How to use WriteJson method of PuppeteerSharp.Helpers.Json.JSHandleMethodConverter class

Best Puppeteer-sharp code snippet using PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.WriteJson

JSHandleMethodConverter.cs

Source: JSHandleMethodConverter.cs Github

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...9 {10 public override bool CanConvert(Type objectType) => false;11 public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)12 => null;13 public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)14 => throw new EvaluationFailedException("Unable to make function call. Are you passing a nested JSHandle?");15 }16}...

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WriteJson

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using PuppeteerSharp.Helpers.Json;5{6 {7 public override bool CanConvert(Type objectType)8 {9 return objectType == typeof(JSHandle);10 }11 public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)12 {13 throw new NotImplementedException();14 }15 public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)16 {17 var jsHandle = (JSHandle)value;18 writer.WriteStartObject();19 writer.WritePropertyName("type");20 writer.WriteValue(jsHandle.Type);21 writer.WritePropertyName("value");22 serializer.Serialize(writer, jsHandle.Value);23 writer.WriteEndObject();24 }25 }26}27using System;28using System.Threading.Tasks;29using PuppeteerSharp;30using PuppeteerSharp.Helpers.Json;31{32 {33 public override bool CanConvert(Type objectType)34 {35 return objectType == typeof(JSHandle);36 }37 public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)38 {39 throw new NotImplementedException();40 }41 public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)42 {43 var jsHandle = (JSHandle)value;44 writer.WriteStartObject();45 writer.WritePropertyName("type");46 writer.WriteValue(jsHandle.Type);47 writer.WritePropertyName("value");48 serializer.Serialize(writer, jsHandle.Value);49 writer.WriteEndObject();50 }51 }52}53using System;54using System.Threading.Tasks;55using PuppeteerSharp;56using PuppeteerSharp.Helpers.Json;57{58 {59 public override bool CanConvert(Type objectType)60 {61 return objectType == typeof(JSHandle);62 }63 public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)64 {65 throw new NotImplementedException();66 }67 public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)68 {

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WriteJson

Using AI Code Generation

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1using PuppeteerSharp.Helpers.Json;2using System;3using System.Collections.Generic;4using System.IO;5using System.Text;6using System.Threading.Tasks;7{8 {9 public static async Task WriteJson<T>(this JSHandle handle, T value, JsonSerializerOptions options = null)10 {11 var json = JsonSerializer.Serialize(value, options);12 await handle.EvaluateFunctionAsync("value => value.json = JSON.parse(value.json)", new13 {14 }).ConfigureAwait(false);15 }16 }17}18using PuppeteerSharp.Helpers.Json;19using System;20using System.Collections.Generic;21using System.IO;22using System.Text;23using System.Threading.Tasks;24{25 {26 public static async Task<T> ReadJson<T>(this JSHandle handle, JsonSerializerOptions options = null)27 {28 var json = await handle.EvaluateFunctionAsync<string>("value => JSON.stringify(value.json)", handle).ConfigureAwait(false);29 return JsonSerializer.Deserialize<T>(json, options);30 }31 }32}33using PuppeteerSharp.Helpers.Json;34using System;35using System.Collections.Generic;36using System.IO;37using System.Text;38using System.Threading.Tasks;39{40 {41 public string Name { get; set; }42 public int Age { get; set; }43 public string Address { get; set; }44 }45 {46 public static async Task Main(string[] args)47 {48 {49 };50 var browser = await Puppeteer.LaunchAsync(options).ConfigureAwait(false);51 var page = await browser.NewPageAsync().ConfigureAwait(false);52 {53 };54 var testHandle = await page.EvaluateExpressionHandleAsync("({})").ConfigureAwait(false);55 await testHandle.WriteJson(testObj).ConfigureAwait(false);

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WriteJson

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1using PuppeteerSharp;2using PuppeteerSharp.Helpers.Json;3using System;4using System.IO;5using System.Threading.Tasks;6{7 {8 static async Task Main(string[] args)9 {10 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);11 var browser = await Puppeteer.LaunchAsync(new LaunchOptions12 {13 });14 var page = await browser.NewPageAsync();15 var searchBox = await page.QuerySelectorAsync("input[name='q']");16 await searchBox.TypeAsync("PuppeteerSharp");17 var button = await page.QuerySelectorAsync("input[type='submit']");18 await button.ClickAsync();19 var data = await page.EvaluateFunctionAsync<JSHandle>("() => ({foo: 'bar'})");20 var json = data.WriteJson();21 File.WriteAllText(@"c:\temp\json.txt", json);22 Console.WriteLine("JSON written to file");23 await browser.CloseAsync();24 }25 }26}

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WriteJson

Using AI Code Generation

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1var page = await browser.NewPageAsync();2var searchBox = await page.QuerySelectorAsync("input[title='Search']");3await searchBox.TypeAsync("Hello World!");4var button = await page.QuerySelectorAsync("input[name='btnK']");5await button.ClickAsync();6var json = await button.WriteJsonAsync();7Console.WriteLine(json);8var jsonAsync = await button.WriteJsonAsync();9Console.WriteLine(jsonAsync);10var jsonAsync = await button.WriteJsonAsync(new JsonConverter[] { new StringEnumConverter() });11Console.WriteLine(jsonAsync);12var jsonAsync = await button.WriteJsonAsync(new JsonSerializerSettings() { ContractResolver = new CamelCasePropertyNamesContractResolver() });13Console.WriteLine(jsonAsync);14var jsonAsync = await button.WriteJsonAsync(new JsonSerializerSettings() { ContractResolver = new CamelCasePropertyNamesContractResolver() }, new JsonConverter[] { new StringEnumConverter() });15Console.WriteLine(jsonAsync);16var jsonAsync = await button.WriteJsonAsync(new JsonSerializerSettings() { ContractResolver = new CamelCasePropertyNamesContractResolver() }, new JsonConverter[] { new StringEnumConverter() }, Formatting.Indented);17Console.WriteLine(jsonAsync);18var jsonAsync = await button.WriteJsonAsync(new JsonSerializerSettings() { ContractResolver = new CamelCasePropertyNamesContractResolver() }, new JsonConverter[] { new StringEnumConverter() }, Formatting.Indented, new CancellationTokenSource(2000).Token);19Console.WriteLine(jsonAsync);20var jsonAsync = await button.WriteJsonAsync(new JsonSerializerSettings() { ContractResolver = new CamelCasePropertyNamesContractResolver() }, new JsonConverter[] { new StringEnumConverter() }, Formatting

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WriteJson

Using AI Code Generation

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1var page = await browser.NewPageAsync();2await page.SetContentAsync("<html><body><div id='target'>Target</​div></​body></​html>");3var target = await page.QuerySelectorAsync("#target");4var json = await target.WriteJsonAsync();5Console.WriteLine(json);6{"type":"node","description":"DIV","objectId":"{\"injectedScriptId\":1,\"id\":2}"}7var page = await browser.NewPageAsync();8await page.SetContentAsync("<html><body><div id='target'>Target</​div></​body></​html>");9var target = await page.QuerySelectorAsync("#target");10var json = await target.GetPropertiesAsync();11Console.WriteLine(json);12{"type":"object","subtype":"map","className":"Object","description":"Object","objectId":"{\"injectedScriptId\":1,\"id\":2}"}13var page = await browser.NewPageAsync();14await page.SetContentAsync("<html><body><div id='target'>Target</​div></​body></​html>");15var target = await page.QuerySelectorAsync("#target");16var json = await target.GetPropertiesAsync();17Console.WriteLine(json);18{"type":"object","subtype":"map","className":"Object","description":"Object","objectId":"{\"injectedScriptId\":1,\"id\":2}"}19var page = await browser.NewPageAsync();20await page.SetContentAsync("<html><body><div id='target'>Target</​div></​body></​html>");21var target = await page.QuerySelectorAsync("#target");22var json = await target.GetPropertiesAsync();23Console.WriteLine(json);24{"type":"object","subtype":"map","className":"Object","description":"Object","objectId":"{\"injectedScriptId\":1,\"id\":2}"}25var page = await browser.NewPageAsync();26await page.SetContentAsync("<html><body><div id='target'>Target</​div></​body></​html>");

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WriteJson

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1var json = await page.EvaluateFunctionAsync<JsonElement>("() => {2 return {3 e: {4 },5 i: new Date()6 };7}");8var jsonStr = PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.WriteJson(json);9Console.WriteLine(jsonStr);10var jsonStr = @"{11 ""e"": {12 },13}";14var json = PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.ReadJson(jsonStr);15var jsonStr2 = PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.WriteJson(json);16Console.WriteLine(jsonStr2);17var jsonStr = @"{18 ""e"": {19 },20}";21var json = PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.ReadJson(jsonStr);22var jsonStr2 = PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.WriteJson(json);

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WriteJson

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1var page = await browser.NewPageAsync();2var data = new { name = "PuppeteerSharp", age = 5 };3await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");4await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");5var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");6Console.WriteLine(result);7var page = await browser.NewPageAsync();8var data = new { name = "PuppeteerSharp", age = 5 };9await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");10await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");11var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");12Console.WriteLine(result);13var page = await browser.NewPageAsync();14var data = new { name = "PuppeteerSharp", age = 5 };15await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");16await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");17var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");18Console.WriteLine(result);19var page = await browser.NewPageAsync();20var data = new { name = "PuppeteerSharp", age = 5 };21await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");22await page.EvaluateExpressionAsync($"document.querySelector('#result

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WriteJson

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browserFetcher = new BrowserFetcher();9 await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10 var browser = await Puppeteer.LaunchAsync(new LaunchOptions11 {12 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)13 });14 var page = await browser.NewPageAsync();15 var json = await page.EvaluateExpressionAsync<string>("JSON.stringify({a: 1, b: 2})");16 Console.WriteLine(json);17 await browser.CloseAsync();18 }19 }20}21var jsonStr2 = PuppeteerSharp.Helpers.Json.JSHandleMethodConverter.WriteJson(json);

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WriteJson

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1var page = await browser.NewPageAsync();2var data = new { name = "PuppeteerSharp", age = 5 };3await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");4await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");5var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");6Console.WriteLine(result);7var page = await browser.NewPageAsync();8var data = new { name = "PuppeteerSharp", age = 5 };9await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");10await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");11var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");12Console.WriteLine(result);13var page = await browser.NewPageAsync();14var data = new { name = "PuppeteerSharp", age = 5 };15await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");16await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");17var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");18Console.WriteLine(result);19var page = await browser.NewPageAsync();20var data = new { name = "PuppeteerSharp", age = 5 };21await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");22await page.EvaluateExpressionAsync($"document.querySelector('#result

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WriteJson

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browserFetcher = new BrowserFetcher();9 await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10 var browser = await Puppeteer.LaunchAsync(new LaunchOptions11 {12 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)13 });14 var page = await browser.NewPageAsync();15 var json = await page.EvaluateExpressionAsync<string>("JSON.stringify({a: 1, b: 2})");16 Console.WriteLine(json);17 await browser.CloseAsync();18 }19 }20}21var page = await browser.NewPageAsync();22var data = new { name = "PuppeteerSharp", age = 5 };23await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");24await page.EvaluateExpressionAsync($"document.querySelector('#result').textContent = {Json.JSHandleMethodConverter.WriteJson(data)}");25var result = await page.EvaluateExpressionAsync<string>("document.querySelector('#result').textContent");26Console.WriteLine(result);27var page = await browser.NewPageAsync();28var data = new { name = "PuppeteerSharp", age = 5 };29await page.SetContentAsync($"<html><body><pre id='result'></​pre></​body></​html>");30await page.EvaluateExpressionAsync($"document.querySelector('#result

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WriteJson

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browserFetcher = new BrowserFetcher();9 await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10 var browser = await Puppeteer.LaunchAsync(new LaunchOptions11 {12 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)13 });14 var page = await browser.NewPageAsync();15 var json = await page.EvaluateExpressionAsync<string>("JSON.stringify({a: 1, b: 2})");16 Console.WriteLine(json);17 await browser.CloseAsync();18 }19 }20}

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WriteJson

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browserFetcher = new BrowserFetcher();9 await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10 var browser = await Puppeteer.LaunchAsync(new LaunchOptions11 {12 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)13 });14 var page = await browser.NewPageAsync();15 var json = await page.EvaluateExpressionAsync<string>("JSON.stringify({a: 1, b: 2})");16 Console.WriteLine(json);17 await browser.CloseAsync();18 }19 }20}

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WriteJson

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 var browserFetcher = new BrowserFetcher();9 await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10 var browser = await Puppeteer.LaunchAsync(new LaunchOptions11 {12 ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)13 });14 var page = await browser.NewPageAsync();15 var json = await page.EvaluateExpressionAsync<string>("JSON.stringify({a: 1, b: 2})");16 Console.WriteLine(json);17 await browser.CloseAsync();18 }19 }20}

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StackOverFlow community discussions

Questions
Discussion

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PuppeteerSharp evaluate expression to complex type?

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Cancel Downloading in PuppeteerSharp

Get Result of document.querySelectorAll in PuppeteerSharp

using below,

using var page = browser.NewPageAsync().Result;

page.TypeAsync("input[name='elementname']", valuetobeset).Wait();
https://stackoverflow.com/questions/67332554/set-input-value-with-puppeteer-sharp

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