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How to use OnRequest method of PuppeteerSharp.LifecycleWatcher class

Best Puppeteer-sharp code snippet using PuppeteerSharp.LifecycleWatcher.OnRequest

LifecycleWatcher.cs

Source:LifecycleWatcher.cs

...51            _terminationTaskWrapper = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);52            frameManager.LifecycleEvent += FrameManager_LifecycleEvent;53            frameManager.FrameNavigatedWithinDocument += NavigatedWithinDocument;54            frameManager.FrameDetached += OnFrameDetached;55            frameManager.NetworkManager.Request += OnRequest;56            frameManager.Client.Disconnected += OnClientDisconnected;57            CheckLifecycleComplete();58        }59        #region Properties60        public Task<Task> NavigationTask { get; internal set; }61        public Task<bool> SameDocumentNavigationTask => _sameDocumentNavigationTaskWrapper.Task;62        public Task<bool> NewDocumentNavigationTask => _newDocumentNavigationTaskWrapper.Task;63        public Response NavigationResponse => _navigationRequest?.Response;64        public Task TimeoutOrTerminationTask65            => _terminationTaskWrapper.Task.WithTimeout(_timeout);66        public Task LifecycleTask => _lifecycleTaskWrapper.Task;67        #endregion68        #region Private methods69        private void OnClientDisconnected(object sender, EventArgs e)70            => Terminate(new TargetClosedException("Navigation failed because browser has disconnected!", _frameManager.Client.CloseReason));71        void FrameManager_LifecycleEvent(object sender, FrameEventArgs e) => CheckLifecycleComplete();7273        private void OnFrameDetached(object sender, FrameEventArgs e)74        {75            var frame = e.Frame;76            if (_frame == frame)77            {78                Terminate(new PuppeteerException("Navigating frame was detached"));79                return;80            }81            CheckLifecycleComplete();82        }83        private void CheckLifecycleComplete()84        {85            // We expect navigation to commit.86            if (!CheckLifecycle(_frame, _expectedLifecycle))87            {88                return;89            }90            _lifecycleTaskWrapper.TrySetResult(true);91            if (_frame.LoaderId == _initialLoaderId && !_hasSameDocumentNavigation)92            {93                return;94            }95            if (_hasSameDocumentNavigation)96            {97                _sameDocumentNavigationTaskWrapper.TrySetResult(true);98            }99            if (_frame.LoaderId != _initialLoaderId)100            {101                _newDocumentNavigationTaskWrapper.TrySetResult(true);102            }103        }104        private void Terminate(PuppeteerException ex) => _terminationTaskWrapper.TrySetException(ex);105        private void OnRequest(object sender, RequestEventArgs e)106        {107            if (e.Request.Frame != _frame || !e.Request.IsNavigationRequest)108            {109                return;110            }111            _navigationRequest = e.Request;112        }113        private void NavigatedWithinDocument(object sender, FrameEventArgs e)114        {115            if (e.Frame != _frame)116            {117                return;118            }119            _hasSameDocumentNavigation = true;120            CheckLifecycleComplete();121        }122        private bool CheckLifecycle(Frame frame, IEnumerable<string> expectedLifecycle)123        {124            foreach (var item in expectedLifecycle)125            {126                if (!frame.LifecycleEvents.Contains(item))127                {128                    return false;129                }130            }131            foreach (var child in frame.ChildFrames)132            {133                if (!CheckLifecycle(child, expectedLifecycle))134                {135                    return false;136                }137            }138            return true;139        }140        public void Dispose() => Dispose(true);141        ~LifecycleWatcher() => Dispose(false);142        public void Dispose(bool disposing)143        {144            _frameManager.LifecycleEvent -= FrameManager_LifecycleEvent;145            _frameManager.FrameNavigatedWithinDocument -= NavigatedWithinDocument;146            _frameManager.FrameDetached -= OnFrameDetached;147            _frameManager.NetworkManager.Request -= OnRequest;148            _frameManager.Client.Disconnected -= OnClientDisconnected;149        }150        #endregion151    }152}...

OnRequest

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            using (var page = await browser.NewPageAsync())11            {12                var watcher = page.WaitForRequestAsync("**/*");13                watcher.OnRequest(async (request) =>14                {15                    Console.WriteLine("Request: " + request.Url);16                });17                await watcher;18            }19        }20    }21}

OnRequest

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            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);13            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });14            var page = await browser.NewPageAsync();15            await page.WaitForNavigationAsync();16            await page.ScreenshotAsync("google.png");17            await browser.CloseAsync();18        }

OnRequest

Using AI Code Generation

1using System.Threading.Tasks;2using PuppeteerSharp;3{4    {5        static async Task Main(string[] args)6        {7            await new BrowserFetcher().DownloadAsync();8            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }))9            using (var page = await browser.NewPageAsync())10            {11                await page.WaitForSelectorAsync("input[title='Search']");12                await page.TypeAsync("input[title='Search']", "puppeteer-sharp");13                await page.ClickAsync("input[value='Google Search']");14                await page.WaitForNavigationAsync();15                await page.ScreenshotAsync("screenshot.png");16            }17        }18    }19}

OnRequest

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            new Program().MainAsync().Wait();9        }10        public async Task MainAsync()11        {12            {13                Args = new string[] {14                }15            };16            var browser = await Puppeteer.LaunchAsync(options);17            var page = await browser.NewPageAsync();18            var watcher = page.LifecycleWatcher;19            watcher.OnRequest += (sender, e) =>20            {21                Console.WriteLine("OnRequest");22            };23            page.Console += (sender, e) =>24            {25                Console.WriteLine("OnConsole");26            };27            await page.EvaluateExpressionAsync("console.log('Hello world!')");28            page.RequestFinished += (sender, e) =>29            {30                Console.WriteLine("OnRequestFinished");31            };32            page.ResponseReceived += (sender, e) =>33            {34                Console.WriteLine("OnResponseReceived");35            };36            page.TargetCreated += (sender, e) =>37            {38                Console.WriteLine("OnTarget

OnRequest

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            await page.WaitForSelectorAsync("p");13            var text = await page.EvaluateExpressionAsync<string>("document.querySelector('p').textContent");14            Console.WriteLine(text);15            await browser.CloseAsync();16        }17    }18}

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