(longUrl));
}
catch (ArgumentException)
{
//If long url couldn't be found, redirect back to our homepage
return(RedirectToAction("LinkShortener", "Home"));
}
}
else
{
//Otherwise, redirect back to our homepage
return(RedirectToAction("LinkShortener", "Home"));
}
}
public void Go(string id = null)
{
if (id != null)
{
int decoding = Shortener.GetLongDecoding(id);
//Ideally, with the above ID we will squery the DB and get the respective url and redirect to that page
Response.Redirect("https://www.youtube.com/watch?v=dQw4w9WgXcQ");
}
else
{
//Otherwise, redirect back to our homepage
Response.Redirect(Request.Host.ToString());
}
}
public IActionResult LinkShortener(string longURL = null)
{
string shortURL = longURL;
ViewData["Title"] = "Link Shortener";
//If string from post was null, then this field isn't displayed
if (longURL != null)
{
//Randomly choose and int... This will actually be the PK value in the DB
Random rnd = new Random();
int value = rnd.Next(0, 100);
//Algorithm for shortended link
string encoding = Shortener.GetShortEncoding(value);
int decoding = Shortener.GetLongDecoding(encoding);
string urlHost = Request.Host.ToString();
shortURL = urlHost + "/Home/Go/" + encoding;
}
ViewData["shortURL"] = shortURL;
return(View());
}