public Task <Stat> Click(string segment, string referer, string ip) { return(Task.Run(() => { using (var ctx = new UrlShortnerContext()) { ShortUrl url = ctx.ShortUrls.Where(u => u.Segment == segment).FirstOrDefault(); if (url == null) { throw new UrlShortnerNotFoundException(); } url.NumOfClicks = url.NumOfClicks + 1; Stat stat = new Stat() { ClickDate = DateTime.Now, Ip = ip, Referer = referer, ShortUrl = url }; ctx.Stats.Add(stat); ctx.SaveChanges(); return stat; } })); }
public Task <ShortUrl> ShortenUrl(string longUrl, string ip, string segment = "") { return(Task.Run(() => { using (var ctx = new UrlShortnerContext()) { ShortUrl url; url = ctx.ShortUrls.Where(u => u.LongUrl == longUrl).FirstOrDefault(); if (url != null) { return url; } if (!string.IsNullOrEmpty(segment)) { if (ctx.ShortUrls.Where(u => u.Segment == segment).Any()) { throw new UrlShortnerConflictException(); } } else { segment = this.NewSegment(); } if (string.IsNullOrEmpty(segment)) { throw new ArgumentException("Segment is empty"); } url = new ShortUrl() { Added = DateTime.Now, Ip = ip, LongUrl = longUrl, NumOfClicks = 0, Segment = segment }; ctx.ShortUrls.Add(url); ctx.SaveChanges(); return url; } })); }
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline. public void Configure(IApplicationBuilder app, IWebHostEnvironment env, UrlShortnerContext dataContext) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } else { app.UseExceptionHandler("/Home/Error"); } dataContext.Database.Migrate(); app.UseStaticFiles(); app.UseRouting(); app.UseAuthorization(); app.UseEndpoints(endpoints => { endpoints.MapControllerRoute( name: "default", pattern: "{controller=Home}/{action=Index}/{id?}"); }); }
private string NewSegment() { using (var ctx = new UrlShortnerContext()) { int i = 0; while (true) { string segment = Guid.NewGuid().ToString().Substring(0, 6); if (!ctx.ShortUrls.Where(u => u.Segment == segment).Any()) { return(segment); } if (i > 30) { break; } i++; } return(string.Empty); } }
public UrlController(UrlShortnerContext dbContext) { _dbContext = dbContext ?? throw new ArgumentNullException(nameof(dbContext)); }
public RedirectController(UrlShortnerContext context) { _context = context; }
public UrlDataRepository(UrlShortnerContext context) { _context = context; }