public ActionResult <ShortLinkPair> Encode(string longLink)
{
try
{
// Check to see if the link to be encoded is a valid uri. If not, throw an exception.
VerifyLinkValidity(longLink);
var pair = GetPairByLongLink(longLink);
if (pair != null)
{
return(pair);
}
// The long link isn't in the database so generate a shortened link for it to be saved to the database.
var shortenedLink = GenerateShortLink(longLink);
// Create a new pair and add it to the database.
pair = new ShortLinkPair()
{
LongLink = longLink, ShortenedLink = shortenedLink
};
this.apiContext.AddPair(pair);
this.apiContext.SaveChanges();
return(pair);
}
catch (Exception ex)
{
return(BadRequest(ex.Message));
}
}
// POST
public void AddPair(ShortLinkPair pair)
{
// Adds a pair to the database.
Pairs.Add(pair);
}
