public async Task <IHttpActionResult> Get(string shortUrl)
{
string CachedLongurl = lruCache.Get(shortUrl);
if (!string.IsNullOrEmpty(CachedLongurl))
{
return(Redirect(new System.Uri(CachedLongurl)));
}
string longUrl;
try
{
longUrl = await database.GetLongUrlAsync(shortUrl);
}
catch (InvalidOperationException)
{
return(NotFound());
}
lruCache.Add(shortUrl, longUrl);
return(Redirect(new System.Uri(longUrl)));
}
