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How to use MessageException method of PuppeteerSharp.MessageException class

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

CDPSession.cs

Source:CDPSession.cs

...136            catch (Exception ex)137            {138                if (waitForCallback && _callbacks.TryRemove(id, out _))139                {140                    callback.TaskWrapper.TrySetException(new MessageException(ex.Message, ex));141                }142            }143            return waitForCallback ? await callback.TaskWrapper.Task.ConfigureAwait(false) : null;144        }145        /// <summary>146        /// Detaches session from target. Once detached, session won't emit any events and can't be used to send messages.147        /// </summary>148        /// <returns></returns>149        /// <exception cref="T:PuppeteerSharp.PuppeteerException"></exception>150        public Task DetachAsync()151        {152            if (Connection == null)153            {154                throw new PuppeteerException($"Session already detached.Most likely the {TargetType} has been closed.");155            }156            return Connection.SendAsync("Target.detachFromTarget", new TargetDetachFromTargetRequest157            {158                SessionId = SessionId159            });160        }161        internal bool HasPendingCallbacks() => _callbacks.Count != 0;162        #endregion163        #region Private Methods164        internal void OnMessage(ConnectionResponse obj)165        {166            var id = obj.Id;167            if (id.HasValue && _callbacks.TryRemove(id.Value, out var callback))168            {169                if (obj.Error != null)170                {171                    callback.TaskWrapper.TrySetException(new MessageException(callback, obj.Error));172                }173                else174                {175                    callback.TaskWrapper.TrySetResult(obj.Result);176                }177            }178            else179            {180                var method = obj.Method;181                var param = obj.Params?.ToObject<ConnectionResponseParams>();182                MessageReceived?.Invoke(this, new MessageEventArgs183                {184                    MessageID = method,185                    MessageData = obj.Params...

BrowserActor.cs

Source:BrowserActor.cs

...95                        }96                        else if (exception is EvaluationFailedException)97                        {98                        }99                        else if (exception is MessageException)100                        {101                        }102                        else if (exception is NavigationException) // Couldn't Navigate to url. Or Browser was disconnected //Target.detachedFromTarget103                        {104                            return Directive.Restart;105                        }106                        else if (exception is SelectorException)107                        {108                        }109                        else if (exception is TargetClosedException) // Page was closed110                        {111                            return Directive.Restart;112                        }113                    }...

FileChooserAcceptTests.cs

Source:FileChooserAcceptTests.cs

...86            var waitForTask = Page.WaitForFileChooserAsync();87            await Task.WhenAll(88                waitForTask,89                Page.ClickAsync("input"));90            var ex = await Assert.ThrowsAsync<MessageException>(() => waitForTask.Result.AcceptAsync(91                "./assets/file-to-upload.txt",92                "./assets/pptr.png"));93        }94        [Fact]95        public async Task ShouldFailWhenAcceptingFileChooserTwice()96        {97            await Page.SetContentAsync("<input type=file>");98            var waitForTask = Page.WaitForFileChooserAsync();99            await Task.WhenAll(100                waitForTask,101                Page.ClickAsync("input"));102            var fileChooser = waitForTask.Result;103            await fileChooser.AcceptAsync();104            var ex = await Assert.ThrowsAsync<PuppeteerException>(() => waitForTask.Result.AcceptAsync());...

CreateCDPSessionTests.cs

Source:CreateCDPSessionTests.cs

...82        public async Task ShouldThrowNiceErrors()83        {84            var client = await Page.Target.CreateCDPSessionAsync();85            async Task TheSourceOfTheProblems() => await client.SendAsync("ThisCommand.DoesNotExist");86            var exception = await Assert.ThrowsAsync<MessageException>(async () =>87            {88                await TheSourceOfTheProblems();89            });90            Assert.Contains("TheSourceOfTheProblems", exception.StackTrace);91            Assert.Contains("ThisCommand.DoesNotExist", exception.Message);92        }93    }94}...

AsyncMessageQueue.cs

Source:AsyncMessageQueue.cs

...84        private static void HandleAsyncMessage(MessageTask callback, ConnectionResponse obj)85        {86            if (obj.Error != null)87            {88                callback.TaskWrapper.TrySetException(new MessageException(callback, obj.Error));89            }90            else91            {92                callback.TaskWrapper.TrySetResult(obj.Result);93            }94        }95    }96}...

MessageException.cs

Source:MessageException.cs

...5{6    /// <summary>7    /// Exception thrown by <seealso cref="CDPSession.SendAsync(string, object)"/>8    /// </summary>9    public class MessageException : PuppeteerException10    {11        /// <summary>12        /// Initializes a new instance of the <see cref="MessageException"/> class.13        /// </summary>14        /// <param name="message">Message.</param>15        public MessageException(string message) : base(message)16        {17        }18        /// <summary>19        /// Initializes a new instance of the <see cref="MessageException"/> class.20        /// </summary>21        /// <param name="message">Message.</param>22        /// <param name="innerException">Inner exception.</param>23        public MessageException(string message, Exception innerException) : base(message, innerException)24        {25        }26        internal MessageException(MessageTask callback, ConnectionError error) : base(GetCallbackMessage(callback, error))27        {28        }29        internal static string GetCallbackMessage(MessageTask callback, ConnectionError connectionError)30        {31            var message = $"Protocol error ({callback.Method}): {connectionError.Message}";32            if (!string.IsNullOrEmpty(connectionError.Data))33            {34                message += $" {connectionError.Data}";35            }36            return !string.IsNullOrEmpty(connectionError.Message) ? RewriteErrorMeesage(message) : string.Empty;37        }38    }39}...

JsonValueTests.cs

Source:JsonValueTests.cs

...27        [Fact]28        public async Task ShouldThrowForCircularObjects()29        {30            var windowHandle = await Page.EvaluateExpressionHandleAsync("window");31            var exception = await Assert.ThrowsAsync<MessageException>(()32                => windowHandle.JsonValueAsync());33            Assert.Contains("Object reference chain is too long", exception.Message);34        }35    }36}...

ConnectionTests.cs

Source:ConnectionTests.cs

...1415        [Fact]16        public async Task ShouldThrowNiceErrors()17        {18            var exception = await Assert.ThrowsAsync<MessageException>(async () =>19            {20                await TheSourceOfTheProblems();21            });22            Assert.Contains("TheSourceOfTheProblems", exception.StackTrace);23            Assert.Contains("ThisCommand.DoesNotExist", exception.Message);24        }2526        private async Task TheSourceOfTheProblems()27        {28            await Page.Client.SendAsync("ThisCommand.DoesNotExist");29        }30    }31}

MessageException

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 LaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            {12            }13            catch (MessageException ex)14            {15                Console.WriteLine(ex.Message);16            }17            await browser.CloseAsync();18        }19    }20}21PuppeteerSharp | BrowserFetcher.DownloadAsync()22PuppeteerSharp | BrowserFetcher.RevisionInfo()23PuppeteerSharp | BrowserFetcher.LocalRevisions()24PuppeteerSharp | BrowserFetcher.CanDownloadAsync()25PuppeteerSharp | BrowserFetcher.DownloadAsync()26PuppeteerSharp | BrowserFetcher.LocalRevisions()27PuppeteerSharp | BrowserFetcher.RevisionInfo()28PuppeteerSharp | BrowserFetcher.CanDownloadAsync()29PuppeteerSharp | BrowserFetcher.LocalRevisions()30PuppeteerSharp | BrowserFetcher.RevisionInfo()31PuppeteerSharp | BrowserFetcher.CanDownloadAsync()32PuppeteerSharp | BrowserFetcher.DownloadAsync()33PuppeteerSharp | BrowserFetcher.LocalRevisions()34PuppeteerSharp | BrowserFetcher.RevisionInfo()

MessageException

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 LaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            await page.ClickAsync("input[name='q']");12            await page.Keyboard.TypeAsync("PuppeteerSharp");13            await page.Keyboard.PressAsync("Enter");14            await page.WaitForSelectorAsync("h3");15            await page.ScreenshotAsync("screenshot.png");16            await browser.CloseAsync();17        }18    }19}20at PuppeteerSharp.ExecutionContext.EvaluateFunctionHandleAsync(String script, Object[] args) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\ExecutionContext.cs:line 10921at PuppeteerSharp.Page.WaitForSelectorAsync(String selector, WaitForSelectorOptions options) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\Page.cs:line 117022at PuppeteerSharp_Demo.Program.Main(String[] args) in C:\Users\paul\source\repos\PuppeteerSharp_Demo\2.cs:line 2323at PuppeteerSharp.ExecutionContext.EvaluateFunctionHandleAsync(String script, Object[] args) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\ExecutionContext.cs:line 10924at PuppeteerSharp.Page.WaitForSelectorAsync(String selector, WaitForSelectorOptions options) in C:\projects\puppeteer-sharp\lib\PuppeteerSharp\Page.cs:line 117025at PuppeteerSharp_Demo.Program.Main(String[] args) in C:\Users\paul\source\repos\PuppeteerSharp_Demo\2.cs:line 23

MessageException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;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            page.SetRequestInterceptionAsync(true);14            page.Request += async (sender, e) =>15            {16                {17                    await e.Request.RespondAsync(new ResponseData18                    {19                    });20                }21                {22                    await e.Request.ContinueAsync();23                }24            };25            {26            }27            catch (MessageException ex)28            {29                Console.WriteLine(ex.Message);30            }31            await browser.CloseAsync();32        }33    }34}

MessageException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            {9            };10            var browser = await Puppeteer.LaunchAsync(options);11            var page = await browser.NewPageAsync();12            await page.WaitForSelectorAsync("input[name='q']");13            await page.TypeAsync("input[name='q']", "PuppeteerSharp");14            await page.Keyboard.PressAsync("Enter");15            await page.WaitForNavigationAsync();16            var title = await page.GetTitleAsync();17            Console.WriteLine(title);18            await browser.CloseAsync();19        }20    }21}

MessageException

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            var browser = await Puppeteer.LaunchAsync(options);10            var page = await browser.NewPageAsync();11            {12                await page.ClickAsync("input[name='q']");13                await page.Keyboard.DownAsync("Shift");14                await page.Keyboard.TypeAsync("puppeteer");15                await page.Keyboard.UpAsync("Shift");16            }17            catch (MessageException ex)18            {19                Console.WriteLine(ex.Message);20            }21            await page.ScreenshotAsync("2.png");22            await browser.CloseAsync();23        }24    }25}26using PuppeteerSharp;27using System;28using System.Threading.Tasks;29{30    {31        static async Task Main(string[] args)32        {33            var options = new LaunchOptions { Headless = false };34            var browser = await Puppeteer.LaunchAsync(options);35            var page = await browser.NewPageAsync();36            {37                await page.ClickAsync("input[name='q']");38                await page.Keyboard.DownAsync("Shift");39                await page.Keyboard.TypeAsync("puppeteer");40                await page.Keyboard.UpAsync("Shift");41            }42            catch (MessageException ex)43            {44                Console.WriteLine(ex.Message);45            }46            await page.ScreenshotAsync("3.png");47            await browser.CloseAsync();48        }49    }50}51using PuppeteerSharp;52using System;53using System.Threading.Tasks;54{55    {56        static async Task Main(string[] args)57        {58            var options = new LaunchOptions { Headless = false };59            var browser = await Puppeteer.LaunchAsync(options);60            var page = await browser.NewPageAsync();61            {

MessageException

Using AI Code Generation

1var browserFetcher = new BrowserFetcher();2await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions4{5    ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)6});7var page = await browser.NewPageAsync();8{9}10catch (Exception e)11{12    Console.WriteLine(e.Message);13}14await browser.CloseAsync();

MessageException

Using AI Code Generation

1public static void Main(string[] args)2{3    var exception = new MessageException("Custom message");4    Console.WriteLine(exception.Message);5}6public static void Main(string[] args)7{8    var exception = new MessageException("Custom message", new Exception("Inner exception"));9    Console.WriteLine(exception.Message);10    Console.WriteLine(exception.InnerException.Message);11}12public static void Main(string[] args)13{14    var exception = new MessageException("Custom message", new Exception("Inner exception"), "Custom stack trace");15    Console.WriteLine(exception.Message);16    Console.WriteLine(exception.InnerException.Message);17    Console.WriteLine(exception.StackTrace);18}19public static void Main(string[] args)20{21    var exception = new MessageException("Custom message", new Exception("Inner exception"), "Custom stack trace");22    Console.WriteLine(exception.Message);23    Console.WriteLine(exception.InnerException.Message);24    Console.WriteLine(exception.StackTrace);25}26public static void Main(string[] args)27{28    var exception = new MessageException("Custom message", new Exception("Inner exception"), "Custom stack trace");29    Console.WriteLine(exception.Message);30    Console.WriteLine(exception.InnerException.Message);31    Console.WriteLine(exception.StackTrace);32}

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