How to use MetricsAsync method of PuppeteerSharp.Page class

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

Page.cs

Source:Page.cs

...81        /// Raised when the page crashes82        /// </summary>83        public event EventHandler<ErrorEventArgs> Error;84        /// <summary>85        /// Raised when the JavaScript code makes a call to <c>console.timeStamp</c>. For the list of metrics see <see cref="Page.MetricsAsync"/>.86        /// </summary>87        public event EventHandler<MetricEventArgs> Metrics;88        /// <summary>89        /// Raised when a JavaScript dialog appears, such as <c>alert</c>, <c>prompt</c>, <c>confirm</c> or <c>beforeunload</c>. Puppeteer can respond to the dialog via <see cref="Dialog"/>'s <see cref="Dialog.Accept(string)"/> or <see cref="Dialog.Dismiss"/> methods.90        /// </summary>91        public event EventHandler<DialogEventArgs> Dialog;92        /// <summary>93        /// Raised when JavaScript within the page calls one of console API methods, e.g. <c>console.log</c> or <c>console.dir</c>. Also emitted if the page throws an error or a warning.94        /// The arguments passed into <c>console.log</c> appear as arguments on the event handler.95        /// </summary>96        /// <example>97        /// An example of handling <see cref="Console"/> event:98        /// <code>99        /// <![CDATA[100        /// page.Console += (sender, e) => 101        /// {102        ///     for (var i = 0; i < e.Message.Args.Count; ++i)103        ///     {104        ///         System.Console.WriteLine($"{i}: {e.Message.Args[i]}");105        ///     }106        /// }107        /// ]]>108        /// </code>109        /// </example>110        public event EventHandler<ConsoleEventArgs> Console;111        /// <summary>112        /// Raised when a frame is attached.113        /// </summary>114        public event EventHandler<FrameEventArgs> FrameAttached;115        /// <summary>116        /// Raised when a frame is detached.117        /// </summary>118        public event EventHandler<FrameEventArgs> FrameDetached;119        /// <summary>120        /// Raised when a frame is navigated to a new url.121        /// </summary>122        public event EventHandler<FrameEventArgs> FrameNavigated;123        /// <summary>124        /// Raised when a <see cref="Response"/> is received.125        /// </summary>126        public event EventHandler<ResponseCreatedEventArgs> Response;127        /// <summary>128        /// Raised when a page issues a request. The <see cref="Request"/> object is read-only.129        /// In order to intercept and mutate requests, see <see cref="SetRequestInterceptionAsync(bool)"/>130        /// </summary>131        public event EventHandler<RequestEventArgs> Request;132        /// <summary>133        /// Raised when a request finishes successfully.134        /// </summary>135        public event EventHandler<RequestEventArgs> RequestFinished;136        /// <summary>137        /// Raised when a request fails, for example by timing out.138        /// </summary>139        public event EventHandler<RequestEventArgs> RequestFailed;140        /// <summary>141        /// Raised when an uncaught exception happens within the page.142        /// </summary>143        public event EventHandler<PageErrorEventArgs> PageError;144        /// <summary>145        /// This setting will change the default maximum navigation time of 30 seconds for the following methods:146        /// - <see cref="GoToAsync(string, NavigationOptions)"/>147        /// - <see cref="GoBackAsync(NavigationOptions)"/>148        /// - <see cref="GoForwardAsync(NavigationOptions)"/>149        /// - <see cref="ReloadAsync(NavigationOptions)"/>150        /// - <see cref="WaitForNavigationAsync(NavigationOptions)"/>151        /// </summary>152        public int DefaultNavigationTimeout { get; set; } = 30000;153        /// <summary>154        /// Gets page's main frame155        /// </summary>156        /// <remarks>157        /// Page is guaranteed to have a main frame which persists during navigations.158        /// </remarks>159        public Frame MainFrame => _frameManager.MainFrame;160        /// <summary>161        /// Gets all frames attached to the page.162        /// </summary>163        /// <value>An array of all frames attached to the page.</value>164        public Frame[] Frames => _frameManager.Frames.Values.ToArray();165        /// <summary>166        /// Shortcut for <c>page.MainFrame.Url</c>167        /// </summary>168        public string Url => MainFrame.Url;169        /// <summary>170        /// Gets that target this page was created from.171        /// </summary>172        public Target Target { get; }173        /// <summary>174        /// Gets this page's keyboard175        /// </summary>176        public Keyboard Keyboard { get; }177        /// <summary>178        /// Gets this page's touchscreen179        /// </summary>180        public Touchscreen Touchscreen { get; }181        /// <summary>182        /// Gets this page's coverage183        /// </summary>184        public Coverage Coverage { get; }185        /// <summary>186        /// Gets this page's tracing187        /// </summary>188        public Tracing Tracing { get; }189        /// <summary>190        /// Gets this page's mouse191        /// </summary>192        public Mouse Mouse { get; }193        /// <summary>194        /// Gets this page's viewport195        /// </summary>196        public ViewPortOptions Viewport { get; private set; }197        /// <summary>198        /// List of suported metrics provided by the <see cref="Metrics"/> event.199        /// </summary>200        public static readonly IEnumerable<string> SupportedMetrics = new List<string>201        {202            "Timestamp",203            "Documents",204            "Frames",205            "JSEventListeners",206            "Nodes",207            "LayoutCount",208            "RecalcStyleCount",209            "LayoutDuration",210            "RecalcStyleDuration",211            "ScriptDuration",212            "TaskDuration",213            "JSHeapUsedSize",214            "JSHeapTotalSize"215        };216        #endregion217        #region Public Methods218        /// <summary>219        /// Returns metrics220        /// </summary>221        /// <returns>Task which resolves into a list of metrics</returns>222        /// <remarks>223        /// All timestamps are in monotonic time: monotonically increasing time in seconds since an arbitrary point in the past.224        /// </remarks>225        public async Task<Dictionary<string, decimal>> MetricsAsync()226        {227            var response = await Client.SendAsync<PerformanceGetMetricsResponse>("Performance.getMetrics");228            return BuildMetricsObject(response.Metrics);229        }230        /// <summary>231        /// Fetches an element with <paramref name="selector"/>, scrolls it into view if needed, and then uses <see cref="Touchscreen"/> to tap in the center of the element.232        /// </summary>233        /// <param name="selector">A selector to search for element to tap. If there are multiple elements satisfying the selector, the first will be clicked.</param>234        /// <exception cref="SelectorException">If there's no element matching <paramref name="selector"/></exception>235        /// <returns>Task which resolves when the element matching <paramref name="selector"/> is successfully tapped</returns>236        public async Task TapAsync(string selector)237        {238            var handle = await QuerySelectorAsync(selector);239            if (handle == null)...

VkBrwUser.cs

Source:VkBrwUser.cs

...852        ////    var ver = browser.GetVersionAsync().Result;853        ////    var userAgent = browser.GetUserAgentAsync().Result;854        ////    userPage.SetUserAgentAsync("Mozilla / 5.0(Windows NT 10.0; Win64; x64) AppleWebKit / 537.36(KHTML, like Gecko) Chrome / 74.0.3723.0 Safari / 537.36");855        ////    //page.GoToAsync("http://iloveradio.de/iloveradio/").GetAwaiter().GetResult();856        ////    //var metrics = page.MetricsAsync().Result;857        ////    //var content = page.GetContentAsync().Result;858        ////    //var cookies = page.GetCookiesAsync().Result;859        ////    // ID selector should be marked with hashsign860        ////    // Getting all DIV sub-elements from artisttitle section861        ////    //var elementHandle = page.WaitForSelectorAsync("#artisttitle DIV").Result;862        ////    // innerText is a visible text from an element863        ////    //var artist = page.EvaluateExpressionAsync<string>("$('#artisttitle DIV')[0].innerText").Result;864        ////    List<VkCommunity> nwPages = new List<VkCommunity>();865        ////    userPage.GoToAsync(ProfileLink).GetAwaiter().GetResult();866        ////    var userIsLoaded = userPage.WaitForSelectorAsync("#page_info_wrap.page_info_wrap").Result;867        ////    var hiddenProfileBlock = userPage.QuerySelectorAllAsync("h5.profile_deleted_text").Result;868        ////    if (hiddenProfileBlock.Length == 0)869        ////    {870        ////        var idolsLoaded = userPage.WaitForSelectorAsync("#profile_idols").Result;...

Program.cs

Source:Program.cs

...133                                    .MaxExecutionTime(30000)134                                    .ExecuteWithoutResultsAsync().ConfigureAwait(false);135                                continue;136                            }137                            var metrics = await page.MetricsAsync();138                            await graphClient.Cypher139                                .Match("(page:Page)")140                                .Where((PageInfo page) => page.Url == nextUrl)141                                142                                .Set("page.StatusCode = {status}, page.LayoutDuration = {LayoutDuration}, page.ScriptDuration = {ScriptDuration}, page.TaskDuration = {TaskDuration}, page.JSHeapUsedSize = {JSHeapUsedSize}, page.JSHeapTotalSize = {JSHeapTotalSize}, page.Nodes = {Nodes}, page.JSEventListeners = {JSEventListeners}")143                                .WithParams(new Dictionary<string, object> {144                                    { "status", (int)pageNav.Status },145                                    { "LayoutDuration", metrics["LayoutDuration"] },146                                    { "ScriptDuration", metrics["ScriptDuration"] },147                                    { "TaskDuration", metrics["TaskDuration"] },148                                    { "JSHeapUsedSize", metrics["JSHeapUsedSize"] },149                                    { "JSHeapTotalSize", metrics["JSHeapTotalSize"] },150                                    { "Nodes", metrics["Nodes"] },151                                    { "JSEventListeners", metrics["JSEventListeners"] }...

MetricsTests.cs

Source:MetricsTests.cs

...15        [Fact]16        public async Task ShouldGetMetricsFromPage()17        {18            await Page.GoToAsync("about:blank");19            var metrics = await Page.MetricsAsync();20            CheckMetrics(metrics);21        }22        [Fact]23        public async Task MetricsEventFiredOnConsoleTimespan()24        {25            var metricsTaskWrapper = new TaskCompletionSource<MetricEventArgs>();26            Page.Metrics += (sender, e) => metricsTaskWrapper.SetResult(e);27            await Page.EvaluateExpressionAsync("console.timeStamp('test42')");28            var result = await metricsTaskWrapper.Task;29            Assert.Equal("test42", result.Title);30            CheckMetrics(result.Metrics);31        }32        private void CheckMetrics(Dictionary<string, decimal> metrics)33        {...

MetricsAsync

Using AI Code Generation

1using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))2{3    var page = await browser.NewPageAsync();4    var metrics = await page.MetricsAsync();5    Console.WriteLine(metrics);6}7using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))8{9    var page = await browser.NewPageAsync();10    var metrics = await page.MetricsAsync();11    Console.WriteLine(metrics);12}13using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))14{15    var page = await browser.NewPageAsync();16    var metrics = await page.MetricsAsync();17    Console.WriteLine(metrics);18}19using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))20{21    var page = await browser.NewPageAsync();22    var metrics = await page.MetricsAsync();23    Console.WriteLine(metrics);24}25using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))26{27    var page = await browser.NewPageAsync();28    var metrics = await page.MetricsAsync();29    Console.WriteLine(metrics);30}31using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))32{33    var page = await browser.NewPageAsync();34    var metrics = await page.MetricsAsync();35    Console.WriteLine(metrics);36}37using (var browser = await Puppeteer.LaunchAsync(new

MetricsAsync

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            var metrics = await page.MetricsAsync();11            Console.WriteLine(metrics);12            await browser.CloseAsync();13        }14    }15}16PuppeteerSharp.PageMetrics { Timestamp = 1590821623902, Documents = 2, Frames = 2, JSEventListeners = 0, Nodes = 0, LayoutCount = 1, RecalcStyleCount = 0, LayoutDuration = 0.216, RecalcStyleDuration = 0, ScriptDuration = 0, TaskDuration = 0.216, JSHeapUsedSize = 0, JSHeapTotalSize = 0 }17Recommended Posts: PuppeteerSharp | Page.MetricsAsync()18PuppeteerSharp | Page.SetViewportAsync()19PuppeteerSharp | Page.SetBypassCSPAsync()20PuppeteerSharp | Page.SetJavaScriptEnabledAsync()21PuppeteerSharp | Page.SetCacheEnabledAsync()22PuppeteerSharp | Page.SetRequestInterceptionAsync()23PuppeteerSharp | Page.SetExtraHTTPHeadersAsync()24PuppeteerSharp | Page.SetOfflineModeAsync()25PuppeteerSharp | Page.SetGeolocationAsync()26PuppeteerSharp | Page.SetFileChooserInterceptedAsync()27PuppeteerSharp | Page.SetContentAsync()28PuppeteerSharp | Page.SetCookieAsync()29PuppeteerSharp | Page.SetUserAgentAsync()30PuppeteerSharp | Page.SetDefaultNavigationTimeoutAsync()31PuppeteerSharp | Page.SetDefaultTimeoutAsync()32PuppeteerSharp | Page.SetJavaScriptEnabledAsync()33PuppeteerSharp | Page.SetOfflineModeAsync()34PuppeteerSharp | Page.SetRequestInterceptionAsync()35PuppeteerSharp | Page.SetViewportAsync()36PuppeteerSharp | Page.SetBypassCSPAsync()37PuppeteerSharp | Page.SetJavaScriptEnabledAsync()38PuppeteerSharp | Page.SetCacheEnabledAsync()39PuppeteerSharp | Page.SetRequestInterceptionAsync()40PuppeteerSharp | Page.SetExtraHTTPHeadersAsync()41PuppeteerSharp | Page.SetOfflineModeAsync()

MetricsAsync

Using AI Code Generation

1var metrics = await page.MetricsAsync();2Console.WriteLine("metrics: " + metrics);3var metrics = await page.MetricsAsync();4Console.WriteLine("metrics: " + metrics);5var metrics = await page.MetricsAsync();6Console.WriteLine("metrics: " + metrics);7var metrics = await page.MetricsAsync();8Console.WriteLine("metrics: " + metrics);9var metrics = await page.MetricsAsync();10Console.WriteLine("metrics: " + metrics);11var metrics = await page.MetricsAsync();12Console.WriteLine("metrics: " + metrics);13var metrics = await page.MetricsAsync();14Console.WriteLine("metrics: " + metrics);15var metrics = await page.MetricsAsync();16Console.WriteLine("metrics: " + metrics);17var metrics = await page.MetricsAsync();18Console.WriteLine("metrics: " + metrics);19var metrics = await page.MetricsAsync();20Console.WriteLine("metrics: " + metrics);21var metrics = await page.MetricsAsync();22Console.WriteLine("metrics: " + metrics);23var metrics = await page.MetricsAsync();24Console.WriteLine("metrics: " + metrics);25var metrics = await page.MetricsAsync();26Console.WriteLine("metrics: " + metrics);

MetricsAsync

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            var browser = await Puppeteer.LaunchAsync(new LaunchOptions13            {14            });15            var page = await browser.NewPageAsync();16            var metrics = await page.MetricsAsync();17            Console.WriteLine("Metrics: " + metrics);18            await browser.CloseAsync();19        }20    }21}22Metrics: {"Timestamp":1597187483799,"Documents":1,"Frames":1,"JSEventListeners":1,"Nodes":6,"LayoutCount":1,"RecalcStyleCount":1,"LayoutDuration":0.19999999999999996,"RecalcStyleDuration":0.050000000000000044,"TaskDuration":0.30000000000000004,"JSHeapUsedSize":8012088,"JSHeapTotalSize":8388608}

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