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How to use HandleException method of PuppeteerSharp.Page class

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

Page.cs

Source:Page.cs

...1158                    case "Page.loadEventFired":1159                        Load?.Invoke(this, EventArgs.Empty);1160                        break;1161                    case "Runtime.exceptionThrown":1162                        HandleException(e.MessageData.ToObject<RuntimeExceptionThrownResponse>(true).ExceptionDetails);1163                        break;1164                    case "Inspector.targetCrashed":1165                        OnTargetCrashed();1166                        break;1167                    case "Target.attachedToTarget":1168                        await OnAttachedToTargetAsync(e.MessageData.ToObject<TargetAttachedToTargetResponse>(true)).ConfigureAwait(false);1169                        break;1170                    case "Runtime.bindingCalled":1171                        await OnBindingCalled(e.MessageData.ToObject<BindingCalledResponse>(true)).ConfigureAwait(false);1172                        break;1173                }1174            }1175            catch (Exception ex)1176            {1177                var message = $"Page failed to process {e.MessageID}. {ex.Message}. {ex.StackTrace}";1178                Client.Close(message);1179            }1180        }1181        private async Task OnBindingCalled(BindingCalledResponse e)1182        {1183            string expression;1184            try1185            {1186                var result = await ExecuteBinding(e).ConfigureAwait(false);1187                expression = EvaluationString(1188                    @"function deliverResult(name, seq, result) {1189                        window[name]['callbacks'].get(seq).resolve(result);1190                        window[name]['callbacks'].delete(seq);1191                    }",1192                    e.BindingPayload.Name,1193                    e.BindingPayload.Seq,1194                    result);1195            }1196            catch (Exception ex)1197            {1198                if (ex is TargetInvocationException)1199                {1200                    ex = ex.InnerException;1201                }1202                expression = EvaluationString(1203                    @"function deliverError(name, seq, message, stack) {1204                        const error = new Error(message);1205                        error.stack = stack;1206                        window[name]['callbacks'].get(seq).reject(error);1207                        window[name]['callbacks'].delete(seq);1208                    }",1209                    e.BindingPayload.Name,1210                    e.BindingPayload.Seq,1211                    ex.Message,1212                    ex.StackTrace);1213            }1214            Client.Send("Runtime.evaluate", new1215            {1216                expression,1217                contextId = e.ExecutionContextId1218            });1219        }1220        private async Task<object> ExecuteBinding(BindingCalledResponse e)1221        {1222            const string taskResultPropertyName = "Result";1223            object result;1224            var binding = _pageBindings[e.BindingPayload.Name];1225            var methodParams = binding.Method.GetParameters().Select(parameter => parameter.ParameterType).ToArray();1226            var args = e.BindingPayload.Args.Select((token, i) => token.ToObject(methodParams[i])).ToArray();1227            result = binding.DynamicInvoke(args);1228            if (result is Task taskResult)1229            {1230                await taskResult.ConfigureAwait(false);1231                if (taskResult.GetType().IsGenericType)1232                {1233                    // the task is already awaited and therefore the call to property Result will not deadlock1234                    result = taskResult.GetType().GetProperty(taskResultPropertyName).GetValue(taskResult);1235                }1236            }1237            return result;1238        }1239        private async Task OnAttachedToTargetAsync(TargetAttachedToTargetResponse e)1240        {1241            var targetInfo = e.TargetInfo;1242            var sessionId = e.SessionId;1243            if (targetInfo.Type != TargetType.Worker)1244            {1245                try1246                {1247                    await Client.SendAsync("Target.detachFromTarget", new TargetDetachFromTargetRequest1248                    {1249                        SessionId = sessionId1250                    }).ConfigureAwait(false);1251                }1252                catch { }1253                return;1254            }1255        }1256        private void OnTargetCrashed()1257        {1258            if (Error == null)1259            {1260                throw new TargetCrashedException();1261            }1262            Error.Invoke(this, new ErrorEventArgs("Page crashed!"));1263        }1264        private void HandleException(EvaluateExceptionResponseDetails exceptionDetails)1265            => PageError?.Invoke(this, new PageErrorEventArgs(GetExceptionMessage(exceptionDetails)));1266        private string GetExceptionMessage(EvaluateExceptionResponseDetails exceptionDetails)1267        {1268            if (exceptionDetails.Exception != null)1269            {1270                return exceptionDetails.Exception.Description;1271            }1272            var message = exceptionDetails.Text;1273            if (exceptionDetails.StackTrace != null)1274            {1275                foreach (var callframe in exceptionDetails.StackTrace.CallFrames)1276                {1277                    var location = $"{callframe.Url}:{callframe.LineNumber}:{callframe.ColumnNumber}";1278                    var functionName = callframe.FunctionName ?? "<anonymous>";...

HandleException

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            page.SetRequestInterceptionAsync(true);12            page.Request += async (sender, e) =>13            {14                if (e.Request.ResourceType == ResourceType.Image)15                {16                    await e.Request.AbortAsync();17                }18                {19                    await e.Request.ContinueAsync();20                }21            };22            page.SetCacheEnabledAsync(true);23            page.HandleException += async (sender, e) =>24            {25                Console.WriteLine("Error: " + e.Exception.Message);26                await page.ScreenshotAsync("5.png");27            };28            await page.ScreenshotAsync("5.png");29            await browser.CloseAsync();30        }31    }32}

HandleException

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            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            }))12            {13                var page = await browser.NewPageAsync();14                await page.ClickAsync("input[name='q']");15                await page.Keyboard.TypeAsync("Hello World");16                await page.Keyboard.DownAsync("Enter");17                await page.WaitForNavigationAsync();18                await page.ClickAsync("input[name='q']");19                await page.Keyboard.TypeAsync("Hello World");20                await page.Keyboard.DownAsync("Enter");21                await page.WaitForNavigationAsync();22                await page.ClickAsync("input[name='q']");23                await page.Keyboard.TypeAsync("Hello World");24                await page.Keyboard.DownAsync("Enter");25                await page.WaitForNavigationAsync();26                await page.ClickAsync("input[name='q']");27                await page.Keyboard.TypeAsync("Hello World");28                await page.Keyboard.DownAsync("Enter");29                await page.WaitForNavigationAsync();30                await page.ClickAsync("input[name='q']");31                await page.Keyboard.TypeAsync("Hello World");32                await page.Keyboard.DownAsync("Enter");33                await page.WaitForNavigationAsync();34                await page.ClickAsync("input[name='q']");35                await page.Keyboard.TypeAsync("Hello World");36                await page.Keyboard.DownAsync("Enter");37                await page.WaitForNavigationAsync();38                await page.ClickAsync("input[name='q']");39                await page.Keyboard.TypeAsync("Hello World");40                await page.Keyboard.DownAsync("Enter");41                await page.WaitForNavigationAsync();42                await page.ClickAsync("input[name='q']");43                await page.Keyboard.TypeAsync("Hello World");44                await page.Keyboard.DownAsync("Enter");45                await page.WaitForNavigationAsync();

HandleException

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    Args = new string[] { "--no-sandbox" }4});5var page = await browser.NewPageAsync();6await page.HandleExceptionAsync((ex) =>7{8    Console.WriteLine(ex.Message);9    return Task.CompletedTask;10});11await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");12await browser.CloseAsync();13await page.HandleExceptionAsync((ex) =>14{15    Console.WriteLine(ex.Message);16    return Task.CompletedTask;17});18await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");19await browser.CloseAsync();20var browser = await Puppeteer.LaunchAsync(new LaunchOptions21{22    Args = new string[] { "--no-sandbox" }23});24var page = await browser.NewPageAsync();25await page.HandleExceptionAsync((ex) =>26{27    Console.WriteLine(ex.Message);28    return Task.CompletedTask;29});30await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");31await browser.CloseAsync();32await page.HandleExceptionAsync((ex) =>33{34    Console.WriteLine(ex.Message);35    return Task.CompletedTask;36});37await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");38await browser.CloseAsync();39var browser = await Puppeteer.LaunchAsync(new LaunchOptions40{41    Args = new string[] { "--no-sandbox" }42});43var page = await browser.NewPageAsync();44await page.HandleExceptionAsync((ex) =>45{46    Console.WriteLine(ex.Message);47    return Task.CompletedTask;48});49await page.EvaluateFunctionAsync("() => { throw

HandleException

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            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);13            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))14            {15                using (var page = await browser.NewPageAsync())16                {17                    page.SetRequestInterceptionAsync(true).Wait();18                    page.Request += Page_Request;19                }20            }21        }22        private static void Page_Request(object sender, RequestEventArgs e)23        {24            {25                var page = (Page)sender;26                page.HandleExceptionAsync(e.Request, new Exception("Error")).Wait();27            }28            catch (Exception ex)29            {30                Console.WriteLine(ex.Message);31            }32        }33    }34}

HandleException

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            MainAsync().Wait();9        }10        static async Task MainAsync()11        {12            {13            };14            using (var browser = await Puppeteer.LaunchAsync(options))15            {16                var page = await browser.NewPageAsync();17                await page.WaitForSelectorAsync("input[name=q]");18                await page.TypeAsync("input[name=q]", "PuppeteerSharp");19                await page.WaitForNavigationAsync();20                await page.WaitForSelectorAsync("h3");21                var title = await page.GetTitleAsync();22                Console.WriteLine(title);23            }24        }25    }26}

HandleException

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;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 LaunchOptions14            {15            });16            var page = await browser.NewPageAsync();17            page.HandleException += (sender, e) =>18            {19                Console.WriteLine("Exception occured in the page: " + e.Exception);20            };21            await page.EvaluateExpressionAsync("notexistingfunction()");22            await browser.CloseAsync();23        }24    }25}26at ExecutionContext.<anonymous> (eval at <anonymous>, <anonymous>:1:5)27at ExecutionContext.evaluateHandle (C:\Users\puppeteersharp\source\repos\PuppeteerSharp_Samples\PuppeteerSharp_Samples\bin\Debug28at ExecutionContext.evaluate (C:\Users\puppeteersharp\source\repos\PuppeteerSharp_Samples\PuppeteerSharp_Samples\bin\Debug29at Page.evaluateOnNewDocument (C:\Users\puppeteersharp\source\repos\PuppeteerSharp_Samples\PuppeteerSharp_Samples\bin\Debug30at Page.<>c__DisplayClass45_0.<SetContentAsync>b__0 (C:\Users\puppeteersharp\source\repos\PuppeteerSharp_Samples\PuppeteerSharp_Samples\bin\Debug31at Task.WhenAll (System.Threading.Tasks.Task[] tasks)32at Page.SetContentAsync (C:\Users\puppeteersharp\source\repos\PuppeteerSharp_Samples\PuppeteerSharp_Samples\bin\Debug

HandleException

Using AI Code Generation

1await page.HandleException((ex) => {2    Console.WriteLine("Exception occurred: " + ex.Message);3    return true;4});5await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");6await page.CloseAsync();7await page.HandleExceptionAsync(async (ex) => {8    Console.WriteLine("Exception occurred: " + ex.Message);9    return true;10});11await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");12await page.CloseAsync();13await page.OnErrorAsync(async (ex) => {14    Console.WriteLine("Exception occurred: " + ex.Message);15});16await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");17await page.CloseAsync();18await page.OnError((ex) => {19    Console.WriteLine("Exception occurred: " + ex.Message);20});21await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");22await page.CloseAsync();23await page.OnError((ex) => {24    Console.WriteLine("Exception occurred: " + ex.Message);25});26await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");27await page.CloseAsync();28await page.OnError((ex) => {29    Console.WriteLine("Exception occurred: " + ex.Message);30});31await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }");32await page.CloseAsync();33await page.OnError((ex) => {34    Console.WriteLine("Exception occurred: " + ex.Message);35});36await page.EvaluateFunctionAsync("() => { throw new Error('Error in page'); }

HandleException

Using AI Code Generation

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            page.SetViewportAsync(new ViewPortOptions { Width = 1366, Height = 768 });13            await page.WaitForSelectorAsync("input[title='Search']");14            await page.TypeAsync("input[title='Search']", "PuppeteerSharp");15            await page.WaitForSelectorAsync("input[value='Google Search']");16            page.HandleException += Page_HandleException;17            await page.ClickAsync("input[value='Google Search']");18            await page.WaitForSelectorAsync("input[value='I'm Feeling Lucky']");19            await page.ClickAsync("input[value='I'm Feeling Lucky']");20            await browser.CloseAsync();21        }22        private static void Page_HandleException(object sender, PageExceptionEventArgs e)23        {24            Console.WriteLine("Exception in browser context: " + e.Exception.Message);25        }26    }27}28using System;29using System.Threading.Tasks;30using PuppeteerSharp;31{32    {33        static async Task Main(string[] args)34        {35            var browser = await Puppeteer.LaunchAsync(new LaunchOptions36            {37            });38            var page = await browser.NewPageAsync();39            page.SetViewportAsync(new ViewPortOptions { Width = 1366, Height = 768

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