How to use JsonValueAsync method of PuppeteerSharp.JSHandle class

Best Puppeteer-sharp code snippet using PuppeteerSharp.JSHandle.JsonValueAsync

PageCTL.cs

Source:PageCTL.cs

...282            try283            {284                ElementHandle element = await mPage.QuerySelectorAsync(selector);285                JSHandle handler = await element.GetPropertyAsync("classList");286                Dictionary<string, string> value = await handler.JsonValueAsync<Dictionary<string, string>>();287                string[] result = new string[value.Count];288                value.Values.CopyTo(result, 0);289                return result;290            }291            catch292            {293                return null;294            }295        }296        public async Task<string> GetElementClassStringAsync(string selector)297        {298            try299            {300                ElementHandle element = await mPage.QuerySelectorAsync(selector);301                JSHandle handler = await element.GetPropertyAsync("classList");302                object value = await handler.JsonValueAsync();303                return value.ToString();304            }305            catch306            {307                return null;308            }309        }310        public async Task<string> GetURLAsync(int times = 3, int delay = 3000)311        {312            do313            {314                try315                {316                    return await mPage.EvaluateFunctionAsync<string>(@"...

JSHandle.cs

Source:JSHandle.cs

...97        /// <returns>Task</returns>98        /// <remarks>99        /// The method will return an empty JSON if the referenced object is not stringifiable. It will throw an error if the object has circular references100        /// </remarks>101        public async Task<object> JsonValueAsync() => await JsonValueAsync<object>().ConfigureAwait(false);102        /// <summary>103        /// Returns a JSON representation of the object104        /// </summary>105        /// <typeparam name="T">A strongly typed object to parse to</typeparam>106        /// <returns>Task</returns>107        /// <remarks>108        /// The method will return an empty JSON if the referenced object is not stringifiable. It will throw an error if the object has circular references109        /// </remarks>110        public async Task<T> JsonValueAsync<T>()111        {112            var objectId = RemoteObject[MessageKeys.ObjectId];113            if (objectId != null)114            {115                var response = await Client.SendAsync("Runtime.callFunctionOn", new Dictionary<string, object>116                {117                    ["functionDeclaration"] = "function() { return this; }",118                    [MessageKeys.ObjectId] = objectId,119                    ["returnByValue"] = true,120                    ["awaitPromise"] = true121                }).ConfigureAwait(false);122                return (T)RemoteObjectHelper.ValueFromRemoteObject<T>(response[MessageKeys.Result]);123            }124            return (T)RemoteObjectHelper.ValueFromRemoteObject<T>(RemoteObject);...

TinEyeEngine.cs

Source:TinEyeEngine.cs

...14public static class WebDriverExtensions15{16	public static string ToValueString(this JSHandle h)17	{18		// return h.JsonValueAsync().GetAwaiter().GetResult().ToString();19		return h.ToString().Replace("jshandle:", string.Empty, StringComparison.InvariantCultureIgnoreCase);20	}21}22public sealed class TinEyeEngine : WebDriverSearchEngine23{24	public TinEyeEngine() : base("https://www.tineye.com/search?url=") { }25	26	public override SearchEngineOptions EngineOption => SearchEngineOptions.TinEye;27	public override EngineSearchType SearchType => EngineSearchType.Image;28	public override void Dispose() { }29	protected override async Task<List<ImageResult>> BrowseAsync(ImageQuery sd, SearchResult r)30	{31		PuppeteerExtra extra = await GetBrowserAsync();32		await using Browser browser = await extra.LaunchAsync(new LaunchOptions...

ConsoleTests.cs

Source:ConsoleTests.cs

...25            26            var obj = new Dictionary<string, object> {{"foo", "bar"}};27            Assert.Equal("hello 5 JSHandle@object", message.Text);28            Assert.Equal(ConsoleType.Log, message.Type);29            Assert.Equal("hello", await message.Args[0].JsonValueAsync());30            Assert.Equal(5, await message.Args[1].JsonValueAsync<float>());31            Assert.Equal(obj, await message.Args[2].JsonValueAsync<Dictionary<string, object>>());32            Assert.Equal("bar", (await message.Args[2].JsonValueAsync<dynamic>()).foo.ToString());33        }34        [Fact]35        public async Task ShouldWorkForDifferentConsoleApiCalls()36        {37            var messages = new List<ConsoleMessage>();38            Page.Console += (sender, e) => messages.Add(e.Message);39            await Page.EvaluateFunctionAsync(@"() => {40              // A pair of time/timeEnd generates only one Console API call.41              console.time('calling console.time');42              console.timeEnd('calling console.time');43              console.trace('calling console.trace');44              console.dir('calling console.dir');45              console.warn('calling console.warn');46              console.error('calling console.error');...

JsonValueTests.cs

Source:JsonValueTests.cs

...16        [PuppeteerFact]17        public async Task ShouldWork()18        {19            var aHandle = await Page.EvaluateExpressionHandleAsync("({ foo: 'bar'})");20            var json = await aHandle.JsonValueAsync();21            Assert.Equal(JObject.Parse("{ foo: 'bar' }"), json);22        }23        [PuppeteerTest("jshandle.spec.ts", "JSHandle.jsonValue", "works with jsonValues that are not objects")]24        [SkipBrowserFact(skipFirefox: true)]25        public async Task WorksWithJsonValuesThatAreNotObjects()26        {27            var aHandle = await Page.EvaluateFunctionHandleAsync("() => ['a', 'b']");28            var json = await aHandle.JsonValueAsync<string[]>();29            Assert.Equal(new[] {"a","b" }, json);30        }31        [PuppeteerTest("jshandle.spec.ts", "JSHandle.jsonValue", "works with jsonValues that are primitives")]32        [SkipBrowserFact(skipFirefox: true)]33        public async Task WorksWithJsonValuesThatArePrimitives()34        {35            var aHandle = await Page.EvaluateFunctionHandleAsync("() => 'foo'");36            var json = await aHandle.JsonValueAsync<string>();37            Assert.Equal("foo", json);38        }39        [PuppeteerTest("jshandle.spec.ts", "JSHandle.jsonValue", "should not work with dates")]40        [SkipBrowserFact(skipFirefox: true)]41        public async Task ShouldNotWorkWithDates()42        {43            var dateHandle = await Page.EvaluateExpressionHandleAsync("new Date('2017-09-26T00:00:00.000Z')");44            var json = await dateHandle.JsonValueAsync();45            Assert.Equal(JObject.Parse("{}"), json);46        }47        [PuppeteerTest("jshandle.spec.ts", "JSHandle.jsonValue", "should throw for circular objects")]48        [PuppeteerFact]49        public async Task ShouldThrowForCircularObjects()50        {51            var windowHandle = await Page.EvaluateExpressionHandleAsync("window");52            var exception = await Assert.ThrowsAsync<MessageException>(()53                => windowHandle.JsonValueAsync());54            Assert.Contains(TestConstants.IsChrome ? "Object reference chain is too long" : "Object is not serializable", exception.Message);55        }56    }57}...

GetPropertiesTests.cs

Source:GetPropertiesTests.cs

...20            })");21            var properties = await aHandle.GetPropertiesAsync();22            properties.TryGetValue("foo", out var foo);23            Assert.NotNull(foo);24            Assert.Equal("bar", await foo.JsonValueAsync<string>());25        }26        [PuppeteerTest("jshandle.spec.ts", "JSHandle.getProperties", "should return even non-own properties")]27        [PuppeteerFact]28        public async Task ShouldReturnEvenNonOwnProperties()29        {30            var aHandle = await Page.EvaluateFunctionHandleAsync(@"() => {31              class A {32                constructor() {33                  this.a = '1';34                }35              }36              class B extends A {37                constructor() {38                  super();39                  this.b = '2';40                }41              }42              return new B();43            }");44            var properties = await aHandle.GetPropertiesAsync();45            Assert.Equal("1", await properties["a"].JsonValueAsync<string>());46            Assert.Equal("2", await properties["b"].JsonValueAsync<string>());47        }48    }49}...

HandleExtensions.cs

Source:HandleExtensions.cs

...21        public static async Task<T> GetPropertyValue<T>(this JSHandle elementHandle, string property)22        {23            await using var propertyAsync = await elementHandle.GetPropertyAsync(property);24            if (propertyAsync != null)25                return await propertyAsync.JsonValueAsync<T>();26            return default;27        }28    }29}...

GetPropertyTests.cs

Source:GetPropertyTests.cs

...20              two: 2,21              three: 322            })");23            var twoHandle = await aHandle.GetPropertyAsync("two");24            Assert.Equal(2, await twoHandle.JsonValueAsync<int>());25        }26    }27}...

JsonValueAsync

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 jsHandle = await page.EvaluateExpressionHandleAsync("document");11            var jsonValue = await jsHandle.JsonValueAsync();12            Console.WriteLine(jsonValue);13            await browser.CloseAsync();14        }15    }16}17{document: {…}, location: {…}, event: {…}, customElements: {…}, history: {…}, locationbar: {…}, menubar: {…}, …}

JsonValueAsync

Using AI Code Generation

1var jsonValue = await jsHandle.JsonValueAsync();2Console.WriteLine(jsonValue);3var jsonValue = await page.JsonValueAsync("window.location.href");4Console.WriteLine(jsonValue);5var jsonValue = await frame.JsonValueAsync("window.location.href");6Console.WriteLine(jsonValue);7var jsonValue = await elementHandle.JsonValueAsync();8Console.WriteLine(jsonValue);9var jsonValue = await jsHandle.JsonValueAsync();10Console.WriteLine(jsonValue);11var jsonValue = await page.JsonValueAsync("window.location.href");12Console.WriteLine(jsonValue);13var jsonValue = await frame.JsonValueAsync("window.location.href");14Console.WriteLine(jsonValue);15var jsonValue = await elementHandle.JsonValueAsync();16Console.WriteLine(jsonValue);17var jsonValue = await jsHandle.JsonValueAsync();18Console.WriteLine(jsonValue);19var jsonValue = await page.JsonValueAsync("window.location.href");20Console.WriteLine(jsonValue);21var jsonValue = await frame.JsonValueAsync("window.location.href");22Console.WriteLine(jsonValue);23var jsonValue = await elementHandle.JsonValueAsync();24Console.WriteLine(jsonValue);25var jsonValue = await jsHandle.JsonValueAsync();26Console.WriteLine(jsonValue);

JsonValueAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html')");3var jsonValue = await jsonHandle.JsonValueAsync();4await page.CloseAsync();5var page = await browser.NewPageAsync();6var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html')");7var jsonValue = await jsonHandle.JsonValueAsync();8await page.CloseAsync();9var page = await browser.NewPageAsync();10var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html')");11var jsonValue = await jsonHandle.JsonValueAsync();12await page.CloseAsync();13var page = await browser.NewPageAsync();14var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html')");15var jsonValue = await jsonHandle.JsonValueAsync();16await page.CloseAsync();17var page = await browser.NewPageAsync();18var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html')");19var jsonValue = await jsonHandle.JsonValueAsync();20await page.CloseAsync();21var page = await browser.NewPageAsync();22var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html')");23var jsonValue = await jsonHandle.JsonValueAsync();24await page.CloseAsync();25var page = await browser.NewPageAsync();26var jsonHandle = await page.EvaluateExpressionHandleAsync("document.querySelector('html

JsonValueAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2var result = await page.EvaluateFunctionAsync<JSHandle>("() => document.querySelector('input[name=q]')");3var value = await result.JsonValueAsync();4Console.WriteLine(value);5var page = await browser.NewPageAsync();6var result = await page.EvaluateFunctionAsync<JSHandle>("() => document.querySelector('input[name=q]')");7var value = await result.JsonValueAsync();8Console.WriteLine(value);9var page = await browser.NewPageAsync();10var result = await page.EvaluateFunctionAsync<JSHandle>("() => document.querySelector('input[name=q]')");11var value = await result.JsonValueAsync();12Console.WriteLine(value);13var page = await browser.NewPageAsync();14var result = await page.EvaluateFunctionAsync<JSHandle>("() => document.querySelector('input[name=q]')");15var value = await result.JsonValueAsync();16Console.WriteLine(value);17var page = await browser.NewPageAsync();18var result = await page.EvaluateFunctionAsync<JSHandle>("() => document.querySelector('input[name=q]')");19var value = await result.JsonValueAsync();20Console.WriteLine(value);

JsonValueAsync

Using AI Code Generation

1var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");2var jsonValue = json.JsonValueAsync();3Console.WriteLine(jsonValue.Result.ToString());4var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");5var jsonValue = await json.JsonValueAsync();6Console.WriteLine(jsonValue.ToString());7var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");8var jsonValue = await json.JsonValueAsync();9Console.WriteLine(jsonValue.ToString());10var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");11var jsonValue = await json.JsonValueAsync();12Console.WriteLine(jsonValue.ToString());13var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");14var jsonValue = await json.JsonValueAsync();15Console.WriteLine(jsonValue.ToString());16var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");17var jsonValue = await json.JsonValueAsync();18Console.WriteLine(jsonValue.ToString());19var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");20var jsonValue = await json.JsonValueAsync();21Console.WriteLine(jsonValue.ToString());22var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");23var jsonValue = await json.JsonValueAsync();24Console.WriteLine(jsonValue.ToString());25var json = await page.EvaluateExpressionAsync("document.querySelector('body').innerText");26var jsonValue = await json.JsonValueAsync();27Console.WriteLine(jsonValue.ToString());

JsonValueAsync

Using AI Code Generation

1var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");2Console.WriteLine(jsonValue.ToString());3var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");4Console.WriteLine(jsonValue.ToString());5var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");6Console.WriteLine(jsonValue.ToString());7var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");8Console.WriteLine(jsonValue.ToString());9var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");10Console.WriteLine(jsonValue.ToString());11var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");12Console.WriteLine(jsonValue.ToString());13var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");14Console.WriteLine(jsonValue.ToString());15var jsonValue = await page.EvaluateFunctionAsync<JsonValue>("() => { return { foo: 'bar' }; }");16Console.WriteLine(jsonValue.ToString());

JsonValueAsync

Using AI Code Generation

1var jsonValue = await page.EvaluateFunctionAsync("() => {2    return {a: 1, b: 2};3}");4var jsonValue = await page.JsonValueAsync("() => {5    return {a: 1, b: 2};6}");7var jsonValue = await page.EvaluateFunctionAsync("() => {8    return {a: 1, b: 2};9}");10var jsonValue = await page.JsonValueAsync("() => {11    return {a: 1, b: 2};12}");13var jsonValue = await page.EvaluateFunctionAsync("() => {14    return {a: 1, b: 2};15}");16var jsonValue = await page.JsonValueAsync("() => {17    return {a: 1, b: 2};18}");19var jsonValue = await page.EvaluateFunctionAsync("() => {20    return {a: 1, b: 2};21}");22Console.WriteLine(jsonValue.Get("b").ToString());

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