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How to use SetRequestInterceptionAsync method of PuppeteerSharp.NetworkManager class

Best Puppeteer-sharp code snippet using PuppeteerSharp.NetworkManager.SetRequestInterceptionAsync

Page.cs

Source:Page.cs

...147        /// </example>148        public event EventHandler<ResponseCreatedEventArgs> Response;149        /// <summary>150        /// Raised when a page issues a request. The <see cref="Request"/> object is read-only.151        /// In order to intercept and mutate requests, see <see cref="SetRequestInterceptionAsync(bool)"/>152        /// </summary>153        public event EventHandler<RequestEventArgs> Request;154        /// <summary>155        /// Raised when a request finishes successfully.156        /// </summary>157        public event EventHandler<RequestEventArgs> RequestFinished;158        /// <summary>159        /// Raised when a request fails, for example by timing out.160        /// </summary>161        public event EventHandler<RequestEventArgs> RequestFailed;162        /// <summary>163        /// Raised when an uncaught exception happens within the page.164        /// </summary>165        public event EventHandler<PageErrorEventArgs> PageError;166        ///// <summary>167        ///// Emitted when a dedicated WebWorker (<see href="https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API"/>) is spawned by the page.168        ///// </summary>169        //public event EventHandler<WorkerEventArgs> WorkerCreated;170        ///// <summary>171        ///// Emitted when a dedicated WebWorker (<see href="https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API"/>) is terminated.172        ///// </summary>173        //public event EventHandler<WorkerEventArgs> WorkerDestroyed;174        /// <summary>175        /// Raised when the page closes.176        /// </summary>177        public event EventHandler Close;178        /// <summary>179        /// Raised when the page opens a new tab or window.180        /// </summary>181        public event EventHandler<PopupEventArgs> Popup;182        /// <summary>183        /// This setting will change the default maximum time for the following methods:184        /// - <see cref="GoToAsync(string, NavigationOptions)"/>185        /// - <see cref="GoBackAsync(NavigationOptions)"/>186        /// - <see cref="GoForwardAsync(NavigationOptions)"/>187        /// - <see cref="ReloadAsync(NavigationOptions)"/>188        /// - <see cref="SetContentAsync(string, NavigationOptions)"/>189        /// - <see cref="WaitForNavigationAsync(NavigationOptions)"/>190        /// **NOTE** <see cref="DefaultNavigationTimeout"/> takes priority over <seealso cref="DefaultTimeout"/>191        /// </summary>192        public int DefaultNavigationTimeout193        {194            get => _timeoutSettings.NavigationTimeout;195            set => _timeoutSettings.NavigationTimeout = value;196        }197        /// <summary>198        /// This setting will change the default maximum times for the following methods:199        /// - <see cref="GoBackAsync(NavigationOptions)"/>200        /// - <see cref="GoForwardAsync(NavigationOptions)"/>201        /// - <see cref="GoToAsync(string, NavigationOptions)"/>202        /// - <see cref="ReloadAsync(NavigationOptions)"/>203        /// - <see cref="SetContentAsync(string, NavigationOptions)"/>204        /// - <see cref="WaitForFunctionAsync(string, object[])"/>205        /// - <see cref="WaitForNavigationAsync(NavigationOptions)"/>206        /// - <see cref="WaitForRequestAsync(string, WaitForOptions)"/>207        /// - <see cref="WaitForResponseAsync(string, WaitForOptions)"/>208        /// - <see cref="WaitForXPathAsync(string, WaitForSelectorOptions)"/>209        /// - <see cref="WaitForSelectorAsync(string, WaitForSelectorOptions)"/>210        /// - <see cref="WaitForExpressionAsync(string, WaitForFunctionOptions)"/>211        /// </summary>212        public int DefaultTimeout213        {214            get => _timeoutSettings.Timeout;215            set => _timeoutSettings.Timeout = value;216        }217        /// <summary>218        /// Gets page's main frame219        /// </summary>220        /// <remarks>221        /// Page is guaranteed to have a main frame which persists during navigations.222        /// </remarks>223        public Frame MainFrame => FrameManager.MainFrame;224        /// <summary>225        /// Gets all frames attached to the page.226        /// </summary>227        /// <value>An array of all frames attached to the page.</value>228        public Frame[] Frames => FrameManager.GetFrames();229        ///// <summary>230        ///// Gets all workers in the page.231        ///// </summary>232        //public Worker[] Workers => _workers.Values.ToArray();233        /// <summary>234        /// Shortcut for <c>page.MainFrame.Url</c>235        /// </summary>236        public string Url => MainFrame.Url;237        /// <summary>238        /// Gets that target this page was created from.239        /// </summary>240        public Target Target { get; }241        /// <summary>242        /// Gets this page's keyboard243        /// </summary>244        public Keyboard Keyboard { get; }245        /// <summary>246        /// Gets this page's touchscreen247        /// </summary>248        public Touchscreen Touchscreen { get; }249        /// <summary>250        /// Gets this page's coverage251        /// </summary>252        public Coverage Coverage { get; }253        /// <summary>254        /// Gets this page's mouse255        /// </summary>256        public Mouse Mouse { get; }257        /// <summary>258        /// Gets this page's viewport259        /// </summary>260        public ViewPortOptions Viewport { get; private set; }261        /// <summary>262        /// List of supported metrics provided by the <see cref="Metrics"/> event.263        /// </summary>264        public static readonly IEnumerable<string> SupportedMetrics = new List<string>265        {266            "Timestamp",267            "Documents",268            "Frames",269            "JSEventListeners",270            "Nodes",271            "LayoutCount",272            "RecalcStyleCount",273            "LayoutDuration",274            "RecalcStyleDuration",275            "ScriptDuration",276            "TaskDuration",277            "JSHeapUsedSize",278            "JSHeapTotalSize"279        };280        /// <summary>281        /// Get the browser the page belongs to.282        /// </summary>283        public Browser Browser => Target.Browser;284        /// <summary>285        /// Get the browser context that the page belongs to.286        /// </summary>287        public BrowserContext BrowserContext => Target.BrowserContext;288        /// <summary>289        /// Get an indication that the page has been closed.290        /// </summary>291        public bool IsClosed { get; private set; }292        /// <summary>293        /// Gets the accessibility.294        /// </summary>295        public Accessibility Accessibility { get; }296        internal bool JavascriptEnabled { get; set; } = true;297        internal bool HasPopupEventListeners => Popup?.GetInvocationList().Any() == true;298        internal FrameManager FrameManager { get; private set; }299        private Task SessionClosedTask300        {301            get302            {303                if (_sessionClosedTcs == null)304                {305                    _sessionClosedTcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);306                    Client.Disconnected += clientDisconnected;307                    void clientDisconnected(object sender, EventArgs e)308                    {309                        _sessionClosedTcs.TrySetException(new TargetClosedException("Target closed", "Session closed"));310                        Client.Disconnected -= clientDisconnected;311                    }312                }313                return _sessionClosedTcs.Task;314            }315        }316        #endregion317        #region Public Methods318        /// <summary>319        /// A utility function to be used with <see cref="Extensions.EvaluateFunctionAsync{T}(Task{JSHandle}, string, object[])"/>320        /// </summary>321        /// <param name="selector">A selector to query page for</param>322        /// <returns>Task which resolves to a <see cref="JSHandle"/> of <c>document.querySelectorAll</c> result</returns>323        public Task<JSHandle> QuerySelectorAllHandleAsync(string selector)324            => EvaluateFunctionHandleAsync("selector => Array.from(document.querySelectorAll(selector))", selector);325        /// <summary>326        /// Executes a script in browser context327        /// </summary>328        /// <param name="script">Script to be evaluated in browser context</param>329        /// <remarks>330        /// If the script, returns a Promise, then the method would wait for the promise to resolve and return its value.331        /// </remarks>332        /// <returns>Task which resolves to script return value</returns>333        public async Task<JSHandle> EvaluateExpressionHandleAsync(string script)334        {335            var context = await MainFrame.GetExecutionContextAsync().ConfigureAwait(false);336            return await context.EvaluateExpressionHandleAsync(script).ConfigureAwait(false);337        }338        /// <summary>339        /// Executes a script in browser context340        /// </summary>341        /// <param name="pageFunction">Script to be evaluated in browser context</param>342        /// <param name="args">Function arguments</param>343        /// <remarks>344        /// If the script, returns a Promise, then the method would wait for the promise to resolve and return its value.345        /// <see cref="JSHandle"/> instances can be passed as arguments346        /// </remarks>347        /// <returns>Task which resolves to script return value</returns>348        public async Task<JSHandle> EvaluateFunctionHandleAsync(string pageFunction, params object[] args)349        {350            var context = await MainFrame.GetExecutionContextAsync().ConfigureAwait(false);351            return await context.EvaluateFunctionHandleAsync(pageFunction, args).ConfigureAwait(false);352        }353        /// <summary>354        /// Activating request interception enables <see cref="Request.AbortAsync(RequestAbortErrorCode)">request.AbortAsync</see>, 355        /// <see cref="Request.ContinueAsync(Payload)">request.ContinueAsync</see> and <see cref="Request.RespondAsync(ResponseData)">request.RespondAsync</see> methods.356        /// </summary>357        /// <returns>The request interception task.</returns>358        /// <param name="value">Whether to enable request interception..</param>359        public Task SetRequestInterceptionAsync(bool value)360            => FrameManager.NetworkManager.SetRequestInterceptionAsync(value);361        /// <summary>362        /// Set offline mode for the page.363        /// </summary>364        /// <returns>Result task</returns>365        /// <param name="value">When <c>true</c> enables offline mode for the page.</param>366        public Task SetOfflineModeAsync(bool value) => FrameManager.NetworkManager.SetOfflineModeAsync(value);367        /// <summary>368        /// Adds a <c><![CDATA[<script>]]></c> tag into the page with the desired url or content369        /// </summary>370        /// <param name="options">add script tag options</param>371        /// <remarks>372        /// Shortcut for <c>page.MainFrame.AddScriptTagAsync(options)</c>373        /// </remarks>374        /// <returns>Task which resolves to the added tag when the script's onload fires or when the script content was injected into frame</returns>...

NetworkManager.cs

Source:NetworkManager.cs

...91        {92            _userCacheDisabled = !enabled;93            return UpdateProtocolCacheDisabledAsync();94        }95        internal Task SetRequestInterceptionAsync(bool value)96        {97            _userRequestInterceptionEnabled = value;98            return UpdateProtocolRequestInterceptionAsync();99        }100        #endregion101        #region Private Methods102        private Task UpdateProtocolCacheDisabledAsync()103            => _client.SendAsync("Network.setCacheDisabled", new NetworkSetCacheDisabledRequest104            {105                CacheDisabled = _userCacheDisabled || _protocolRequestInterceptionEnabled106            });107        private async void Client_MessageReceived(object sender, MessageEventArgs e)108        {109            try...

SetRequestInterceptionAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    static async Task Main(string[] args)6    {7        var browser = await Puppeteer.LaunchAsync(new LaunchOptions8        {9            ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"10        });11        var page = await browser.NewPageAsync();12        await page.SetRequestInterceptionAsync(true);13        page.Request += async (sender, e) =>14        {15            await e.Request.ContinueAsync();16        };17    }18}19using System;20using System.Threading.Tasks;21using PuppeteerSharp;22{23    static async Task Main(string[] args)24    {25        var browser = await Puppeteer.LaunchAsync(new LaunchOptions26        {27            ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"28        });29        var page = await browser.NewPageAsync();30        await page.SetRequestInterceptionAsync(true);31        page.Request += async (sender, e) =>32        {33            await e.Request.ContinueAsync();34        };35    }36}37using System;38using System.Threading.Tasks;39using PuppeteerSharp;40{41    static async Task Main(string[] args)42    {43        var browser = await Puppeteer.LaunchAsync(new LaunchOptions44        {45            ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"46        });47        var page = await browser.NewPageAsync();48        await page.SetRequestInterceptionAsync(true);49        page.Request += async (sender, e) =>50        {51            await e.Request.ContinueAsync();52        };53    }54}

SetRequestInterceptionAsync

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3});4var page = await browser.NewPageAsync();5await page.SetRequestInterceptionAsync(true);6page.Request += async (sender, e) =>7{8    if (e.Request.ResourceType == ResourceType.Image)9    {10        await e.Request.AbortAsync();11    }12    {13        await e.Request.ContinueAsync();14    }15};16await page.WaitForNavigationAsync();17await page.ScreenshotAsync("google.png");18await browser.CloseAsync();

SetRequestInterceptionAsync

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    Args = new string[] { "--start-maximized" }4});5var page = await browser.NewPageAsync();6await page.SetViewportAsync(new ViewPortOptions7{8});9await page.SetRequestInterceptionAsync(true);10page.Request += async (sender, e) =>11{12    if (e.Request.ResourceType == ResourceType.Image)13    {14        await e.Request.AbortAsync();15    }16    {17        await e.Request.ContinueAsync();18    }19};20await page.ScreenshotAsync("2.png");21await browser.CloseAsync();22var browser = await Puppeteer.LaunchAsync(new LaunchOptions23{24    Args = new string[] { "--start-maximized" }25});26var page = await browser.NewPageAsync();27await page.SetViewportAsync(new ViewPortOptions28{29});30await page.SetOfflineModeAsync(true);31await page.ScreenshotAsync("3.png");32await browser.CloseAsync();33var browser = await Puppeteer.LaunchAsync(new LaunchOptions34{35    Args = new string[] { "--start-maximized" }36});37var page = await browser.NewPageAsync();38await page.SetViewportAsync(new ViewPortOptions39{40});41await page.SetUserAgentAsync("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36");42await page.ScreenshotAsync("4.png");43await browser.CloseAsync();

SetRequestInterceptionAsync

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            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14                Args = new string[] { "--start-maximized" }15            });16            var page = await browser.NewPageAsync();17            await page.SetRequestInterceptionAsync(true);18            page.Request += Page_Request;19            await page.ScreenshotAsync("google.png");20            await browser.CloseAsync();21        }22        private static void Page_Request(object sender, PuppeteerSharp.RequestEventArgs e)23        {24            var request = e.Request;25            if (request.ResourceType == ResourceType.Image)26            {27                request.AbortAsync();28            }29            {30                request.ContinueAsync();31            }32        }33    }34}

SetRequestInterceptionAsync

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            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            }))12            using (var page = await browser.NewPageAsync())13            {14                await page.SetRequestInterceptionAsync(true);15                page.Request += async (sender, e) =>16                {17                    await e.Request.ContinueAsync();18                };19            }20        }21    }22}

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