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How to use QueryObjectsAsync method of PuppeteerSharp.ExecutionContext class

Best Puppeteer-sharp code snippet using PuppeteerSharp.ExecutionContext.QueryObjectsAsync

ExecutionContext.cs

Source:ExecutionContext.cs

...95        /// The method iterates JavaScript heap and finds all the objects with the given prototype.96        /// </summary>97        /// <returns>A task which resolves to a handle to an array of objects with this prototype.</returns>98        /// <param name="prototypeHandle">A handle to the object prototype.</param>99        public async Task<JSHandle> QueryObjectsAsync(JSHandle prototypeHandle)100        {101            if (prototypeHandle.Disposed)102            {103                throw new PuppeteerException("Prototype JSHandle is disposed!");104            }105            if (prototypeHandle.RemoteObject.ObjectId == null)106            {107                throw new PuppeteerException("Prototype JSHandle must not be referencing primitive value");108            }109            var response = await _client.SendAsync<RuntimeQueryObjectsResponse>("Runtime.queryObjects", new RuntimeQueryObjectsRequest110            {111                PrototypeObjectId = prototypeHandle.RemoteObject.ObjectId112            }).ConfigureAwait(false);113            return CreateJSHandle(response.Objects);...

QueryObjectsTests.cs

Source:QueryObjectsTests.cs

...17        {18            // Instantiate an object19            await Page.EvaluateExpressionAsync("window.set = new Set(['hello', 'world'])");20            var prototypeHandle = await Page.EvaluateExpressionHandleAsync("Set.prototype");21            var objectsHandle = await Page.QueryObjectsAsync(prototypeHandle);22            var count = await Page.EvaluateFunctionAsync<int>("objects => objects.length", objectsHandle);23            Assert.Equal(1, count);24            var values = await Page.EvaluateFunctionAsync<string[]>("objects => Array.from(objects[0].values())", objectsHandle);25            Assert.Equal(new[] { "hello", "world" }, values);26        }27        [PuppeteerTest("page.spec.ts", "ExecutionContext.queryObjects", "should work for non-blank page")]28        [SkipBrowserFact(skipFirefox: true)]29        public async Task ShouldWorkForNonBlankPage()30        {31            // Instantiate an object32            await Page.GoToAsync(TestConstants.EmptyPage);33            await Page.EvaluateFunctionAsync("() => window.set = new Set(['hello', 'world'])");34            var prototypeHandle = await Page.EvaluateFunctionHandleAsync("() => Set.prototype");35            var objectsHandle = await Page.QueryObjectsAsync(prototypeHandle);36            var count = await Page.EvaluateFunctionAsync<int>("objects => objects.length", objectsHandle);37            Assert.Equal(1, count);38        }39        [PuppeteerTest("page.spec.ts", "ExecutionContext.queryObjects", "should fail for disposed handles")]40        [PuppeteerFact]41        public async Task ShouldFailForDisposedHandles()42        {43            var prototypeHandle = await Page.EvaluateExpressionHandleAsync("HTMLBodyElement.prototype");44            await prototypeHandle.DisposeAsync();45            var exception = await Assert.ThrowsAsync<PuppeteerException>(()46                => Page.QueryObjectsAsync(prototypeHandle));47            Assert.Equal("Prototype JSHandle is disposed!", exception.Message);48        }49        [PuppeteerTest("page.spec.ts", "ExecutionContext.queryObjects", "should fail primitive values as prototypes")]50        [PuppeteerFact]51        public async Task ShouldFailPrimitiveValuesAsPrototypes()52        {53            var prototypeHandle = await Page.EvaluateExpressionHandleAsync("42");54            var exception = await Assert.ThrowsAsync<PuppeteerException>(()55                => Page.QueryObjectsAsync(prototypeHandle));56            Assert.Equal("Prototype JSHandle must not be referencing primitive value", exception.Message);57        }58    }59}...

QueryObjectsAsync

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            var result = await page.QueryObjectsAsync("window");17            Console.WriteLine(result);18            await browser.CloseAsync();19        }20    }21}22Recommended Posts: PuppeteerSharp | QueryObjectsAsync() Method23PuppeteerSharp | QueryObjectsAsync() Method in C#24PuppeteerSharp | QueryObjectsAsync() Method in Node.js25PuppeteerSharp | EvaluateFunctionHandleAsync() Method26PuppeteerSharp | EvaluateFunctionHandleAsync() Method in C#27PuppeteerSharp | EvaluateFunctionHandleAsync() Method in Node.js28PuppeteerSharp | EvaluateHandleAsync() Method29PuppeteerSharp | EvaluateHandleAsync() Method in C#30PuppeteerSharp | EvaluateHandleAsync() Method in Node.js31PuppeteerSharp | QuerySelectorAsync() Method32PuppeteerSharp | QuerySelectorAsync() Method in C#33PuppeteerSharp | QuerySelectorAsync() Method in Node.js34PuppeteerSharp | QuerySelectorAllAsync() Method35PuppeteerSharp | QuerySelectorAllAsync() Method in C#36PuppeteerSharp | QuerySelectorAllAsync() Method in Node.js37PuppeteerSharp | WaitForFunctionAsync() Method38PuppeteerSharp | WaitForFunctionAsync() Method in C#39PuppeteerSharp | WaitForFunctionAsync() Method in Node.js40PuppeteerSharp | WaitForSelectorAsync() Method41PuppeteerSharp | WaitForSelectorAsync() Method in C#42PuppeteerSharp | WaitForSelectorAsync() Method in Node.js43PuppeteerSharp | WaitForXPathAsync() Method44PuppeteerSharp | WaitForXPathAsync() Method in C#45PuppeteerSharp | WaitForXPathAsync() Method in Node.js46PuppeteerSharp | WaitUntilNavigationAsync() Method47PuppeteerSharp | WaitUntilNavigationAsync() Method in C#

QueryObjectsAsync

Using AI Code Generation

1{2    public async Task QueryObjectsAsync_Method()3    {4        using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))5        using (var page = await browser.NewPageAsync())6        {7            await page.EvaluateExpressionAsync("({a: 1, b: 2})");8            var context = await page.GetContextAsync();9            var handle = await context.QueryObjectsAsync(new JSHandle("Object"));10            var properties = await handle.GetPropertiesAsync();11            foreach (var property in properties)12            {13                Console.WriteLine(property.Key);14                Console.WriteLine(property.Value);15            }16        }17    }18}19{20    public async Task QueryObjectsAsync_Method()21    {22        using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))23        using (var page = await browser.NewPageAsync())24        {25            await page.EvaluateExpressionAsync("({a: 1, b: 2})");26            var context = await page.GetContextAsync();27            var handle = await context.QueryObjectsAsync(new JSHandle("Object"));28            var properties = await handle.GetPropertiesAsync();29            foreach (var property in properties)30            {31                Console.WriteLine(property.Key);32                Console.WriteLine(property.Value);33            }34        }35    }36}37{38    public async Task QueryObjectsAsync_Method()39    {40        using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))41        using (var page = await browser.NewPageAsync())42        {43            await page.EvaluateExpressionAsync("({a: 1, b: 2})");44            var context = await page.GetContextAsync();45            var handle = await context.QueryObjectsAsync(new JSHandle("Object"));46            var properties = await handle.GetPropertiesAsync();47            foreach (var property in properties)48            {49                Console.WriteLine(property.Key);50                Console.WriteLine(property.Value);51            }52        }53    }54}

QueryObjectsAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "Array"));3Console.WriteLine(result);4var page = await browser.NewPageAsync();5var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "Map"));6Console.WriteLine(result);7var page = await browser.NewPageAsync();8var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "Set"));9Console.WriteLine(result);10var page = await browser.NewPageAsync();11var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "WeakMap"));12Console.WriteLine(result);13var page = await browser.NewPageAsync();14var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "WeakSet"));15Console.WriteLine(result);16var page = await browser.NewPageAsync();17var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "Int8Array"));18Console.WriteLine(result);19var page = await browser.NewPageAsync();20var result = await page.QueryObjectsAsync(new JSHandle(page.MainFrame, "Uint8Array"));21Console.WriteLine(result);22var page = await browser.NewPageAsync();23var result = await page.QueryObjectsAsync(new

QueryObjectsAsync

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            var result = await page.EvaluateFunctionAsync("() => ({a: 1, b: 2, c: 3})");14            Console.WriteLine(result);15            var res = await page.QueryObjectsAsync(result);16            foreach (var r in res)17            {18                Console.WriteLine(r);19            }20            await browser.CloseAsync();21        }22    }23}

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