How to use WaitForSelectorAsync method of PuppeteerSharp.Page class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Page.WaitForSelectorAsync

Authorization.cs

Source:Authorization.cs Github

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...57 WaitForSelectorOptions WaitForSelectorTimeout = new WaitForSelectorOptions { Timeout = DefaultTimeout };58 Log.Information($"DefaultTimeout: {p.DefaultTimeout}");59 Log.Information($"DefaultNavigationTimeout: {p.DefaultNavigationTimeout}");60 const string button = "body > app-root > n3-grid > app-login > div > div.notice > div > app-login-form > div > button";61 await p.WaitForSelectorAsync(button, WaitForSelectorTimeout);62 await System.Threading.Tasks.Task.Delay(10000);63 await p.ClickAsync(button);64 Log.Information("Первый клик {Button}: успешно!", "Войти с ЕСИА");65 Log.Information($"{timer.ElapsedMilliseconds}");66 timer.Restart();67 p = await GetPage(browser, "https://esia.gosuslugi.ru");68 Log.Information($"DefaultTimeout: {p.DefaultTimeout}");69 Log.Information($"DefaultNavigationTimeout: {p.DefaultNavigationTimeout}");70 // Авторизация71 await p.WaitForSelectorAsync("#mobileOrEmail", WaitForSelectorTimeout);72 await p.FocusAsync("#mobileOrEmail");73 await p.Keyboard.TypeAsync(ConfigJson.Login);74 Log.Information($"Login: {timer.ElapsedMilliseconds}");75 timer.Restart();76 await p.WaitForSelectorAsync("#password", WaitForSelectorTimeout);77 await p.FocusAsync("#password");78 await p.Keyboard.TypeAsync(ConfigJson.Password);79 Log.Information($"Password: {timer.ElapsedMilliseconds}");80 timer.Restart();81 await p.WaitForSelectorAsync("#loginByPwdButton > span", WaitForSelectorTimeout);82 await p.ClickAsync("#loginByPwdButton > span");83 Log.Information($"ClickAuthorizationButton: {timer.ElapsedMilliseconds}");84 Log.Information("Авторизация: успешно!");85 timer.Stop();86 /* Куки нужны для того, чтобы сайт меня опознал87 * при отправке http-запроса на сервер эл. дневника */88 // 10 попыток получения cookie.89 Cookie cookie;90 int count = 0;91 int attempts = (DefaultTimeout / 1000);92 do93 {94 if (count > attempts) throw new Exception("Cookie X-JMT-Token is not present.");95 await System.Threading.Tasks.Task.Delay(1000);...

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BotDavid.cs

Source:BotDavid.cs Github

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...25 var page = await browser.PagesAsync();26 await page[0].GoToAsync("https://lvaction.com");27 await page[0].SetViewportAsync(new ViewPortOptions() {Width = viewportWidth, Height = viewportHeight});28 string ws = browser.WebSocketEndpoint;29 await page[0].WaitForSelectorAsync(".logo_area_right #account");30 await page[0].ClickAsync(".logo_area_right #account");31 await page[0].TypeAsync(".logo_area_right #account", userName);32 await page[0].WaitForSelectorAsync(".logo_area_right #password");33 await page[0].ClickAsync(".logo_area_right #password");34 await page[0].TypeAsync(".logo_area_right #password", password);35 await page[0].WaitForSelectorAsync(".logo_area_right #login_submit");36 await page[0].ClickAsync(".logo_area_right #login_submit");37 await page[0].WaitForNavigationAsync();38 // click bar menu39 await page[0].WaitForSelectorAsync(40 ".row > .col-4 > .burger-container > #burger > .btmBar"41 );42 await page[0].ClickAsync(".row > .col-4 > .burger-container > #burger > .btmBar");43 //live casino mobile44 await page[0].WaitForSelectorAsync(45 "#ctl00_ctl00_MobileMenu #ctl00_ctl00_LiveCasinoMobile"46 );47 await Task.Delay(3000);48 await page[0].ClickAsync("#ctl00_ctl00_MobileMenu #ctl00_ctl00_LiveCasinoMobile");49 50 await Task.Delay(3000);51 page = await browser.PagesAsync();52 page[1].SetViewportAsync(new ViewPortOptions() {Width = viewportWidth+10, Height = viewportHeight+10});53 // click on pick button54 await page[1]55 .WaitForSelectorAsync(".balance > .ng-scope > .manualtransfer > .amounts > .btn:nth-child(4)");56 await page[1].ClickAsync(".balance > .ng-scope > .manualtransfer > .amounts > .btn:nth-child(4)");57 // click on input box 58 await page[1]59 .WaitForSelectorAsync(".balance > .ng-scope > .manualtransfer > .ng-pristine > .ng-pristine");60 await page[1].ClickAsync(".balance > .ng-scope > .manualtransfer > .ng-pristine > .ng-pristine");61 // enter amount62 await page[1].TypeAsync(63 ".balance > .ng-scope > .manualtransfer > .ng-pristine > .ng-pristine",64 amountTransfer.ToString()65 );66 // click on transfer button67 await page[1].WaitForSelectorAsync(".balance > .ng-scope > .manualtransfer > .ng-valid > .btn");68 await page[1].ClickAsync(".balance > .ng-scope > .manualtransfer > .ng-valid > .btn");69 // roulette tab70 await page[1].WaitForSelectorAsync(71 "body > .ng-scope > .container > .ng-scope:nth-child(2) > .ng-binding"72 );73 await page[1].ClickAsync(74 "body > .ng-scope > .container > .ng-scope:nth-child(2) > .ng-binding"75 );76 // click on routlet 1-100 $$ WE NEED TO CHANGE THIS77 await page[1].WaitForSelectorAsync(78 ".col:nth-child(1) > .game > .limit > .ng-scope:nth-child(1) > .box"79 );80 await page[1].ClickAsync(81 $".col: nth - child(1) > .game > .limit > .ng - scope:nth - child({table.ToString()}) > .box"82 );83 await page[1].WaitForNavigationAsync();84 page = await browser.PagesAsync();85 return page[2];86 }87 catch88 {89 return false;90 }91 }...

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Program.cs

Source:Program.cs Github

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...39 var adBtn = await page.QuerySelectorAsync(".ytp-ad-skip-button");40 if (adBtn != null) {41 await adBtn.ClickAsync();42 }43 var playBtn = await page.WaitForSelectorAsync("#play-pause-button");44 var prevBtn = await page.WaitForSelectorAsync(".previous-button");45 var nextBtn = await page.WaitForSelectorAsync(".next-button");46 var title = await page.WaitForSelectorAsync(".title.ytmusic-player-bar");47 var progress = await page.WaitForSelectorAsync("#progress-bar");48 while (true) {49 if (token.IsCancellationRequested) break;50 var read = Console.ReadLine();51 if (read == "ad") {52 var ad = await page.QuerySelectorAsync(".ytp-ad-skip-button");53 if (ad != null) {54 await ad.ClickAsync();55 Console.WriteLine("skipped");56 }57 }58 if (read == "reload") {59 playBtn = await page.WaitForSelectorAsync("#play-pause-button");60 prevBtn = await page.WaitForSelectorAsync(".previous-button");61 nextBtn = await page.WaitForSelectorAsync(".next-button");62 title = await page.WaitForSelectorAsync(".title.ytmusic-player-bar");63 progress = await page.WaitForSelectorAsync("#progress-bar");64 }65 if (read == "play") {66 await playBtn.ClickAsync();67 }68 if (read == "prev") {69 await prevBtn.ClickAsync();70 }71 if (read == "next") {72 await nextBtn.ClickAsync();73 }74 if (read == "isplaying") {75 Console.WriteLine(await IsPlaying());76 }77 if (read == "title") {...

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BaseAuthUIFixture.cs

Source:BaseAuthUIFixture.cs Github

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...47 Thread.Sleep(delay);48 if(OperatingSystem.IsWindows())49 await Page.ConfirmScreenshot(screensName).ConfigureAwait(false);50 response.Url.Should().Contain("login.microsoftonline.com");51 await Page.WaitForSelectorAsync("input[name='loginfmt']").ConfigureAwait(false);52 await Page.Keyboard.SendCharacterAsync(TestGoodUserName).ConfigureAwait(false);53 await Page.Keyboard.PressAsync(Key.Enter).ConfigureAwait(false);54 await Page.WaitForSelectorAsync("input[name='passwd']:not(.moveOffScreen)").ConfigureAwait(false);55 await Page.Keyboard.SendCharacterAsync(TestPassword).ConfigureAwait(false);56 await Page.Keyboard.PressAsync(Key.Enter).ConfigureAwait(false);57 await Page.WaitForSelectorAsync("input[id='idSIButton9']").ConfigureAwait(false); ;58 Thread.Sleep(delay);59 if (OperatingSystem.IsWindows())60 await Page.ConfirmScreenshot(screensName).ConfigureAwait(false);61 await Page.Keyboard.PressAsync(Key.Enter).ConfigureAwait(false);62 await Page.GoToAsync(AuthUrl, options: new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation.Networkidle0 } }).ConfigureAwait(false);63 //response = await page.WaitForNavigationAsync().ConfigureAwait(false);64 Authorized = true;65 }66 else67 {68 response = await Page.GoToAsync(AuthUrl).ConfigureAwait(false); ;69 }70 return response;71 }...

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pay.cshtml.cs

Source:pay.cshtml.cs Github

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...40 await page.ClickAsync("#cardlist > section > div.mobile-cardlist.cardlista > a:nth-child(1)");41 ElementHandle slideBtn = null;42 try43 {44 slideBtn = await page.WaitForSelectorAsync("#nc_1_n1t", new WaitForSelectorOptions { Timeout = 3 * 1000 });45 }46 catch (Exception ex)47 {48 var msg = ex.Message;49 }50 if (slideBtn != null)51 {52 var rect = await slideBtn.BoundingBoxAsync();53 var left = rect.X + 10;54 var top = rect.Y + 10;55 var mouse = page.Mouse;56 await mouse.MoveAsync(left, top);57 await page.Touchscreen.TapAsync(left, top);58 await mouse.DownAsync();59 var startTime = DateTime.Now;60 await mouse.MoveAsync(left + 800, top, new PuppeteerSharp.Input.MoveOptions { Steps = 30 });61 await page.Touchscreen.TapAsync(left + 800, top);62 Console.WriteLine(DateTime.Now - startTime);63 await mouse.UpAsync();64 }65 var channel = await page.WaitForSelectorAsync("[channelcode='alipaywap']");66 await channel.ClickAsync();67 var submit = await page.WaitForSelectorAsync("body > div.mask.confirmPay > section > div.btnPd > button");68 await submit.ClickAsync();69 }70 }71}...

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AvitoPostParser.cs

Source:AvitoPostParser.cs Github

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...43 };44 }45 private async Task<string> GetAuthorName(PuppeteerSharp.Page page)46 {47 var sellerInfoName = await page.WaitForSelectorAsync(".seller-info-name.js-seller-info-name a").EvaluateFunctionAsync<string>("element => element.innerHTML");48 sellerInfoName = sellerInfoName.Trim();49 var sellerInfoValueElement = await page.QuerySelectorAsync("div.seller-info-label + div.seller-info-value");50 if (sellerInfoValueElement != null)51 {52 var sellerInfoValue = (await sellerInfoValueElement.EvaluateFunctionAsync<string>("element => element.innerHTML")).Trim();53 sellerInfoName += ": " + sellerInfoValue;54 }55 return sellerInfoName;56 }57 private async Task<string> GetPhoneNumber(PuppeteerSharp.Page page)58 {59 string phoneImage = await page.WaitForSelectorAsync("div[data-marker='phone-popup/content'] img[data-marker='phone-popup/phone-image']").EvaluateFunctionAsync<string>("element => element.src");60 string imageStr = phoneImage.Substring(phoneImage.IndexOf(",") + 1).Trim();61 byte[] imageByte = System.Convert.FromBase64String(imageStr);62 using (var engine = new TesseractEngine("./tessdata", "eng", EngineMode.Default))63 {64 using (var memoryStream = new MemoryStream(imageByte))65 {66 var file = Pix.LoadFromMemory(memoryStream.ToArray());67 var page1 = engine.Process(file);68 return page1.GetText().Trim();69 }70 }71 }72 }73}...

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Browser.cs

Source:Browser.cs Github

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...41 {42 var pages = await browser.PagesAsync();43 var page = pages[0];44 await page.GoToAsync(AppConfig.tiqaUrl);45 var un = await page.WaitForSelectorAsync(AppConfig.unFld);46 var pw = await page.WaitForSelectorAsync(AppConfig.pwFld);47 var lgn = await page.WaitForSelectorAsync(AppConfig.lgnBtn);48 await un.TypeAsync(AppConfig.un);49 await pw.TypeAsync(AppConfig.pw);50 await lgn.ClickAsync();51 await page.WaitForNavigationAsync();52 var cks = await page.GetCookiesAsync();53 AppConfig.cks = cks.ToList();//.Where(c => c.Domain == new Uri(page.Url).Host).ToList();54 AppConfig.sessId = AppConfig.cks.Where(c => c.Name == AppConfig.sessIdName).FirstOrDefault().Value;55 AppConfig.WriteOut($">> session id for crawl set to {AppConfig.sessId}");56 AppConfig.crawlStartUri = page.Url;57 return true;58 }59 catch(NavigationException ex)60 {61 AppConfig.ErrHand(ex, $"XX failed to navigate to url");...

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BrowserTests.cs

Source:BrowserTests.cs Github

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...45 if (e.Message.Type == ConsoleType.Error)46 hasError = true;47 }48 await page.GoToAsync(BaseAddress);49 var selector = await page.WaitForSelectorAsync("div.table-responsive > table > tbody > tr:nth-child(1) > td:nth-child(3)");50 (await selector.InnerTextAsync()).ShouldBe("Astrix Mariette");51 hasError.ShouldBeFalse();52 await PrintPerf(page);53 }54 }55}...

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WaitForSelectorAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 MainAsync().GetAwaiter().GetResult();9 }10 static async Task MainAsync()11 {12 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });13 var page = await browser.NewPageAsync();14 await page.WaitForSelectorAsync("input[name='q']");15 await page.TypeAsync("input[name='q']", "Puppeteer");16 await page.ClickAsync("input[value='Google Search']");17 await page.WaitForNavigationAsync();18 await page.ScreenshotAsync("google.png");19 await browser.CloseAsync();20 }21 }22}23using System;24using System.Threading.Tasks;25using PuppeteerSharp;26{27 {28 static void Main(string[] args)29 {30 MainAsync().GetAwaiter().GetResult();31 }32 static async Task MainAsync()33 {34 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });35 var page = await browser.NewPageAsync();36 await page.WaitForSelectorAsync("input[name='q']");37 await page.TypeAsync("input[name='q']", "Puppeteer");38 await page.ClickAsync("input[value='Google Search']");39 await page.WaitForNavigationAsync();40 await page.ScreenshotAsync("google.png");41 var frame = page.MainFrame;42 await frame.WaitForSelectorAsync("div.g");43 await frame.ScreenshotAsync("google2.png");44 await browser.CloseAsync();45 }46 }47}48using System;49using System.Threading.Tasks;50using PuppeteerSharp;51{52 {53 static void Main(string[] args)54 {55 MainAsync().GetAwaiter().GetResult();56 }57 static async Task MainAsync()58 {59 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });60 var page = await browser.NewPageAsync();

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WaitForSelectorAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 });11 var page = await browser.NewPageAsync();12 await page.WaitForSelectorAsync("input[name='btnK']");13 Console.WriteLine("Search button is visible");14 await browser.CloseAsync();15 }16 }17}18using System;19using System.Threading.Tasks;20using PuppeteerSharp;21{22 {23 static async Task Main(string[] args)24 {25 var browser = await Puppeteer.LaunchAsync(new LaunchOptions26 {27 });28 var page = await browser.NewPageAsync();29 await page.WaitForSelectorAsync("input[name='btnK']", new WaitForSelectorOptions30 {31 });32 Console.WriteLine("Search button is visible");33 await browser.CloseAsync();34 }35 }36}37using System;38using System.Threading.Tasks;39using PuppeteerSharp;40{41 {42 static async Task Main(string[] args)43 {44 var browser = await Puppeteer.LaunchAsync(new LaunchOptions45 {46 });47 var page = await browser.NewPageAsync();48 await page.WaitForSelectorAsync("input[name='btnK']", new WaitForSelectorOptions49 {50 });51 Console.WriteLine("Search button is visible");52 await browser.CloseAsync();53 }54 }55}

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WaitForSelectorAsync

Using AI Code Generation

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1var page = await browser.NewPageAsync();2await page.WaitForSelectorAsync("input[name=q]");3await page.TypeAsync("input[name=q]", "PuppeteerSharp");4await page.ClickAsync("input[name=btnK]");5await page.WaitForNavigationAsync();6await page.ScreenshotAsync("screenshot.png");7var page = await browser.NewPageAsync();8var frame = page.MainFrame;9await frame.WaitForSelectorAsync("input[name=q]");10await frame.TypeAsync("input[name=q]", "PuppeteerSharp");11await frame.ClickAsync("input[name=btnK]");12await page.WaitForNavigationAsync();13await page.ScreenshotAsync("screenshot.png");14var page = await browser.NewPageAsync();15var elementHandle = await page.WaitForSelectorAsync("input[name=q]");16await elementHandle.TypeAsync("PuppeteerSharp");17await elementHandle.ClickAsync();18await page.WaitForNavigationAsync();19await page.ScreenshotAsync("screenshot.png");20var page = await browser.NewPageAsync();21var jSHandle = await page.WaitForSelectorAsync("input[name=q]");22await jSHandle.TypeAsync("PuppeteerSharp");23await jSHandle.ClickAsync();24await page.WaitForNavigationAsync();25await page.ScreenshotAsync("screenshot.png");26var page = await browser.NewPageAsync();27var iWaitTask = await page.WaitForSelectorAsync("input[name=q]");28await iWaitTask.TypeAsync("PuppeteerSharp");29await iWaitTask.ClickAsync();30await page.WaitForNavigationAsync();31await page.ScreenshotAsync("screenshot.png");32var page = await browser.NewPageAsync();

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WaitForSelectorAsync

Using AI Code Generation

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1var page = await browser.NewPageAsync();2var element = await page.WaitForSelectorAsync("input[name='q']");3await element.TypeAsync("PuppeteerSharp");4await page.Keyboard.PressAsync("Enter");5await page.WaitForNavigationAsync();6await page.ScreenshotAsync("example.png");7var page = await browser.NewPageAsync();8var frame = await page.MainFrame.WaitForSelectorAsync("iframe");9await frame.WaitForSelectorAsync("input[name='q']");10await frame.TypeAsync("PuppeteerSharp");11await page.Keyboard.PressAsync("Enter");12await page.WaitForNavigationAsync();13await page.ScreenshotAsync("example.png");14var page = await browser.NewPageAsync();15var element = await page.WaitForSelectorAsync("input[name='q']");16var frame = await element.WaitForSelectorAsync("iframe");17await frame.WaitForSelectorAsync("input[name='q']");18await frame.TypeAsync("PuppeteerSharp");19await page.Keyboard.PressAsync("Enter");20await page.WaitForNavigationAsync();21await page.ScreenshotAsync("example.png");22var page = await browser.NewPageAsync();23var element = await page.WaitForSelectorAsync("input[name='q']");24var frame = await element.EvaluateFunctionHandleAsync("element => element.contentDocument.querySelector('iframe')");25await frame.WaitForSelectorAsync("input[name='q']");26await frame.TypeAsync("PuppeteerSharp");27await page.Keyboard.PressAsync("Enter");28await page.WaitForNavigationAsync();29await page.ScreenshotAsync("example.png");30var page = await browser.NewPageAsync();31var element = await page.WaitForSelectorAsync("input[name='q']");32var frame = await element.EvaluateFunctionHandleAsync("element => element.contentDocument.querySelector('iframe')");33var input = await frame.EvaluateFunctionHandleAsync("frame => frame

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WaitForSelectorAsync

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 Test().Wait();9 }10 static async Task Test()11 {12 using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions13 {14 Args = new string[] { "--start-maximized" }15 }))16 {17 var page = await browser.NewPageAsync();18 await page.WaitForSelectorAsync("input[name='q']");19 await Task.Delay(5000);20 await page.ClickAsync("input[name='q']");

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