How to use EmulateNetworkConditionsAsync method of PuppeteerSharp.Page class

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

Page.cs

Source:Page.cs

...584        /// <returns>Result task</returns>585        /// <remarks>586        /// **NOTE** This does not affect WebSockets and WebRTC PeerConnections (see https://crbug.com/563644)587        /// </remarks>588        public Task EmulateNetworkConditionsAsync(NetworkConditions networkConditions) => FrameManager.NetworkManager.EmulateNetworkConditionsAsync(networkConditions);589        /// <summary>590        /// Returns the page's cookies591        /// </summary>592        /// <param name="urls">Url's to return cookies for</param>593        /// <returns>Array of cookies</returns>594        /// <remarks>595        /// If no URLs are specified, this method returns cookies for the current page URL.596        /// If URLs are specified, only cookies for those URLs are returned.597        /// </remarks>598        public async Task<CookieParam[]> GetCookiesAsync(params string[] urls)599            => (await Client.SendAsync<NetworkGetCookiesResponse>("Network.getCookies", new NetworkGetCookiesRequest600            {601                Urls = urls.Length > 0 ? urls : new string[] { Url }602            }).ConfigureAwait(false)).Cookies;...

Puppeteer.cs

Source:Puppeteer.cs

...39        /// </code>40        /// </example>41        public static IReadOnlyDictionary<DeviceDescriptorName, DeviceDescriptor> Devices => DeviceDescriptors.ToReadOnly();42        /// <summary>43        /// Returns a list of network conditions to be used with <seealso cref="Page.EmulateNetworkConditionsAsync(NetworkConditions)"/>.44        /// Actual list of conditions can be found in <seealso cref="PredefinedNetworkConditions.Conditions"/>.45        /// </summary>46        /// <example>47        /// <code>48        ///<![CDATA[49        /// var slow3G = Puppeteer.NetworkConditions["Slow 3G"];50        /// using(var page = await browser.NewPageAsync())51        /// {52        ///     await page.EmulateNetworkConditionsAsync(slow3G);53        ///     await page.goto('https://www.google.com');54        /// }55        /// ]]>56        /// </code>57        /// </example>58        public static IReadOnlyDictionary<string, NetworkConditions> NetworkConditions => PredefinedNetworkConditions.ToReadOnly();59        /// <summary>60        /// Returns an array of argument based on the options provided and the platform where the library is running61        /// </summary>62        /// <returns>Chromium arguments.</returns>63        /// <param name="options">Options.</param>64        public static string[] GetDefaultArgs(LaunchOptions options = null)65            => (options?.Product ?? Product.Chrome) == Product.Chrome66                ? ChromiumLauncher.GetDefaultArgs(options ?? new LaunchOptions())...

PageEmulateNetworkConditionsTests.cs

Source:PageEmulateNetworkConditionsTests.cs

...17        {18            var slow3G = Puppeteer.NetworkConditions[NetworkConditions.Slow3G];19            var fast3G = Puppeteer.NetworkConditions[NetworkConditions.Fast3G];20            Assert.Equal("4g", await Page.EvaluateExpressionAsync<string>("window.navigator.connection.effectiveType").ConfigureAwait(false));21            await Page.EmulateNetworkConditionsAsync(fast3G);22            Assert.Equal("3g", await Page.EvaluateExpressionAsync<string>("window.navigator.connection.effectiveType").ConfigureAwait(false));23            await Page.EmulateNetworkConditionsAsync(slow3G);24            Assert.Equal("2g", await Page.EvaluateExpressionAsync<string>("window.navigator.connection.effectiveType").ConfigureAwait(false));25            await Page.EmulateNetworkConditionsAsync(null);26        }27    }28}...

NetworkConditions.cs

Source:NetworkConditions.cs

1namespace PuppeteerSharp2{3    /// <summary>4    /// Options to be used in <see cref="Page.EmulateNetworkConditionsAsync(NetworkConditions)"/>5    /// </summary>6    public class NetworkConditions7    {8        /// <summary>9        /// Key to be used with <see cref="Puppeteer.NetworkConditions()"/>10        /// </summary>11        public const string Slow3G = "Slow 3G";12        /// <summary>13        /// Key to be used with <see cref="Puppeteer.NetworkConditions()"/>14        /// </summary>15        public const string Fast3G = "Fast 3G";16        /// <summary>17        /// Download speed (bytes/s), `-1` to disable18        /// </summary>...

EmulateNetworkConditionsAsync

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            await page.EmulateNetworkConditionsAsync(new NetworkConditions11            {12            });13            Console.ReadKey();14        }15    }16}

EmulateNetworkConditionsAsync

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            await page.EmulateNetworkConditionsAsync(new NetworkConditions11            {12            });13            await page.EmulateNetworkConditionsAsync(new NetworkConditions14            {15            });16            await page.EmulateNetworkConditionsAsync(new NetworkConditions17            {18            });19            await page.EmulateNetworkConditionsAsync(new NetworkConditions20            {21            });22            await page.EmulateNetworkConditionsAsync(new NetworkConditions23            {24            });25            await page.EmulateNetworkConditionsAsync(new NetworkConditions26            {

EmulateNetworkConditionsAsync

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            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14            });15            var page = await browser.NewPageAsync();16            await page.EmulateNetworkConditionsAsync(new NetworkConditions17            {18            });19            await page.SetCacheEnabledAsync(false);20            await page.ScreenshotAsync("1.png");21            await browser.CloseAsync();22        }23    }24}

EmulateNetworkConditionsAsync

Using AI Code Generation

1using System;2using System.IO;3using System.Threading.Tasks;4using PuppeteerSharp;5{6    {7        static void Main(string[] args)8        {9            Console.WriteLine("Hello World!");10            MainAsync().Wait();11        }12        static async Task MainAsync()13        {14            var options = new LaunchOptions { Headless = true };15            using (var browser = await Puppeteer.LaunchAsync(options))16            {17                using (var page = await browser.NewPageAsync())18                {19                    var client = page.Client;20                    var network = client.Network;21                    await network.EnableAsync();22                    await network.SetCacheDisabledAsync(true);23                    await network.SetUserAgentOverrideAsync("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36");24                    await network.EmulateNetworkConditionsAsync(true, 100, 1000, 100, 2000);25                    await page.ScreenshotAsync("google.png");26                }27            }28        }29    }30}31using System;32using System.IO;33using System.Threading.Tasks;34using PuppeteerSharp;35{36    {37        static void Main(string[] args)38        {39            Console.WriteLine("Hello World!");40            MainAsync().Wait();41        }42        static async Task MainAsync()43        {44            var options = new LaunchOptions { Headless = true };45            using (var browser = await Puppeteer.LaunchAsync(options))46            {47                using (var page = await browser.NewPageAsync())48                {49                    var client = page.Client;50                    var network = client.Network;51                    await network.EnableAsync();52                    await network.SetCacheDisabledAsync(true);53                    await network.SetUserAgentOverrideAsync("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36");54                    await page.NetworkManager.EmulateNetworkConditionsAsync(true, 100, 1000, 100, 2000);

EmulateNetworkConditionsAsync

Using AI Code Generation

1using PuppeteerSharp;2using System.Threading.Tasks;3using System;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 LaunchOptions { Headless = false });13            var page = await browser.NewPageAsync();14            await page.EmulateNetworkConditionsAsync(new NetworkConditions15            {16            });17            await page.WaitForNavigationAsync();18            Console.WriteLine("Network conditions set");19            await page.CloseAsync();20            await browser.CloseAsync();21        }22    }23}

EmulateNetworkConditionsAsync

Using AI Code Generation

1{2    Args = new[] { "--no-sandbox" }3};4var browser = await Puppeteer.LaunchAsync(options);5var page = await browser.NewPageAsync();6await page.SetViewportAsync(new ViewPortOptions7{8});9await page.EmulateNetworkConditionsAsync(new NetworkConditions10{11});12await page.ScreenshotAsync("google.png");13await browser.CloseAsync();14{15    Args = new[] { "--no-sandbox" }16};17var browser = await Puppeteer.LaunchAsync(options);18var page = await browser.NewPageAsync();19await page.SetViewportAsync(new ViewPortOptions20{21});22await frame.EmulateNetworkConditionsAsync(new NetworkConditions23{24});25await page.ScreenshotAsync("google.png");26await browser.CloseAsync();27{28    Args = new[] { "--no-sandbox" }29};30var browser = await Puppeteer.LaunchAsync(options);31var page = await browser.NewPageAsync();32await page.SetViewportAsync(new ViewPortOptions33{34});35await page.EmulateNetworkConditionsAsync(new NetworkConditions36{37}, false);38await page.ScreenshotAsync("google.png");

EmulateNetworkConditionsAsync

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.EmulateNetworkConditionsAsync(new NetworkConditions13            {14            });15            Console.WriteLine("Press any key to close the browser");16            Console.ReadKey();17            await browser.CloseAsync();18        }19    }20}21using System;22using System.Threading.Tasks;23using PuppeteerSharp;24{25    {26        static async Task Main(string[] args)27        {28            var browser = await Puppeteer.LaunchAsync(new LaunchOptions29            {30            });31            var page = await browser.NewPageAsync();32            await page.EmulateNetworkConditionsAsync(new NetworkConditions33            {34            });35            Console.WriteLine("Press any key to close the browser");36            Console.ReadKey();

EmulateNetworkConditionsAsync

Using AI Code Generation

1using System.Threading.Tasks;2{3    {4        public static async Task Run()5        {6            var browser = await Puppeteer.LaunchAsync(new LaunchOptions7            {8                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",9            });10            var page = await browser.NewPageAsync();11            await page.EmulateNetworkConditionsAsync(new NetworkConditions12            {13            });14            await browser.CloseAsync();15        }16    }17}18using System.Threading.Tasks;19{20    {21        public static async Task Run()22        {23            var browser = await Puppeteer.LaunchAsync(new LaunchOptions24            {25                ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",26            });27            var page = await browser.NewPageAsync();28            await page.EmulateNetworkConditionsAsync(new NetworkConditions29            {30            });31            await browser.CloseAsync();32        }33    }34}

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