Best Puppeteer-sharp code snippet using PuppeteerSharp.NetworkManager.PatchRequestEventHeaders
NetworkManager.cs
Source:NetworkManager.cs  
...343                requestWillBeSentEvent = null;344            }345            if (requestWillBeSentEvent != null)346            {347                PatchRequestEventHeaders(requestWillBeSentEvent, e);348                await OnRequestAsync(requestWillBeSentEvent, e.RequestId).ConfigureAwait(false);349            }350            else351            {352                _networkEventManager.StoreRequestPaused(e.NetworkId, e);353            }354        }355        private async Task OnRequestAsync(RequestWillBeSentPayload e, string fetchRequestId)356        {357            Request request;358            var redirectChain = new List<Request>();359            if (e.RedirectResponse != null)360            {361                ResponseReceivedExtraInfoResponse redirectResponseExtraInfo = null;362                if (e.RedirectHasExtraInfo)363                {364                    redirectResponseExtraInfo = _networkEventManager.ShiftResponseExtraInfo(e.RequestId);365                    if (redirectResponseExtraInfo == null)366                    {367                        _networkEventManager.QueueRedirectInfo(e.RequestId, new()368                        {369                            Event = e,370                            FetchRequestId = fetchRequestId,371                        });372                        return;373                    }374                }375                request = _networkEventManager.GetRequest(e.RequestId);376                // If we connect late to the target, we could have missed the requestWillBeSent event.377                if (request != null)378                {379                    HandleRequestRedirect(request, e.RedirectResponse, redirectResponseExtraInfo);380                    redirectChain = request.RedirectChainList;381                }382            }383            var frame = !string.IsNullOrEmpty(e.FrameId) ? await FrameManager.TryGetFrameAsync(e.FrameId).ConfigureAwait(false) : null;384            request = new Request(385                _client,386                frame,387                fetchRequestId,388                _userRequestInterceptionEnabled,389                e,390                redirectChain);391            _networkEventManager.StoreRequest(e.RequestId, request);392            Request?.Invoke(this, new RequestEventArgs393            {394                Request = request395            });396        }397        private void OnRequestServedFromCache(RequestServedFromCacheResponse response)398        {399            var request = _networkEventManager.GetRequest(response.RequestId);400            if (request != null)401            {402                request.FromMemoryCache = true;403            }404            RequestServedFromCache?.Invoke(this, new RequestEventArgs { Request = request });405        }406        private void HandleRequestRedirect(Request request, ResponsePayload responseMessage, ResponseReceivedExtraInfoResponse extraInfo)407        {408            var response = new Response(409                _client,410                request,411                responseMessage,412                extraInfo);413            request.Response = response;414            request.RedirectChainList.Add(request);415            response.BodyLoadedTaskWrapper.TrySetException(416                new PuppeteerException("Response body is unavailable for redirect responses"));417            ForgetRequest(request, false);418            Response?.Invoke(this, new ResponseCreatedEventArgs419            {420                Response = response421            });422            RequestFinished?.Invoke(this, new RequestEventArgs423            {424                Request = request425            });426        }427        private async Task OnRequestWillBeSentAsync(RequestWillBeSentPayload e)428        {429            // Request interception doesn't happen for data URLs with Network Service.430            if (_userRequestInterceptionEnabled && !e.Request.Url.StartsWith("data:", StringComparison.InvariantCultureIgnoreCase))431            {432                _networkEventManager.StoreRequestWillBeSent(e.RequestId, e);433                var requestPausedEvent = _networkEventManager.GetRequestPaused(e.RequestId);434                if (requestPausedEvent != null)435                {436                    var fetchRequestId = requestPausedEvent.RequestId;437                    PatchRequestEventHeaders(e, requestPausedEvent);438                    await OnRequestAsync(e, fetchRequestId).ConfigureAwait(false);439                    _networkEventManager.ForgetRequestPaused(e.RequestId);440                }441                return;442            }443            await OnRequestAsync(e, null).ConfigureAwait(false);444        }445        private void PatchRequestEventHeaders(RequestWillBeSentPayload requestWillBeSentEvent, FetchRequestPausedResponse requestPausedEvent)446        {447            foreach (var kv in requestPausedEvent.Request.Headers)448            {449                requestWillBeSentEvent.Request.Headers[kv.Key] = kv.Value;450            }451        }452        private async Task UpdateProtocolRequestInterceptionAsync()453        {454            var enabled = _userRequestInterceptionEnabled || _credentials != null;455            if (enabled == _protocolRequestInterceptionEnabled)456            {457                return;458            }459            _protocolRequestInterceptionEnabled = enabled;...PatchRequestEventHeaders
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                Args = new string[] { "--disable-web-security" }11            });12            var page = await browser.NewPageAsync();13            await page.WaitForNavigationAsync(new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation.Networkidle0 } });14            await page.PatchRequestEventHeadersAsync(new Dictionary<string, string> { { "User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36" } });15            await page.WaitForNavigationAsync(new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation.Networkidle0 } });16            await page.PatchRequestEventHeadersAsync(new Dictionary<string, string> { { "User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36" } });17            await browser.CloseAsync();18        }19    }20}21public void PatchRequestEventHeaders(Dictionary<string, string> headers)PatchRequestEventHeaders
Using AI Code Generation
1var options = new LaunchOptions { Headless = false };2using (var browser = await Puppeteer.LaunchAsync(options))3{4  var page = await browser.NewPageAsync();5  await page.SetRequestInterceptionAsync(true);6  page.Request += async (sender, e) =>7  {8    await e.Request.PatchRequestEventHeaders(new Dictionary<string, string> { { "foo", "bar" } });9    await e.Request.ContinueAsync();10  };11}12var options = new LaunchOptions { Headless = false };13using (var browser = await Puppeteer.LaunchAsync(options))14{15  var page = await browser.NewPageAsync();16  await page.SetRequestInterceptionAsync(true);17  page.Request += async (sender, e) =>18  {19    await e.Request.PatchResponseEventHeaders(new Dictionary<string, string> { { "foo", "bar" } });20    await e.Request.ContinueAsync();21  };22}23var options = new LaunchOptions { Headless = false };24using (var browser = await Puppeteer.LaunchAsync(options))25{26  var page = await browser.NewPageAsync();27  await page.SetRequestInterceptionAsync(true);28  page.Request += async (sender, e) =>29  {30    await e.Request.PatchResponseEventHeaders(new Dictionary<string, string> { { "foo", "bar" } });31    await e.Request.ContinueAsync();32  };33}34var options = new LaunchOptions { Headless = false };35using (var browser = await Puppeteer.LaunchAsync(options))36{37  var page = await browser.NewPageAsync();38  await page.SetRequestInterceptionAsync(true);39  page.Request += async (sender, e) =>40  {41    await e.Request.PatchResponseEventHeaders(new Dictionary<string, string> { { "foo", "bar" } });PatchRequestEventHeaders
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 LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.SetRequestInterceptionAsync(true);14            page.Request += async (sender, e) =>15            {16                if (e.Request.ResourceType == ResourceType.Image)17                {18                    await e.Request.AbortAsync();19                }20                {21                    await e.Request.ContinueAsync();22                }23            };24            page.Response += async (sender, e) =>25            {26                {27                    var headers = e.Response.Headers;28                    await page.PatchRequestEventHeaders(e.Response.Request, headers);29                }30            };31            await page.ScreenshotAsync("example.png");PatchRequestEventHeaders
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.SetRequestInterceptionAsync(true);12            page.Request += async (sender, e) => await InterceptRequest(e);13            await browser.CloseAsync();14        }15        private static async Task InterceptRequest(RequestEventArgs e)16        {17            if (e.Request.Url.Contains("headers"))18            {19                await e.Request.ContinueAsync(new Payload20                {21                    Headers = new HeaderEntry[] { new HeaderEntry { Name = "x-custom-header", Value = "custom-header-value" } }22                });23            }24            {25                await e.Request.ContinueAsync();26            }27        }28    }29}PatchRequestEventHeaders
Using AI Code Generation
1using System.Threading.Tasks;2using PuppeteerSharp;3{4    {5        static async Task Main(string[] args)6        {7            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });8            var page = await browser.NewPageAsync();9            var client = page.Client;10            await client.Network.PatchRequestEventHeaders();11        }12    }13}PatchRequestEventHeaders
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                Args = new string[] { "--no-sandbox" }11            });12            var page = await browser.NewPageAsync();13            {14                { "foo", "bar" }15            });16            await page.ClickAsync("button[type='submit']");17            await page.WaitForNavigationAsync();18            await page.ScreenshotAsync("5.png");19            await browser.CloseAsync();20        }21    }22}Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
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