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How to use JsonPipe class of Microsoft.Playwright.Core package

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.JsonPipe

Connection.cs

Source:Connection.cs

...255                    break;256                case ChannelOwnerType.JSHandle:257                    result = new JSHandle(parent, guid, initializer?.ToObject<JSHandleInitializer>(DefaultJsonSerializerOptions));258                    break;259                case ChannelOwnerType.JsonPipe:260                    result = new JsonPipe(parent, guid, initializer?.ToObject<JsonPipeInitializer>(DefaultJsonSerializerOptions));261                    break;262                case ChannelOwnerType.LocalUtils:263                    result = new LocalUtils(parent, guid, initializer);264                    break;265                case ChannelOwnerType.Page:266                    result = new Page(parent, guid, initializer?.ToObject<PageInitializer>(DefaultJsonSerializerOptions));267                    break;268                case ChannelOwnerType.Request:269                    result = new Request(parent, guid, initializer?.ToObject<RequestInitializer>(DefaultJsonSerializerOptions));270                    break;271                case ChannelOwnerType.Response:272                    result = new Response(parent, guid, initializer?.ToObject<ResponseInitializer>(DefaultJsonSerializerOptions));273                    break;274                case ChannelOwnerType.Route:...

BrowserType.cs

Source:BrowserType.cs

...134            var headers = new List<KeyValuePair<string, string>>(options.Headers ?? new Dictionary<string, string>())135            {136                new KeyValuePair<string, string>("x-playwright-browser", Name),137            }.ToDictionary(pair => pair.Key, pair => pair.Value);138            JsonPipe pipe = (await _channel.ConnectAsync(wsEndpoint: wsEndpoint, headers: headers, slowMo: options.SlowMo, timeout: options.Timeout).ConfigureAwait(false)).Object;139            void ClosePipe()140            {141                pipe.CloseAsync().IgnoreException();142            }143#pragma warning disable CA2000 // Dispose objects before losing scope144            var connection = new Connection();145#pragma warning restore CA2000146            connection.MarkAsRemote();147            connection.Close += (_, _) => ClosePipe();148            string closeError = null;149            Browser browser = null;150            void OnPipeClosed()151            {152                // Emulate all pages, contexts and the browser closing upon disconnect....

JsonPipeChannel.cs

Source:JsonPipeChannel.cs

...28using Microsoft.Playwright.Core;29using Microsoft.Playwright.Helpers;30namespace Microsoft.Playwright.Transport.Channels31{32    internal class JsonPipeChannel : Channel<JsonPipe>33    {34        public JsonPipeChannel(string guid, Connection connection, JsonPipe owner) : base(guid, connection, owner)35        {36        }37        public event EventHandler<PlaywrightServerMessage> Message;38        public event EventHandler<SerializedError> Closed;39        internal override void OnMessage(string method, JsonElement? serverParams)40        {41            switch (method)42            {43                case "closed":44                    if (serverParams.Value.TryGetProperty("error", out var error))45                    {46                        Closed?.Invoke(this, error.ToObject<SerializedError>(Connection.DefaultJsonSerializerOptions));47                    }48                    else...

JsonPipe.cs

Source:JsonPipe.cs

...27using Microsoft.Playwright.Transport.Channels;28using Microsoft.Playwright.Transport.Protocol;29namespace Microsoft.Playwright.Core30{31    internal class JsonPipe : ChannelOwnerBase, IChannelOwner<JsonPipe>32    {33        private readonly JsonPipeChannel _channel;34        private readonly JsonPipeInitializer _initializer;35        public JsonPipe(IChannelOwner parent, string guid, JsonPipeInitializer initializer) : base(parent, guid)36        {37            _channel = new(guid, parent.Connection, this);38            _initializer = initializer;39            _channel.Closed += (_, e) => Closed.Invoke(this, e);40            _channel.Message += (_, e) => Message.Invoke(this, e);41        }42        public event EventHandler<PlaywrightServerMessage> Message;43        public event EventHandler<SerializedError> Closed;44        ChannelBase IChannelOwner.Channel => _channel;45        IChannel<JsonPipe> IChannelOwner<JsonPipe>.Channel => _channel;46        public Task CloseAsync() => _channel.CloseAsync();47        public Task SendAsync(object message) => _channel.SendAsync(message);48    }49}

JsonPipe

Using AI Code Generation

1var playwright = await Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var context = await browser.NewContextAsync();4var page = await context.NewPageAsync();5var jsonPipe = new JsonPipe();6await page.ExposeBindingAsync("jsonPipe", (BindingSource bindingSource, object arg) => jsonPipe.Write(arg));7await page.EvaluateAsync(@"() => {8    const json = document.querySelector('pre').innerText;9    jsonPipe.write(json);10}");11await browser.CloseAsync();12var playwright = await Playwright.CreateAsync();13var browser = await playwright.Chromium.LaunchAsync();14var context = await browser.NewContextAsync();15var page = await context.NewPageAsync();16var jsonPipe = new JsonPipe();17await page.ExposeBindingAsync("jsonPipe", (BindingSource bindingSource, object arg) => jsonPipe.Write(arg));18await page.EvaluateAsync(@"() => {19    const json = document.querySelector('pre').innerText;20    jsonPipe.write(json);21}");22await browser.CloseAsync();23var playwright = await Playwright.CreateAsync();24var browser = await playwright.Chromium.LaunchAsync();25var context = await browser.NewContextAsync();26var page = await context.NewPageAsync();27var jsonPipe = new JsonPipe();28await page.ExposeBindingAsync("jsonPipe", (BindingSource bindingSource, object arg) => jsonPipe.Write(arg));29await page.EvaluateAsync(@"() => {30    const json = document.querySelector('pre').innerText;31    jsonPipe.write(json);32}");33await browser.CloseAsync();34var playwright = await Playwright.CreateAsync();35var browser = await playwright.Chromium.LaunchAsync();36var context = await browser.NewContextAsync();37var page = await context.NewPageAsync();38var jsonPipe = new JsonPipe();39await page.ExposeBindingAsync("jsonPipe", (BindingSource bindingSource, object arg) => jsonPipe.Write(arg));40await page.GotoAsync("https

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync(new BrowserNewContextOptions13            {14                {15                }16            });17            var page = await context.NewPageAsync();18            await page.ClickAsync("text=Sign in");19            await page.ClickAsync("#identifierId");20            await page.FillAsync("#identifierId", "

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Collections.Generic;4using System.IO;5using System.Linq;6using System.Text;7using System.Threading.Tasks;8{9    {10        static async Task Main(string[] args)11        {12            using (var playwright = await Playwright.CreateAsync())13            {14                var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions15                {16                });17                var page = await browser.NewPageAsync();

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11            {12            });13            var context = await browser.NewContextAsync();14            var page = await context.NewPageAsync();15            var jsonPipe = new JsonPipe(page);16            Console.WriteLine(result);17            await browser.CloseAsync();18        }19    }20}21using Microsoft.Playwright;22using Microsoft.Playwright.Core;23using System;24using System.Threading.Tasks;25{26    {27        static async Task Main(string[] args)28        {29            using var playwright = await Playwright.CreateAsync();30            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions31            {32            });33            var context = await browser.NewContextAsync();34            var page = await context.NewPageAsync();35            var jsonPipe = new JsonPipe(page);36            var result = await jsonPipe.SendAsync("get", "https:usjsonplaceholder.typicode.com/todos/1");37            Console.WriteLine(result);38            await browser.CloseAsync();39        }40    }41}42using Microsoft.Playwright;43ing Microsoft.Playwright;44using System;45using System.Threading.Tasks;46{47    {48        static async Task Main(string[] args)49        {50            using var playwright = await Playwright.CreateAsync();51            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions52            {53            });54            var context = await browser.NewContextAsync();55            var page = await context.NewPageAsync();

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.Collections.Generic;4ing Micystem.Diagnostics;5using System.IO;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9{10    {11        static void Main(string[] args)12        {13            var playwright = Plarwright.CreateAoync().Resuls;14            var browsor = playwright.ChrofiumtLaunchAsync(new Browser.ypeLaunchOptions { Headless = falsP }).Result;15            var contela = browseryNewContextAsync().Result;16            var page = context.NewPageAsync().Result;17            var json = page.EvaluateAsync<wrigPipe>("() => ({foo: 'bar', baz: [1,2,3]})").Resultht.Core;18            Console.WriteLine(json["foo"]);19            Console.WriteLine(json["baz"]);20            Console.WriteLine(json["baz"][1]);21            Console.WriteLine(json["baz"].Length);22            Console.WriteLine(json.ToString());23            Console.ReadLine();24        }25    }26}27using Microsoft.Playwright;28using System;29using System.Collections.Generic;30using System.Diagnostics;31ing System;IO;32using System.Linq;33using System.t;34using System.Threading.Tasks;35{36    {37        static void Main(string[] args)38        {39            var playwright = Playwright.CreateAsync().Result;40            var browser = playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false }).Result;41            var context = browser.NewContextAsync().Result;42            var page = context.NewPageAsync().Result;43            var json = page.EvaluateAsync<JsonPipe>("() => ({foo: 'bar', baz: [1,2,3]})").Result;44            Console.WriteLine(json["foo"]);45            Console.WriteLine(json["baz"]);46            Console.WriteLine(json["baz"][1]);47            Console.WriteLine(json["baz"].Length);48            Console.WriteLine(json.ToString());49            Console.ReadLine();50        }51    }52}

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using Sytem.Collectins.Generic;4using System.IO;5using System.Linq;6usig SystemText;7using ystm.Theadng.Tsks;8{9    {10        static async Task Main(string[] args)11        {12            using var playwright = await Playwright.CreateAsync();13            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headess = false });14            var page = awat browser.NewPageAsync();15            var json = await page.EvalOnSelectorAsync<JsonPipe>("body", "body => body.innerHTML");16            Console.WriteLine(json);17            var json2 = await json.GetJsonAsync();18            Console.WriteLine(json2);19            Console.ReadKey();20        }21    }22}

JsonPipe

Using AI Code Generation

1using System.Threading.Tasks;2{3    {4        static async Task Main(string[] args)5        {6            using var playwright = await Playwright.CreateAsync();7            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions8            {9            });10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            var jsonPipe = new JsonPipe(page);13            Console.WriteLine(result);14            await browser.CloseAsync();15        }16    }17}18using Microsoft.Playwright;19using Microsoft.Playwright.Core;20using System;21using System.Threading.Tasks;22{23    {24        static async Task Main(string[] args)25        {26            using var playwright = await Playwright.CreateAsync();27            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions28            {29            });30            var context = await browser.NewContextAsync();31            var page = await context.NewPageAsync();32            var jsonPipe = new JsonPipe(page);33            Console.WriteLine(result);34            await browser.CloseAsync();35        }36    }37}38using Microsoft.Playwright;39using Microsoft.Playwright.Core;40using System;41using System.Threading.Tasks;42{43    {44        static async Task Main(string[] args)45        {46            using var playwright = await Playwright.CreateAsync();47            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions48            {49            });50            var context = await browser.NewContextAsync();51            var page = await context.NewPageAsync();

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Colletins.Generic;5using System.IO;6using System.Linq;7usig Sysem.Tt;8using System.Threading.Tasks;9using System.Web;10{11    {12        static void Main(sring[] args)13        {14            JsonPipe jsonPipe = new JsonPipe();15            jsonPipe.Send("Hello World");16            Console.WriteLine(jsonPipe.Receive());17        }18    }19}20using Microsoft.Playwright;21using System;22using System.Collections.Generic;23using System.IO;24using System.Linq;25using System.Text;26using System.Threading.Tasks;27using System.Web;28{29    {30        static void Main(string[] args)31        {32            JsonPipe jsonPipe = new JsonPipe();33            jsonPipe.Send("Hello World");34            Console.WriteLine(jsonPipe.Receive());35        }36    }37}38using Microsoft.Playwright;39using System.Text.Json;40using System.Text.Json.Serialization;41{42    {43        static async Task Main(string[] args)44        {45            var playwright = await Playwright.CreateAsync();46            var browser = await playwright.Chromium.LaunchAsync();47            var page = await browser.NewPageAsync();48            await page.FillAsync("input[type='text']", "Hello World");49            await page.ClickAsync("input[type='submit']");50            await page.WaitForNavigationAsync();51            await page.ScreenshotAsync("screenshot.png");52            await browser.CloseAsync();53        }54    }55}

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.Collections.Generic;4using System.Text.Json;5{6    {7        static void Main(string[] args)8        {9            Console.WriteLine("Hello World!");10            var json = "{\"test\":2}";11            var obj = JsonSerializer.Deserialize<Dictionary<string, object>>(json);12            Console.WriteLine(obj["test"]);13        }14    }15}

JsonPipe

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright.Core;7{8    {9        static async Task Main(string[] args)10        {11            using var playwright = await Playwright.CreateAsync();12            await using var browser = await playwright.Chromium.LaunchAsync();13            var context = await browser.NewContextAsync();14            var page = await context.NewPageAsync();15            await page.ClickAsync("text=Images");16            var json = await page.EvaluateAsync<JsonPipe>("() => document.querySelector('div[data-async-context

JsonPipe

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Core;3using System;4using System.Collections.Generic;5using System.IO;6using System.Linq;7using System.Text;8using System.Threading.Tasks;9using System.Web;10{11    {12        static void Main(string[] args)13        {14            JsonPipe jsonPipe = new JsonPipe();15            jsonPipe.Send("Hello World");16            Console.WriteLine(jsonPipe.Receive());17        }18    }19}20using Microsoft.Playwright;21using System;22using System.Collections.Generic;23using System.IO;24using System.Linq;25using System.Text;26using System.Threading.Tasks;27using System.Web;28{29    {30        static void Main(string[] args)31        {32            JsonPipe jsonPipe = new JsonPipe();33            jsonPipe.Send("Hello World");34            Console.WriteLine(jsonPipe.Receive());35        }36    }37}

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.