How to use TargetClosedException method of PuppeteerSharp.TargetClosedException class

Best Puppeteer-sharp code snippet using PuppeteerSharp.TargetClosedException.TargetClosedException

Connection.cs

Source:Connection.cs

...76        internal async Task<JObject> SendAsync(string method, dynamic args = null, bool waitForCallback = true)77        {78            if (IsClosed)79            {80                throw new TargetClosedException($"Protocol error({method}): Target closed.");81            }82            var id = Interlocked.Increment(ref _lastId);83            var message = JsonConvert.SerializeObject(new Dictionary<string, object>84            {85                { MessageKeys.Id, id },86                { MessageKeys.Method, method },87                { MessageKeys.Params, args }88            });89            _logger.LogTrace("Send âº {Id} Method {Method} Params {@Params}", id, method, (object)args);90            MessageTask callback = null;91            if (waitForCallback)92            {93                callback = new MessageTask94                {95                    TaskWrapper = new TaskCompletionSource<JObject>(),96                    Method = method97                };98                _callbacks[id] = callback;99            }100            await Transport.SendAsync(message).ConfigureAwait(false);101            return waitForCallback ? await callback.TaskWrapper.Task.ConfigureAwait(false) : null;102        }103        internal async Task<T> SendAsync<T>(string method, dynamic args = null)104        {105            JToken response = await SendAsync(method, args).ConfigureAwait(false);106            return response.ToObject<T>();107        }108        internal async Task<CDPSession> CreateSessionAsync(TargetInfo targetInfo)109        {110            var sessionId = (await SendAsync("Target.attachToTarget", new111            {112                targetId = targetInfo.TargetId113            }).ConfigureAwait(false))[MessageKeys.SessionId].AsString();114            var session = new CDPSession(this, targetInfo.Type, sessionId);115            _sessions.TryAdd(sessionId, session);116            return session;117        }118        internal bool HasPendingCallbacks() => _callbacks.Count != 0;119        #endregion120        private void OnClose()121        {122            if (IsClosed)123            {124                return;125            }126            IsClosed = true;127            Transport.StopReading();128            Closed?.Invoke(this, new EventArgs());129            foreach (var session in _sessions.Values.ToArray())130            {131                session.OnClosed();132            }133            _sessions.Clear();134            foreach (var response in _callbacks.Values.ToArray())135            {136                response.TaskWrapper.TrySetException(new TargetClosedException(137                    $"Protocol error({response.Method}): Target closed."138                ));139            }140            _callbacks.Clear();141        }142        internal static IConnection FromSession(CDPSession session)143        {144            var connection = session.Connection;145            while (connection is CDPSession)146            {147                connection = connection.Connection;148            }149            return connection;150        }...

NavigatorWatcher.cs

Source:NavigatorWatcher.cs

...56            frameManager.FrameNavigatedWithinDocument += NavigatedWithinDocument;57            frameManager.FrameDetached += OnFrameDetached;58            networkManager.Request += OnRequest;59            Connection.FromSession(client).Closed += (sender, e)60                => Terminate(new TargetClosedException("Navigation failed because browser has disconnected!"));61            _sameDocumentNavigationTaskWrapper = new TaskCompletionSource<bool>();62            _newDocumentNavigationTaskWrapper = new TaskCompletionSource<bool>();63            _terminationTaskWrapper = new TaskCompletionSource<bool>();64            _timeoutTask = TaskHelper.CreateTimeoutTask(timeout);65        }66        #region Properties67        public Task<Task> NavigationTask { get; internal set; }68        public Task<bool> SameDocumentNavigationTask => _sameDocumentNavigationTaskWrapper.Task;69        public Task<bool> NewDocumentNavigationTask => _newDocumentNavigationTaskWrapper.Task;70        public Response NavigationResponse => _navigationRequest?.Response;71        public Task<Task> TimeoutOrTerminationTask => Task.WhenAny(_timeoutTask, _terminationTaskWrapper.Task);72        #endregion73        #region Private methods74        private void OnFrameDetached(object sender, FrameEventArgs e)...

BrowserActor.cs

Source:BrowserActor.cs

...105                        }106                        else if (exception is SelectorException)107                        {108                        }109                        else if (exception is TargetClosedException) // Page was closed110                        {111                            return Directive.Restart;112                        }113                    }114                    else if (exception is NullReferenceException)115                    {116                        return Directive.Escalate;117                    }118                    return Directive.Resume;119                });120        }121        #region Lifecycle Hooks122        protected override void PreStart()123        {...

MirrorTaskExecutioner.cs

Source:MirrorTaskExecutioner.cs

...95                }96            }97            catch (PuppeteerException e)98            {99                if (e is TargetClosedException || e is NavigationException100                                               || e is ChromiumProcessException)101                {102                    //stop action103                    Log.Information("You have stopped the uploading process.");104                }105                else106                {107                    throw;108                }109            }110            catch (Exception e)111            {112                Log.Error($"Uploading process has stopped.");113                Log.Error($"{e}");...

PuppeteerLoader.cs

Source:PuppeteerLoader.cs

...32            logger.LogInformation($"Create {nameof(Browser)}");33        }34        public async Task<IDocument> LoadHtml(string requestUri, Site site, CancellationToken token)35        {36            return await ReconnectOnExceptionAsync<IDocument, TargetClosedException>(37                    2,38                    new TimeSpan(0, 0, 1),39                    async () => await LoadHtmlContent(requestUri, site, token));40        }41        private async Task<IDocument> LoadHtmlContent(string requestUri, Site site, CancellationToken token)42        {43            requestUri.StringNullOrEmptyValidate(nameof(requestUri));44            site.NullValidate(nameof(site));45            var parserSettings = configuration.GetSection(site.Name).Get<ExtractorSettings>();46            using var page = await browser.NewPageAsync();47            await page.GoToAsync(requestUri);48            var waitingSelector = parserSettings.WaitingSelector ?? parserSettings.Name;49            await page.WaitForSelectorAsync(waitingSelector);50            logger.LogInformation($"Successfully sent request {requestUri}");...

CloseTests.cs

Source:CloseTests.cs

...9        public CloseTests(ITestOutputHelper output) : base(output) { }10        [Fact]11        public async Task ShouldRejectAllPromisesWhenPageIsClosed()12        {13            var exceptionTask = Assert.ThrowsAsync<TargetClosedException>(() => Page.EvaluateFunctionAsync("() => new Promise(r => {})"));14            await Task.WhenAll(15                exceptionTask,16                Page.CloseAsync()17            );18            var exception = await exceptionTask;19            Assert.Contains("Protocol error", exception.Message);20            Assert.Equal("Target.detachedFromTarget", exception.CloseReason);21        }22        [Fact]23        public async Task ShouldNotBeVisibleInBrowserPages()24        {25            Assert.Contains(Page, await Browser.PagesAsync());26            await Page.CloseAsync();27            Assert.DoesNotContain(Page, await Browser.PagesAsync());28        }29        [Fact]30        public async Task ShouldRunBeforeunloadIfAskedFor()31        {32            await Page.GoToAsync(TestConstants.ServerUrl + "/beforeunload.html");33            var dialogTask = new TaskCompletionSource<bool>();34            Page.Dialog += async (sender, e) =>35            {36                Assert.Equal(DialogType.BeforeUnload, e.Dialog.DialogType);37                Assert.Equal(string.Empty, e.Dialog.Message);38                Assert.Equal(string.Empty, e.Dialog.DefaultValue);39                await e.Dialog.Accept();40                dialogTask.TrySetResult(true);41            };42            var closeTask = new TaskCompletionSource<bool>();43            Page.Close += (sender, e) => closeTask.TrySetResult(true);44            // We have to interact with a page so that 'beforeunload' handlers45            // fire.46            await Page.ClickAsync("body");47            await Page.CloseAsync(new PageCloseOptions { RunBeforeUnload = true });48            await Task.WhenAll(49                dialogTask.Task,50                closeTask.Task51            );52        }53        [Fact]54        public async Task ShouldNotRunBeforeunloadByDefault()55        {56            await Page.GoToAsync(TestConstants.ServerUrl + "/beforeunload.html");57            await Page.ClickAsync("body");58            await Page.CloseAsync();59        }60        [Fact]61        public async Task ShouldSetThePageCloseState()62        {63            Assert.False(Page.IsClosed);64            await Page.CloseAsync();65            Assert.True(Page.IsClosed);66        }67        [Fact]68        public async Task ShouldTerminateNetworkWaiters()69        {70            var newPage = await Context.NewPageAsync();71            var requestTask = newPage.WaitForRequestAsync(TestConstants.EmptyPage);72            var responseTask = newPage.WaitForResponseAsync(TestConstants.EmptyPage);73            await newPage.CloseAsync();74            var exception = await Assert.ThrowsAsync<TargetClosedException>(() => requestTask);75            Assert.Contains("Target closed", exception.Message);76            Assert.DoesNotContain("Timeout", exception.Message);77            exception = await Assert.ThrowsAsync<TargetClosedException>(() => responseTask);78            Assert.Contains("Target closed", exception.Message);79            Assert.DoesNotContain("Timeout", exception.Message);80        }81        [Fact(Timeout = 10000)]82        public async Task ShouldCloseWhenConnectionBreaksPrematurely()83        {84            Browser.Connection.Dispose();85            await Page.CloseAsync();86        }87    }88}...

BrowserCloseTests.cs

Source:BrowserCloseTests.cs

...18                var newPage = await remote.NewPageAsync();19                var requestTask = newPage.WaitForRequestAsync(TestConstants.EmptyPage);20                var responseTask = newPage.WaitForResponseAsync(TestConstants.EmptyPage);21                await browser.CloseAsync();22                var exception = await Assert.ThrowsAsync<TargetClosedException>(() => requestTask);23                Assert.Contains("Target closed", exception.Message);24                Assert.DoesNotContain("Timeout", exception.Message);25                exception = await Assert.ThrowsAsync<TargetClosedException>(() => responseTask);26                Assert.Contains("Target closed", exception.Message);27                Assert.DoesNotContain("Timeout", exception.Message);28            }29        }30    }31}...

TargetClosedException.cs

Source:TargetClosedException.cs

2{3    /// <summary>4    /// Exception thrown by the <see cref="Connection"/> when it detects that the target was closed.5    /// </summary>6    public class TargetClosedException : PuppeteerException7    {8        /// <summary>9        /// Initializes a new instance of the <see cref="TargetClosedException"/> class.10        /// </summary>11        /// <param name="message">Message.</param>12        public TargetClosedException(string message) : base(message)13        {14        }15    }...

TargetClosedException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            MainAsync().GetAwaiter().GetResult();9        }10        static async Task MainAsync()11        {12            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))13            using (var page = await browser.NewPageAsync())14            {15                await page.WaitForNavigationAsync();16                var newPage = await browser.NewPageAsync();17                await newPage.CloseAsync();18                {19                    await navigationTask;20                }21                catch (TargetClosedException e)22                {23                    Console.WriteLine(e.Message);24                }25            }26        }27    }28}29using PuppeteerSharp;30using System;31using System.Threading.Tasks;32{33    {34        static void Main(string[] args)35        {36            MainAsync().GetAwaiter().GetResult();37        }38        static async Task MainAsync()39        {40            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))41            using (var page = await browser.NewPageAsync())42            {43                await page.WaitForNavigationAsync();44                var newPage = await browser.NewPageAsync();45                await newPage.CloseAsync();46                {47                    await navigationTask;48                }49                catch (TargetClosedException e)50                {51                    Console.WriteLine(e.Message);52                }53            }54        }55    }56}57using PuppeteerSharp;58using System;59using System.Threading.Tasks;60{61    {62        static void Main(string[] args)63        {64            MainAsync().GetAwaiter().GetResult();65        }66        static async Task MainAsync()67        {68            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))69            using (var page =

TargetClosedException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            Console.WriteLine("Hello World!");9        }10    }11}12using PuppeteerSharp;13using System;14using System.Threading.Tasks;15{16    {17        static void Main(string[] args)18        {19            Console.WriteLine("Hello World!");20        }21    }22}23using PuppeteerSharp;24using System;25using System.Threading.Tasks;26{27    {28        static void Main(string[] args)29        {30            Console.WriteLine("Hello World!");31        }32    }33}34using PuppeteerSharp;35using System;36using System.Threading.Tasks;37{38    {39        static void Main(string[] args)40        {41            Console.WriteLine("Hello World!");42        }43    }44}45using PuppeteerSharp;46using System;47using System.Threading.Tasks;48{49    {50        static void Main(string[] args)51        {52            Console.WriteLine("Hello World!");53        }54    }55}56using PuppeteerSharp;57using System;58using System.Threading.Tasks;59{60    {61        static void Main(string[] args)62        {63            Console.WriteLine("Hello World!");64        }65    }66}67using PuppeteerSharp;68using System;69using System.Threading.Tasks;70{71    {72        static void Main(string[] args)73        {74            Console.WriteLine("Hello World!");75        }

TargetClosedException

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using PuppeteerSharp;7{8    {9        static void Main(string[] a

TargetClosedException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            MainAsync(args).Wait();9        }10        static async Task MainAsync(string[] args)11        {12            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });13            var page = await browser.NewPageAsync();14            var newPage = await browser.NewPageAsync();15            {16                await newPage.CloseAsync();17                await page.ScreenshotAsync("google.png");18            }19            catch (TargetClosedException ex)20            {21                Console.WriteLine(ex.Message);22            }23            await browser.CloseAsync();24        }25    }26}27PuppeteerSharp | TargetChangedException.TargetChangedException() Constructor28PuppeteerSharp | TargetChangedException.TargetChangedException(string message) Constructor29PuppeteerSharp | TargetChangedException.TargetChangedException(string message, Exception innerException) Constructor30PuppeteerSharp | TargetChangedException.ToString() method31PuppeteerSharp | TargetChangedException.GetBaseException() method32PuppeteerSharp | TargetChangedException.GetType() method33PuppeteerSharp | TargetChangedException.ToString() method

TargetClosedException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        public static async Task Run()7        {8            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10            }))11            {12                var page = await browser.NewPageAsync();13                var target = page.Target;14                await page.CloseAsync();15                {16                    await target.PageAsync();17                }18                catch (PuppeteerSharp.TargetClosedException e)19                {20                    Console.WriteLine(e.Message);21                }22            }23        }24    }25}

TargetClosedException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            Console.WriteLine("Hello World!");9            MainAsync().GetAwaiter().GetResult();10        }11        static async Task MainAsync()12        {13            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });14            var page = await browser.NewPageAsync();15            var otherPage = await browser.NewPageAsync();16            var otherPageTarget = otherPage.Target;17            await otherPage.CloseAsync();18            {19                await otherPageTarget.PageAsync();20            }21            catch (TargetClosedException ex)22            {23                Console.WriteLine(ex.Message);24            }25            await browser.CloseAsync();26        }27    }28}29PuppeteerSharp.TargetClosedException.TargetClosedException()30PuppeteerSharp.TargetClosedException.TargetClosedException(String)31PuppeteerSharp.TargetClosedException.TargetClosedException(String, Exception)32PuppeteerSharp.TargetClosedException.TargetClosedException(SerializationInfo, StreamingContext)33PuppeteerSharp.TargetClosedException.ToString()

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