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How to use TracingOptions class of PuppeteerSharp package

Best Puppeteer-sharp code snippet using PuppeteerSharp.TracingOptions

Program.cs

Source:Program.cs

...90                var browser = await Puppeteer.LaunchAsync(options).ConfigureAwait(false);91                92                var page = await browser.NewPageAsync().ConfigureAwait(false);93                94                //await page.Tracing.StartAsync(new TracingOptions { Path = "" }).ConfigureAwait(false);95                //await page.Tracing.StopAsync().ConfigureAwait(false);96                //await page.CloseAsync().ConfigureAwait(false);97                var tryLimit = 30;98                var currentTry = 0;99                while (currentTry < tryLimit)100                {101                    while (links.TryDequeue(out var nextUrl))102                    {103                        currentTry = 0;104                        try105                        {106                            logger.LogInformation("{threadId} Getting url {nextUrl}", threadId, nextUrl);107                            Response? pageNav = null;108                            var tries = 0;...

Scrape.cs

Source:Scrape.cs

...49                {50                    Width = width,51                    Height = height52                });53                await page.Tracing.StartAsync(new TracingOptions54                {55                    Categories = new List<string> { "devtools.timeline" }56                });57                var client = await page.Target.CreateCDPSessionAsync();58                await client.SendAsync("Network.clearBrowserCache");59                await page.GoToAsync(url, timeout: 0);60                string rawTrace = await page.Tracing.StopAsync();61                string content = await page.GetContentAsync();62                //Image63                var imageElements = await page.QuerySelectorAllAsync("img");64                if (imageElements != null)65                {66                    imageCount = imageElements.Count();67                    imageProperties = await new ImageHelper().GetImageData(imageElements);...

TracingTests.cs

Source:TracingTests.cs

...49        [PuppeteerTest("tracing.spec.ts", "Tracing", "should output a trace")]50        [SkipBrowserFact(skipFirefox: true)]51        public async Task ShouldOutputATrace()52        {53            await Page.Tracing.StartAsync(new TracingOptions54            {55                Screenshots = true,56                Path = _file57            });58            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");59            await Page.Tracing.StopAsync();60            Assert.True(File.Exists(_file));61        }62        [PuppeteerTest("tracing.spec.ts", "Tracing", "should run with custom categories if provided")]63        [SkipBrowserFact(skipFirefox: true)]64        public async Task ShouldRunWithCustomCategoriesProvided()65        {66            await Page.Tracing.StartAsync(new TracingOptions67            {68                Screenshots = true,69                Path = _file,70                Categories = new List<string>71                {72                    "disabled-by-default-v8.cpu_profiler.hires"73                }74            });75            await Page.Tracing.StopAsync();76            using (var file = File.OpenText(_file))77            using (var reader = new JsonTextReader(file))78            {79                var traceJson = JToken.ReadFrom(reader);80                Assert.Contains("disabled-by-default-v8.cpu_profiler.hires", traceJson["metadata"]["trace-config"].ToString());81            }82        }83        [PuppeteerTest("tracing.spec.ts", "Tracing", "should throw if tracing on two pages")]84        [SkipBrowserFact(skipFirefox: true)]85        public async Task ShouldThrowIfTracingOnTwoPages()86        {87            await Page.Tracing.StartAsync(new TracingOptions88            {89                Path = _file90            });91            var newPage = await Browser.NewPageAsync();92            await Assert.ThrowsAsync<InvalidOperationException>(async () =>93            {94                await Page.Tracing.StartAsync(new TracingOptions95                {96                    Path = _file97                });98            });99            await newPage.CloseAsync();100            await Page.Tracing.StopAsync();101        }102        [PuppeteerTest("tracing.spec.ts", "Tracing", "should return a buffer")]103        [SkipBrowserFact(skipFirefox: true)]104        public async Task ShouldReturnABuffer()105        {106            await Page.Tracing.StartAsync(new TracingOptions107            {108                Screenshots = true,109                Path = _file110            });111            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");112            var trace = await Page.Tracing.StopAsync();113            var buf = File.ReadAllText(_file);114            Assert.Equal(trace, buf);115        }116        [PuppeteerTest("tracing.spec.ts", "Tracing", "should work without options")]117        [SkipBrowserFact(skipFirefox: true)]118        public async Task ShouldWorkWithoutOptions()119        {120            await Page.Tracing.StartAsync();121            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");122            var trace = await Page.Tracing.StopAsync();123            Assert.NotNull(trace);124        }125        [PuppeteerTest("tracing.spec.ts", "Tracing", "should support a buffer without a path")]126        [SkipBrowserFact(skipFirefox: true)]127        public async Task ShouldSupportABufferWithoutAPath()128        {129            await Page.Tracing.StartAsync(new TracingOptions130            {131                Screenshots = true132            });133            await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");134            var trace = await Page.Tracing.StopAsync();135            Assert.Contains("screenshot", trace);136        }137    }138}...

Tracing.cs

Source:Tracing.cs

...5using PuppeteerSharp.Messaging;6namespace PuppeteerSharp7{8    /// <summary>9    /// You can use <see cref="Tracing.StartAsync(TracingOptions)"/> and <see cref="Tracing.StopAsync"/> to create a trace file which can be opened in Chrome DevTools or timeline viewer.10    /// </summary>11    /// <example>12    /// <code>13    /// await Page.Tracing.StartAsync(new TracingOptions14    /// {15    ///     Screenshots = true,16    ///     Path = _file17    /// });18    /// await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");19    /// await Page.Tracing.StopAsync();20    /// </code>21    /// </example>22    public class Tracing23    {24        private readonly CDPSession _client;25        private bool _recording;26        private string _path;27        private static readonly List<string> _defaultCategories = new List<string>()28        {29            "-*",30            "devtools.timeline",31            "v8.execute",32            "disabled-by-default-devtools.timeline",33            "disabled-by-default-devtools.timeline.frame",34            "toplevel",35            "blink.console",36            "blink.user_timing",37            "latencyInfo",38            "disabled-by-default-devtools.timeline.stack",39            "disabled-by-default-v8.cpu_profiler"40        };41        internal Tracing(CDPSession client)42        {43            _client = client;44        }45        /// <summary>46        /// Starts tracing.47        /// </summary>48        /// <returns>Start task</returns>49        /// <param name="options">Tracing options</param>50        public async Task StartAsync(TracingOptions options)51        {52            if (_recording)53            {54                throw new InvalidOperationException("Cannot start recording trace while already recording trace.");55            }5657            if (string.IsNullOrEmpty(options.Path))58            {59                throw new ArgumentException("Must specify a path to write trace file to.");60            }616263            var categories = options.Categories ?? _defaultCategories;64
...

TracingOptions.cs

Source:TracingOptions.cs

1ï»¿using System.Collections.Generic;2namespace PuppeteerSharp3{4    /// <summary>5    /// Tracing options used on <see cref="Tracing.StartAsync(TracingOptions)"/>.6    /// </summary>7    public class TracingOptions8    {9        /// <summary>10        /// Gets or sets a value indicating whether Tracing should captures screenshots in the trace11        /// </summary>12        /// <value>Screenshots option</value>13        public bool Screenshots { get; set; }14        /// <summary>15        /// A path to write the trace file to16        /// </summary>17        /// <value>The path.</value>18        public string Path { get; set; }19        /// <summary>20        /// Specify custom categories to use instead of default.21        /// </summary>...

TracingOptions

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.Tracing.StartAsync(new TracingOptions13            {14                Categories = new[] { "devtools.timeline" }15            });16            await page.Tracing.StopAsync();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.Tracing.StartAsync(new TracingOptions33            {34                Categories = new[] { "devtools.timeline" },35            });36            await page.Tracing.StopAsync();37            await browser.CloseAsync();38        }39    }40}

TracingOptions

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;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            {13                var page = await browser.NewPageAsync();14                await page.SetRequestInterceptionAsync(true);15                page.Request += async (sender, e) =>16                {17                    if (e.Request.ResourceType == ResourceType.Image)18                    {19                        await e.Request.AbortAsync();20                    }21                    {22                        await e.Request.ContinueAsync();23                    }24                };25                await page.ScreenshotAsync("google.png");26            }27        }28    }29}30using PuppeteerSharp;31using System;32using System.Threading.Tasks;33{34    {35        static async Task Main(string[] args)36        {37            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);38            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions39            {40            }))41            {42                var page = await browser.NewPageAsync();43                await page.SetRequestInterceptionAsync(true);44                page.RequestFailed += async (sender, e) =>45                {46                    if (e.Request.ResourceType == ResourceType.Image)47                    {48                        if (e.Request.Url.Contains(".jpg"))49                        {50                            await e.Request.AbortAsync();51                        }52                    }53                };54                await page.ScreenshotAsync("google.png");55            }56        }

TracingOptions

Using AI Code Generation

1{2    Args = new string[] { "--no-sandbox" }3};4var browser = await Puppeteer.LaunchAsync(options);5var page = await browser.NewPageAsync();6var client = page.GetClient();7await client.SendAsync("Tracing.start", new { categories = new[] { "-*", "devtools.timeline" } });8{9    Args = new string[] { "--no-sandbox" }10};11var browser = await Puppeteer.LaunchAsync(options);12var page = await browser.NewPageAsync();13await page.Tracing.StartAsync(new TracingOptions { Categories = new[] { "-*", "devtools.timeline" } });14using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true, Args = new string[] { "--no-sandbox" } }))15using (var page = await browser.NewPageAsync())16{17    await page.Tracing.StartAsync(new TracingOptions { Categories = new[] { "-*", "devtools.timeline" } });18}19var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true, Args = new string[] { "--no-sandbox" } });20var page = await browser.NewPageAsync();21await page.Tracing.StartAsync(new TracingOptions { Categories = new[] { "-*", "devtools.timeline" } });22var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true, Args = new string[] { "--no-sandbox" } });23var page = await browser.NewPageAsync();24await page.Tracing.StartAsync(new TracingOptions { Categories = new[] { "-*", "devtools.timeline" } });

TracingOptions

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions();9            options.Headless = false;10            options.Args = new string[] { "--disable-extensions" };11            options.Devtools = true;12            options.TracingCategories = new string[] { "devtools.timeline" };13            options.TracingRecordMode = RecordMode.RecordUntilFull;14            options.TracingBufferSize = 10000000;15            options.TracingScreenshot = true;16            options.TracingPath = "trace.json";17            var browser = await Puppeteer.LaunchAsync(options);18            var page = await browser.NewPageAsync();19            await page.ScreenshotAsync("screenshot.png");20            await browser.CloseAsync();21        }22    }23}24using PuppeteerSharp;25using System;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            var options = new LaunchOptions();32            options.Headless = false;33            options.Args = new string[] { "--disable-extensions" };34            options.Devtools = true;35            options.TracingCategories = new string[] { "devtools.timeline" };36            options.TracingRecordMode = RecordMode.RecordUntilFull;37            options.TracingBufferSize = 10000000;38            options.TracingScreenshot = true;39            options.TracingPath = "trace.json";40            var browser = await Puppeteer.LaunchAsync(options);41            var page = await browser.NewPageAsync();42            await page.ScreenshotAsync("screenshot.png");43            await browser.CloseAsync();44        }45    }46}

TracingOptions

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using PuppeteerSharp;7using PuppeteerSharp.Messaging;8using PuppeteerSharp.Helpers;9using PuppeteerSharp.Input;10using PuppeteerSharp.Media;11using PuppeteerSharp.Contrib.Extensions;12using PuppeteerSharp.Contrib.PageObjects;13using PuppeteerSharp.Contrib.Poco;14using PuppeteerSharp.Contrib.RequestInterception;15{16    {17        static async Task Main(string[] args)18        {19            {20                Categories = new[] { "devtools.timeline" },21            };22            var browser = await Puppeteer.LaunchAsync(new LaunchOptions23            {24                Args = new[] { "--start-maximized" },25            });26            var page = await browser.NewPageAsync();27            await page.Tracing.StartAsync(options);28            await page.WaitForTimeoutAsync(5000);29            await page.Tracing.StopAsync();30            await browser.CloseAsync();31        }32    }33}34using System;35using System.Collections.Generic;36using System.Linq;37using System.Text;38using System.Threading.Tasks;39using PuppeteerSharp;40using PuppeteerSharp.Messaging;41using PuppeteerSharp.Helpers;42using PuppeteerSharp.Input;43using PuppeteerSharp.Media;44using PuppeteerSharp.Contrib.Extensions;45using PuppeteerSharp.Contrib.PageObjects;46using PuppeteerSharp.Contrib.Poco;47using PuppeteerSharp.Contrib.RequestInterception;48{49    {50        static async Task Main(string[] args)51        {52            var browser = await Puppeteer.LaunchAsync(new LaunchOptions53            {54                Args = new[] { "--start-maximized" },55            });56            var page = await browser.NewPageAsync();57            await page.Tracing.StartAsync("trace.json");58            await page.WaitForTimeoutAsync(5000);

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