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How to use OnExecutionContextCreated method of PuppeteerSharp.Worker class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Worker.OnExecutionContextCreated

Worker.cs

Source:Worker.cs

...57            {58                switch (e.MessageID)59                {60                    case "Runtime.executionContextCreated":61                        OnExecutionContextCreated(e.MessageData.ToObject<RuntimeExecutionContextCreatedResponse>(true));62                        break;63                    //case "Runtime.consoleAPICalled":64                    //    await OnConsoleAPICalled(e).ConfigureAwait(false);65                    //    break;66                    case "Runtime.exceptionThrown":67                        OnExceptionThrown(e.MessageData.ToObject<RuntimeExceptionThrownResponse>(true));68                        break;69                }70            }71            catch (Exception ex)72            {73                var message = $"Worker failed to process {e.MessageID}. {ex.Message}. {ex.StackTrace}";74                _client.Close(message);75            }76        }77        private void OnExceptionThrown(RuntimeExceptionThrownResponse e) => _exceptionThrown(e.ExceptionDetails);78        private void OnExecutionContextCreated(RuntimeExecutionContextCreatedResponse e)79        {80            if (_jsHandleFactory == null)81            {82                _jsHandleFactory = (ctx, remoteObject) => new JSHandle(ctx, _client, remoteObject);83                _executionContext = new ExecutionContext(84                    _client,85                    e.Context,86                    null);87                _executionContextCallback.TrySetResult(_executionContext);88            }89        }90    }91}...

OnExecutionContextCreated

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                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"11            });12            var page = await browser.NewPageAsync();13            await page.WaitForFunctionAsync("() => !!window.worker");14            var worker = page.Workers[0];15            worker.OnMessage += (sender, e) =>16            {17                Console.WriteLine(e.Data);18            };19            worker.OnConsole += (sender, e) =>20            {21                Console.WriteLine(e.Text);22            };23            worker.OnError += (sender, e) =>24            {25                Console.WriteLine(e.Message);26            };27            await worker.EvaluateFunctionAsync("() => postMessage('hello')");28            await page.EvaluateFunctionAsync("() => window.worker.postMessage('hello')");29            await page.EvaluateFunctionAsync("() => window.worker.postMessage({foo: 'bar'})");30            await page.EvaluateFunctionAsync("() => window.worker.postMessage([1, 2, 3, 4])");31            await page.EvaluateFunctionAsync("() => window.worker.postMessage(5)");32            await page.EvaluateFunctionAsync("() => window.worker.postMessage(null)");33            await page.EvaluateFunctionAsync("() => window.worker.postMessage(undefined)");34            await page.EvaluateFunctionAsync("() => window.worker.postMessage(true)");35            await page.EvaluateFunctionAsync("() => window.worker.postMessage(false)");36            await page.EvaluateFunctionAsync("() => window.worker.postMessage(() => 1 + 1)");37            await page.EvaluateFunctionAsync("() => window.worker.postMessage(Symbol('foo'))");38            await page.EvaluateFunctionAsync("() => window.worker.postMessage(new Date())");39            await page.EvaluateFunctionAsync("() => window.worker.postMessage(new Error('foo'))");40            await page.EvaluateFunctionAsync("() => window.worker.postMessage(new RegExp('foo.*bar'))");41            await page.EvaluateFunctionAsync("() => window.worker.postMessage(new Int8Array([1, 2, 3]))");42            await page.EvaluateFunctionAsync("() => window.worker.postMessage(new Uint8Array([1, 2

OnExecutionContextCreated

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 LaunchOptions { Headless = false });9            var page = await browser.NewPageAsync();10            page.WorkerCreated += Page_WorkerCreated;11            await page.WaitForSelectorAsync("input[name='q']");12            await page.TypeAsync("input[name='q']", "puppeteer");13            await page.Keyboard.PressAsync("Enter");14            await page.WaitForNavigationAsync();15            await page.WaitForSelectorAsync("a[href='/puppeteer/']");16            await page.ClickAsync("a[href='/puppeteer/']");17            await page.WaitForNavigationAsync();18            await page.WaitForSelectorAsync("a[href='

OnExecutionContextCreated

Using AI Code Generation

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            {13                Args = new string[] { "--no-sandbox" }14            };15            using (var browser = await Puppeteer.LaunchAsync(options))16            {17                var page = await browser.NewPageAsync();18                await page.EvaluateExpressionAsync("() =>{new Worker(URL.createObjectURL(new Blob(['console.log(1)'], {type: 'application/javascript'})))}");19            }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            {35                Args = new string[] { "--no-sandbox" }36            };37            using (var browser = await Puppeteer.LaunchAsync(options))38            {39                var page = await browser.NewPageAsync();40                await page.EvaluateExpressionAsync("() =>{new Worker(URL.createObjectURL(new Blob(['console.log(1)'], {type: 'application/javascript'})))}");41            }42        }43    }44}45using System;46using System.Threading.Tasks;47using PuppeteerSharp;48{49    {50        static void Main(string[] args)51        {52            MainAsync().GetAwaiter().GetResult();53        }54        static async Task MainAsync()55        {56            {57                Args = new string[] { "--no-sandbox" }58            };59            using (var browser = await Puppeteer.LaunchAsync(options))60            {

OnExecutionContextCreated

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            MainAsync(args).GetAwaiter().GetResult();9        }10        static async Task MainAsync(string[] args)11        {12            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);13            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))14            using (var page = await browser.NewPageAsync())15            {16                page.WorkerCreated += async (sender, e) =>17                {18                    Console.WriteLine("Worker created");19                    Console.WriteLine("Worker url: " + e.Worker.Url);20                    Console.WriteLine("Worker type: " + e.Worker.Type);21                    var worker = e.Worker;22                    worker.ExecutionContextCreated += (sender2, e2) =>23                    {24                        Console.WriteLine("Worker execution context created");25                        Console.WriteLine("Worker execution context url: " + e2.ExecutionContext.Url);26                    };27                };28            }29        }30    }31}

OnExecutionContextCreated

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            {9            };10            using (var browser = await Puppeteer.LaunchAsync(launchOptions))11            {12                var page = await browser.NewPageAsync();13                page.WorkerCreated += async (sender, e) =>14                {15                    Console.WriteLine("Worker Created");16                    await e.Worker.EvaluateFunctionAsync("() => console.log('hello from worker')");17                };18                await page.EvaluateFunctionAsync("() => new Worker(URL.createObjectURL(new Blob(['console.log(1)'], {type: 'application/javascript'})))");19            }20        }21    }22}

OnExecutionContextCreated

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using System.IO;5using System.Text;6using System.Threading;7{8    {9        static async Task Main(string[] args)10        {11            {12                Args = new[] { "--no-sandbox" }13            };14            using (var browser = await Puppeteer.LaunchAsync(options))15            {16                var page = await browser.NewPageAsync();17                page.Console += (sender, e) => Console.WriteLine(e.Message.Text);18                page.WorkerCreated += (sender, e) => Console.WriteLine($"Worker created: {e.Worker.Url}");19                page.WorkerDestroyed += (sender, e) => Console.WriteLine($"Worker destroyed: {e.Worker.Url}");20                var worker = await page.EvaluateFunctionHandleAsync<Worker>("() => new Worker(URL.createObjectURL(new Blob(['console.log(1);'], {type: 'application/javascript'})))");21                worker.ExecutionContextCreated += (sender, e) => Console.WriteLine($"Worker execution context created: {e.ExecutionContext.Id}");22                await worker.EvaluateExpressionAsync("console.log(2)");23                await Task.Delay(3000);24            }25        }26    }27}

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