How to use Targets method of PuppeteerSharp.BrowserContext class

Best Puppeteer-sharp code snippet using PuppeteerSharp.BrowserContext.Targets

Browser.cs

Source:Browser.cs

...55        {56            Connection = connection;57            IgnoreHTTPSErrors = ignoreHTTPSErrors;58            DefaultViewport = defaultViewport;59            TargetsMap = new Dictionary<string, Target>();60            ScreenshotTaskQueue = new TaskQueue();61            DefaultContext = new BrowserContext(Connection, this, null);62            _contexts = contextIds.ToDictionary(keySelector: contextId => contextId,63                elementSelector: contextId => new BrowserContext(Connection, this, contextId));64            Connection.Closed += (object sender, EventArgs e) => Disconnected?.Invoke(this, new EventArgs());65            Connection.MessageReceived += Connect_MessageReceived;66            _chromiumProcess = chromiumProcess;67            _logger = Connection.LoggerFactory.CreateLogger<Browser>();68        }69        #region Private members70        internal readonly Dictionary<string, Target> TargetsMap;71        private readonly Dictionary<string, BrowserContext> _contexts;72        private readonly ILogger<Browser> _logger;73        private readonly ChromiumProcess _chromiumProcess;74        private Task _closeTask;75        #endregion76        #region Properties77        /// <summary>78        /// 79        /// </summary>80        public event EventHandler Closed;81        /// <summary>82        /// Raised when puppeteer gets disconnected from the Chromium instance. This might happen because one of the following83        /// - Chromium is closed or crashed84        /// - <see cref="Disconnect"/> method was called85        /// </summary>86        public event EventHandler Disconnected;87        /// <summary>88        /// Raised when the url of a target changes89        /// </summary>90        public event EventHandler<TargetChangedArgs> TargetChanged;91        /// <summary>92        /// Raised when a target is created, for example when a new page is opened by <c>window.open</c> <see href="https://developer.mozilla.org/en-US/docs/Web/API/Window/open"/> or <see cref="NewPageAsync"/>.93        /// </summary>94        public event EventHandler<TargetChangedArgs> TargetCreated;95        /// <summary>96        /// Raised when a target is destroyed, for example when a page is closed97        /// </summary>98        public event EventHandler<TargetChangedArgs> TargetDestroyed;99        /// <summary>100        /// Gets the Browser websocket url101        /// </summary>102        /// <remarks>103        /// Browser websocket endpoint which can be used as an argument to <see cref="Puppeteer.ConnectAsync(ConnectOptions, ILoggerFactory)"/>.104        /// The format is <c>ws://${host}:${port}/devtools/browser/[id]</c>105        /// You can find the <c>webSocketDebuggerUrl</c> from <c>http://${host}:${port}/json/version</c>.106        /// Learn more about the devtools protocol <see href="https://chromedevtools.github.io/devtools-protocol"/> 107        /// and the browser endpoint <see href="https://chromedevtools.github.io/devtools-protocol/#how-do-i-access-the-browser-target"/>108        /// </remarks>109        public string WebSocketEndpoint => Connection.Url;110        /// <summary>111        /// Gets the spawned browser process. Returns <c>null</c> if the browser instance was created with <see cref="Puppeteer.ConnectAsync(ConnectOptions, ILoggerFactory)"/> method.112        /// </summary>113        public Process Process => _chromiumProcess?.Process;114        /// <summary>115        /// Gets or Sets whether to ignore HTTPS errors during navigation116        /// </summary>117        public bool IgnoreHTTPSErrors { get; set; }118        /// <summary>119        /// Gets a value indicating if the browser is closed120        /// </summary>121        public bool IsClosed => _closeTask != null && _closeTask.IsCompleted && _closeTask.Exception != null;122        /// <summary>123        /// Returns the default browser context. The default browser context can not be closed.124        /// </summary>125        /// <value>The default context.</value>126        public BrowserContext DefaultContext { get; }127        internal TaskQueue ScreenshotTaskQueue { get; set; }128        internal Connection Connection { get; }129        internal ViewPortOptions DefaultViewport { get; }130        #endregion131        #region Public Methods132        /// <summary>133        /// Creates a new page134        /// </summary>135        /// <returns>Task which resolves to a new <see cref="Page"/> object</returns>136        public Task<Page> NewPageAsync() => DefaultContext.NewPageAsync();137        /// <summary>138        /// Returns An Array of all active targets139        /// </summary>140        /// <returns>An Array of all active targets</returns>141        public Target[] Targets() => TargetsMap.Values.Where(target => target.IsInitialized).ToArray();142        /// <summary>143        /// A target associated with the browser.144        /// </summary>145        public Target Target => Targets().FirstOrDefault(t => t.Type == TargetType.Browser);146        /// <summary>147        /// Creates a new incognito browser context. This won't share cookies/cache with other browser contexts.148        /// </summary>149        /// <returns>Task which resolves to a new <see cref="BrowserContext"/> object</returns>150        /// <example>151        /// <code>152        /// <![CDATA[153        /// using(var browser = await Puppeteer.LaunchAsync(new LaunchOptions()))154        /// {155        ///     // Create a new incognito browser context.156        ///     var context = await browser.CreateIncognitoBrowserContextAsync();157        ///     // Create a new page in a pristine context.158        ///     var page = await context.NewPageAsync();159        ///     // Do stuff160        ///     await page.GoToAsync("https://example.com");161        /// }162        /// ]]>163        /// </code>164        /// </example>165        public async Task<BrowserContext> CreateIncognitoBrowserContextAsync()166        {167            var response = await Connection.SendAsync<CreateBrowserContextResponse>("Target.createBrowserContext", new { }).ConfigureAwait(false);168            var context = new BrowserContext(Connection, this, response.BrowserContextId);169            _contexts[response.BrowserContextId] = context;170            return context;171        }172        /// <summary>173        /// Returns an array of all open <see cref="BrowserContext"/>. In a newly created browser, this will return a single instance of <see cref="BrowserContext"/>174        /// </summary>175        /// <returns>An array of <see cref="BrowserContext"/> objects</returns>176        public BrowserContext[] BrowserContexts()177        {178            var allContexts = new BrowserContext[_contexts.Count + 1];179            allContexts[0] = DefaultContext;180            _contexts.Values.CopyTo(allContexts, 1);181            return allContexts;182        }183        /// <summary>184        /// Returns a Task which resolves to an array of all open pages.185        /// Non visible pages, such as <c>"background_page"</c>, will not be listed here. You can find them using <see cref="Target.PageAsync"/>186        /// </summary>187        /// <returns>Task which resolves to an array of all open pages inside the Browser. 188        /// In case of multiple browser contexts, the method will return an array with all the pages in all browser contexts.189        /// </returns>190        public async Task<Page[]> PagesAsync()191            => (await Task.WhenAll(192                BrowserContexts().Select(t => t.PagesAsync())).ConfigureAwait(false)193               ).SelectMany(p => p).ToArray();194        /// <summary>195        /// Gets the browser's version196        /// </summary>197        /// <returns>For headless Chromium, this is similar to <c>HeadlessChrome/61.0.3153.0</c>. For non-headless, this is similar to <c>Chrome/61.0.3153.0</c></returns>198        /// <remarks>199        /// the format of <see cref="GetVersionAsync"/> might change with future releases of Chromium200        /// </remarks>201        public async Task<string> GetVersionAsync()202        {203            var version = await Connection.SendAsync("Browser.getVersion").ConfigureAwait(false);204            return version[MessageKeys.Product].AsString();205        }206        /// <summary>207        /// Gets the browser's original user agent208        /// </summary>209        /// <returns>Task which resolves to the browser's original user agent</returns>210        /// <remarks>211        /// Pages can override browser user agent with <see cref="Page.SetUserAgentAsync(string)"/>212        /// </remarks>213        public async Task<string> GetUserAgentAsync()214        {215            var version = await Connection.SendAsync("Browser.getVersion").ConfigureAwait(false);216            return version[MessageKeys.UserAgent].AsString();217        }218        /// <summary>219        /// Disconnects Puppeteer from the browser, but leaves the Chromium process running. After calling <see cref="Disconnect"/>, the browser object is considered disposed and cannot be used anymore220        /// </summary>221        public void Disconnect() => Connection.Dispose();222        /// <summary>223        /// Closes Chromium and all of its pages (if any were opened). The browser object itself is considered disposed and cannot be used anymore224        /// </summary>225        /// <returns>Task</returns>226        public Task CloseAsync() => _closeTask ?? (_closeTask = CloseCoreAsync());227        private async Task CloseCoreAsync()228        {229            try230            {231                try232                {233                    // Initiate graceful browser close operation but don't await it just yet,234                    // because we want to ensure chromium process shutdown first.235                    var browserCloseTask = Connection.SendAsync("Browser.close", null);236                    if (_chromiumProcess != null)237                    {238                        // Notify chromium process that exit is expected, but should be enforced if it239                        // doesn't occur withing the close timeout.240                        var closeTimeout = TimeSpan.FromMilliseconds(CloseTimeout);241                        await _chromiumProcess.EnsureExitAsync(closeTimeout).ConfigureAwait(false);242                    }243                    // Now we can safely await the browser close operation without risking keeping chromium244                    // process running for indeterminate period.245                    await browserCloseTask.ConfigureAwait(false);246                }247                finally248                {249                    Disconnect();250                }251            }252            catch (Exception ex)253            {254                _logger.LogError(ex, ex.Message);255                if (_chromiumProcess != null)256                {257                    await _chromiumProcess.KillAsync().ConfigureAwait(false);258                }259            }260            Closed?.Invoke(this, new EventArgs());261        }262        #endregion263        #region Private Methods264        internal void ChangeTarget(Target target)265        {266            var args = new TargetChangedArgs { Target = target };267            TargetChanged?.Invoke(this, args);268            target.BrowserContext.OnTargetChanged(this, args);269        }270        internal async Task<Page> CreatePageInContextAsync(string contextId)271        {272            var args = new Dictionary<string, object> { [MessageKeys.Url] = "about:blank" };273            if (contextId != null)274            {275                args[MessageKeys.BrowserContextId] = contextId;276            }277            var targetId = (await Connection.SendAsync("Target.createTarget", args).ConfigureAwait(false))[MessageKeys.TargetId].ToString();278            var target = TargetsMap[targetId];279            await target.InitializedTask.ConfigureAwait(false);280            return await target.PageAsync().ConfigureAwait(false);281        }282        internal async Task DisposeContextAsync(string contextId)283        {284            await Connection.SendAsync("Target.disposeBrowserContext", new { browserContextId = contextId }).ConfigureAwait(false);285            _contexts.Remove(contextId);286        }287        private async void Connect_MessageReceived(object sender, MessageEventArgs e)288        {289            switch (e.MessageID)290            {291                case "Target.targetCreated":292                    await CreateTargetAsync(e.MessageData.ToObject<TargetCreatedResponse>()).ConfigureAwait(false);293                    return;294                case "Target.targetDestroyed":295                    await DestroyTargetAsync(e.MessageData.ToObject<TargetDestroyedResponse>()).ConfigureAwait(false);296                    return;297                case "Target.targetInfoChanged":298                    ChangeTargetInfo(e.MessageData.ToObject<TargetCreatedResponse>());299                    return;300            }301        }302        private void ChangeTargetInfo(TargetCreatedResponse e)303        {304            if (!TargetsMap.ContainsKey(e.TargetInfo.TargetId))305            {306                throw new InvalidTargetException("Target should exists before ChangeTargetInfo");307            }308            var target = TargetsMap[e.TargetInfo.TargetId];309            target.TargetInfoChanged(e.TargetInfo);310        }311        private async Task DestroyTargetAsync(TargetDestroyedResponse e)312        {313            if (!TargetsMap.ContainsKey(e.TargetId))314            {315                throw new InvalidTargetException("Target should exists before DestroyTarget");316            }317            var target = TargetsMap[e.TargetId];318            TargetsMap.Remove(e.TargetId);319            target.CloseTaskWrapper.TrySetResult(true);320            if (await target.InitializedTask.ConfigureAwait(false))321            {322                var args = new TargetChangedArgs { Target = target };323                TargetDestroyed?.Invoke(this, args);324                target.BrowserContext.OnTargetDestroyed(this, args);325            }326        }327        private async Task CreateTargetAsync(TargetCreatedResponse e)328        {329            var targetInfo = e.TargetInfo;330            var browserContextId = targetInfo.BrowserContextId;331            if (!(browserContextId != null && _contexts.TryGetValue(browserContextId, out var context)))332            {333                context = DefaultContext;334            }335            var target = new Target(336                e.TargetInfo,337                info => Connection.CreateSessionAsync(info),338                context);339            if (TargetsMap.ContainsKey(e.TargetInfo.TargetId))340            {341                _logger.LogError("Target should not exist before targetCreated");342            }343            TargetsMap[e.TargetInfo.TargetId] = target;344            if (await target.InitializedTask.ConfigureAwait(false))345            {346                var args = new TargetChangedArgs { Target = target };347                TargetCreated?.Invoke(this, args);348                context.OnTargetCreated(this, args);349            }350        }351        internal static async Task<Browser> CreateAsync(352            Connection connection,353            string[] contextIds,354            bool ignoreHTTPSErrors,355            ViewPortOptions defaultViewPort,356            ChromiumProcess chromiumProcess)357        {358            var browser = new Browser(connection, contextIds, ignoreHTTPSErrors, defaultViewPort, chromiumProcess);359            await connection.SendAsync("Target.setDiscoverTargets", new360            {361                discover = true362            }).ConfigureAwait(false);363            return browser;364        }365        #endregion366        #region IDisposable367        /// <summary>368        /// Closes <see cref="Connection"/> and any Chromium <see cref="Process"/> that was369        /// created by Puppeteer.370        /// </summary>371        public void Dispose() => _ = CloseAsync();372        #endregion373    }...

BrowserContextTests.cs

Source:BrowserContextTests.cs

...39            Assert.Single(Browser.BrowserContexts());40        }41        [PuppeteerTest("browsercontext.spec.ts", "BrowserContext", "should close all belonging targets once closing context")]42        [PuppeteerFact]43        public async Task ShouldCloseAllBelongingTargetsOnceClosingContext()44        {45            Assert.Single((await Browser.PagesAsync()));46            var context = await Browser.CreateIncognitoBrowserContextAsync();47            await context.NewPageAsync();48            Assert.Equal(2, (await Browser.PagesAsync()).Length);49            Assert.Single((await context.PagesAsync()));50            await context.CloseAsync();51            Assert.Single((await Browser.PagesAsync()));52        }53        [PuppeteerTest("browsercontext.spec.ts", "BrowserContext", "window.open should use parent tab context")]54        [SkipBrowserFact(skipFirefox: true)]55        public async Task WindowOpenShouldUseParentTabContext()56        {57            var context = await Browser.CreateIncognitoBrowserContextAsync();58            var page = await context.NewPageAsync();59            await page.GoToAsync(TestConstants.EmptyPage);60            var popupTargetCompletion = new TaskCompletionSource<Target>();61            Browser.TargetCreated += (_, e) => popupTargetCompletion.SetResult(e.Target);62            await Task.WhenAll(63                popupTargetCompletion.Task,64                page.EvaluateFunctionAsync("url => window.open(url)", TestConstants.EmptyPage)65            );66            var popupTarget = await popupTargetCompletion.Task;67            Assert.Same(context, popupTarget.BrowserContext);68            await context.CloseAsync();69        }70        [PuppeteerTest("browsercontext.spec.ts", "BrowserContext", "should fire target events")]71        [SkipBrowserFact(skipFirefox: true)]72        public async Task ShouldFireTargetEvents()73        {74            var context = await Browser.CreateIncognitoBrowserContextAsync();75            var events = new List<string>();76            context.TargetCreated += (_, e) => events.Add("CREATED: " + e.Target.Url);77            context.TargetChanged += (_, e) => events.Add("CHANGED: " + e.Target.Url);78            context.TargetDestroyed += (_, e) => events.Add("DESTROYED: " + e.Target.Url);79            var page = await context.NewPageAsync();80            await page.GoToAsync(TestConstants.EmptyPage);81            await page.CloseAsync();82            Assert.Equal(new[] {83                $"CREATED: {TestConstants.AboutBlank}",84                $"CHANGED: {TestConstants.EmptyPage}",85                $"DESTROYED: {TestConstants.EmptyPage}"86            }, events);87            await context.CloseAsync();88        }89        [PuppeteerTest("browsercontext.spec.ts", "BrowserContext", "should isolate local storage and cookies")]90        [PuppeteerFact]91        public async Task ShouldIsolateLocalStorageAndCookies()92        {93            // Create two incognito contexts.94            var context1 = await Browser.CreateIncognitoBrowserContextAsync();95            var context2 = await Browser.CreateIncognitoBrowserContextAsync();96            Assert.Empty(context1.Targets());97            Assert.Empty(context2.Targets());98            // Create a page in first incognito context.99            var page1 = await context1.NewPageAsync();100            await page1.GoToAsync(TestConstants.EmptyPage);101            await page1.EvaluateExpressionAsync(@"{102                localStorage.setItem('name', 'page1');103                document.cookie = 'name=page1';104            }");105            Assert.Single(context1.Targets());106            Assert.Empty(context2.Targets());107            // Create a page in second incognito context.108            var page2 = await context2.NewPageAsync();109            await page2.GoToAsync(TestConstants.EmptyPage);110            await page2.EvaluateExpressionAsync(@"{111                localStorage.setItem('name', 'page2');112                document.cookie = 'name=page2';113            }");114            Assert.Single(context1.Targets());115            Assert.Equal(page1.Target, context1.Targets()[0]);116            Assert.Single(context2.Targets());117            Assert.Equal(page2.Target, context2.Targets()[0]);118            // Make sure pages don't share localstorage or cookies.119            Assert.Equal("page1", await page1.EvaluateExpressionAsync<string>("localStorage.getItem('name')"));120            Assert.Equal("name=page1", await page1.EvaluateExpressionAsync<string>("document.cookie"));121            Assert.Equal("page2", await page2.EvaluateExpressionAsync<string>("localStorage.getItem('name')"));122            Assert.Equal("name=page2", await page2.EvaluateExpressionAsync<string>("document.cookie"));123            // Cleanup contexts.124            await Task.WhenAll(context1.CloseAsync(), context2.CloseAsync());125            Assert.Single(Browser.BrowserContexts());126        }127        [PuppeteerTest("browsercontext.spec.ts", "BrowserContext", "should work across sessions")]128        [SkipBrowserFact(skipFirefox: true)]129        public async Task ShouldWorkAcrossSessions()130        {131            Assert.Single(Browser.BrowserContexts());...

PageEventsConsoleTests.cs

Source:PageEventsConsoleTests.cs

...163                await new Promise(x => frame.onload = x);164                // 3. After that, remove the iframe.165                frame.remove();166            }");167            var popupTarget = Page.BrowserContext.Targets().First(target => target != Page.Target);168            // 4. Connect to the popup and make sure it doesn't throw.169            await popupTarget.PageAsync();170        }171    }172}...

ConsoleTests.cs

Source:ConsoleTests.cs

...147                await new Promise(x => frame.onload = x);148                // 3. After that, remove the iframe.149                frame.remove();150            }");151            var popupTarget = Page.BrowserContext.Targets().First(target => target != Page.Target);152            // 4. Connect to the popup and make sure it doesn't throw.153            await popupTarget.PageAsync();154        }155    }156}...

BrowserContext.cs

Source:BrowserContext.cs

...46        /// <summary>47        /// Gets an array of all active targets inside the browser context 48        /// </summary>49        /// <returns>An array of all active targets inside the browser context</returns>50        public Target[] Targets() => Array.FindAll(Browser.Targets(), target => target.BrowserContext == this);51        /// <summary>52        /// This searches for a target in this specific browser context.53        /// <example>54        /// <code>55        /// <![CDATA[56        /// await page.EvaluateAsync("() => window.open('https://www.example.com/')");57        /// var newWindowTarget = await browserContext.WaitForTargetAsync((target) => target.Url == "https://www.example.com/");58        /// ]]>59        /// </code>60        /// </example>61        /// </summary>62        /// <param name="predicate">A function to be run for every target</param>63        /// <param name="options">options</param>64        /// <returns>Resolves to the first target found that matches the predicate function.</returns>65        public Task<Target> WaitForTargetAsync(Func<Target, bool> predicate, WaitForOptions options = null)66            => Browser.WaitForTargetAsync((target) => target.BrowserContext == this && predicate(target), options);67        /// <summary>68        /// An array of all pages inside the browser context.69        /// </summary>70        /// <returns>Task which resolves to an array of all open pages. 71        /// Non visible pages, such as <c>"background_page"</c>, will not be listed here. 72        /// You can find them using <see cref="Target.PageAsync"/>.</returns>73        public async Task<Page[]> PagesAsync()74        => (await Task.WhenAll(75            Targets().Where(t => t.Type == TargetType.Page).Select(t => t.PageAsync())).ConfigureAwait(false)76           ).Where(p => p != null).ToArray();77        /// <summary>78        /// Creates a new page79        /// </summary>80        /// <returns>Task which resolves to a new <see cref="Page"/> object</returns>81        public Task<Page> NewPageAsync() => Browser.CreatePageInContextAsync(_id);82        /// <summary>83        /// Closes the browser context. All the targets that belong to the browser context will be closed84        /// </summary>85        /// <returns>Task</returns>86        public Task CloseAsync()87        {88            if (_id == null)89            {...

Target.cs

Source:Target.cs

...57        /// <remarks>58        /// Top-level targets return <c>null</c>.59        /// </remarks>60        public Target Opener => _targetInfo.OpenerId != null ?61            Browser.TargetsMap.GetValueOrDefault(_targetInfo.OpenerId) : null;62        /// <summary>63        /// Get the browser the target belongs to.64        /// </summary>65        public Browser Browser => BrowserContext.Browser;66        /// <summary>67        /// Get the browser context the target belongs to.68        /// </summary>69        public BrowserContext BrowserContext { get; }70        internal Task<bool> InitializedTask => InitilizedTaskWrapper.Task;71        internal TaskCompletionSource<bool> InitilizedTaskWrapper { get; }72        internal Task CloseTask => CloseTaskWrapper.Task;73        internal TaskCompletionSource<bool> CloseTaskWrapper { get; }74        #endregion75        /// <summary>...

Targets

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    static async Task Main(string[] args)6    {7        await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);8        var browser = await Puppeteer.LaunchAsync(new LaunchOptions9        {10            Args = new string[] { "--no-sandbox" }11        });12        var page = await browser.NewPageAsync();13        var targets = await page.TargetsAsync();14        foreach (var target in targets)15        {16            Console.WriteLine(target.Url);17        }18        await browser.CloseAsync();19    }20}21public async Task<Target[]> TargetsAsync()22using System;23using System.Threading.Tasks;24using PuppeteerSharp;25{26    static async Task Main(string[] args)27    {28        await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);29        var browser = await Puppeteer.LaunchAsync(new LaunchOptions30        {31            Args = new string[] { "--no-sandbox" }32        });33        var page = await browser.NewPageAsync();34        var targets = await page.TargetsAsync();35        foreach (var target in targets)36        {37            Console.WriteLine(target.Url);38        }39        await browser.CloseAsync();40    }41}42PuppeteerSharp.BrowserContext.TargetsAsync() Method returns the targets for the browser context. A target is

Targets

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            using var browser = await Puppeteer.LaunchAsync(options);10            var page = await browser.NewPageAsync();11            var targets = await browser.TargetsAsync();12            foreach (var target in targets)13            {14                Console.WriteLine(target.Url);15            }16            Console.ReadLine();17        }18    }19}20using System;21using System.Threading.Tasks;22using PuppeteerSharp;23{24    {25        static async Task Main(string[] args)26        {27            var options = new LaunchOptions { Headless = false };28            using var browser = await Puppeteer.LaunchAsync(options);29            var page = await browser.NewPageAsync();30            var targets = await browser.TargetsAsync();

Targets

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",4});5var page = await browser.NewPageAsync();6await page.TargetsAsync();7await page.ScreenshotAsync("google.png");8await browser.CloseAsync();9var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11    ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",12});13var page = await browser.NewPageAsync();14await page.SetViewportAsync(new ViewPortOptions { Width = 1200, Height = 800 });15await page.ScreenshotAsync("google.png");16await browser.CloseAsync();17var browser = await Puppeteer.LaunchAsync(new LaunchOptions18{19    ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",20});21var page = await browser.NewPageAsync();22await page.EmulateAsync(new EmulateOptions { ViewPort = new ViewPortOptions { Width = 1200, Height = 800 } });23await page.ScreenshotAsync("google.png");24await browser.CloseAsync();25var browser = await Puppeteer.LaunchAsync(new LaunchOptions26{27    ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",28});29var page = await browser.NewPageAsync();

Targets

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;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            var targets = await page.TargetsAsync();13            foreach (var target in targets)14            {15                Console.WriteLine(target.Url);16            }17            await browser.CloseAsync();18        }19    }20}21using PuppeteerSharp;22using System;23using System.Threading.Tasks;24{25    {26        static async Task Main(string[] args)27        {28            var browser = await Puppeteer.LaunchAsync(new LaunchOptions29            {30            });31            var page = await browser.NewPageAsync();32            page.TargetChanged += async (sender, e) =>33            {34                Console.WriteLine(e.Target.Url);35            };36            await browser.CloseAsync();37        }38    }39}40using PuppeteerSharp;41using System;42using System.Threading.Tasks;43{44    {45        static async Task Main(string[] args)46        {

Targets

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            MainAsync().Wait();9        }10        static async Task MainAsync()11        {12            var options = new LaunchOptions { Headless = false };13            using (var browser = await Puppeteer.LaunchAsync(options))14            {15                var page = await browser.NewPageAsync();16                var target = await browser.TargetsAsync();17                foreach (var item in target)18                {19                    if (item.Type == TargetType.Page)20                    {21                        var page1 = await item.PageAsync();22                    }23                }24            }25        }26    }27}28using PuppeteerSharp;29using System;30using System.Threading.Tasks;31{32    {33        static void Main(string[] args)34        {35            MainAsync().Wait();36        }37        static async Task MainAsync()38        {39            var options = new LaunchOptions { Headless = false };40            using (var browser = await Puppeteer.LaunchAsync(options))41            {42                var page = await browser.NewPageAsync();43                var target = await browser.TargetsAsync();44                foreach (var item in target)45                {46                    if (item.Type == TargetType.Page)47                    {48                        var page1 = await item.PageAsync();49                    }50                }51            }52        }53    }54}

Targets

Using AI Code Generation

1using PuppeteerSharp;2{3    static void Main(string[] args)4    {5        Run().Wait();6    }7    static async System.Threading.Tasks.Task Run()8    {9        await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);10        using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))11        using (var page = await browser.NewPageAsync())12        {13            var targets = await browser.TargetsAsync();14            foreach (var target in targets)15            {16                if (target.Type == TargetType.Page)17                {18                    using (var targetPage = await target.PageAsync())19                    {20                        await targetPage.WaitForNavigationAsync();21                    }22                }23            }24        }25    }26}

Targets

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ScreenshotAsync("google.png");14            var targets = await browser.TargetsAsync();15            foreach (var target in targets)16            {

Targets

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))10            {11                var page = await browser.NewPageAsync();12                var targets = await browser.TargetsAsync();13                foreach (var target in targets)14                {15                    if (target.Type == TargetType.Page)16                    {17                        var targetPage = await target.PageAsync();18                        Console.WriteLine(targetPage.Url);19                    }20                }21            }22        }23    }24}

Targets

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            using (var browser = await Puppeteer.LaunchAsync(options))10            {11                var page = await browser.NewPageAsync();12                var targets = await browser.TargetsAsync();13                foreach (var target in targets)14                {15                    Console.WriteLine("Target URL: " + target.Url);16                    Console.WriteLine("Target Type: " + target.Type);17                    Console.WriteLine("Target TargetId: " + target.TargetId);18                    Console.WriteLine("Target BrowserContext: " + target.BrowserContext);19                    Console.WriteLine("Target Page: " + target.Page);20                    Console.WriteLine("21");22                }23            }24        }25    }26}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.