Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use StdIOTransport class of Microsoft.Playwright.Transport package

Best Playwright-dotnet code snippet using Microsoft.Playwright.Transport.StdIOTransport

StdIOTransport.cs

Source:StdIOTransport.cs

...28using System.Threading.Tasks;29using Microsoft.Playwright.Helpers;30namespace Microsoft.Playwright.Transport31{32    internal class StdIOTransport : IConnectionTransport, IDisposable33    {34        private const int DefaultBufferSize = 1024;  // Byte buffer size35        private readonly Process _process;36        private readonly CancellationTokenSource _readerCancellationSource = new();37        private readonly List<byte> _data = new();38        private int? _currentMessageSize;39        internal StdIOTransport()40        {41            _process = GetProcess();42            _process.StartInfo.Arguments = "run-driver";43            _process.Start();44            _process.Exited += (_, _) => Close("Process exited");45            _process.ErrorDataReceived += (_, error) =>46            {47                if (error.Data != null)48                {49                    LogReceived?.Invoke(this, error.Data);50                }51            };52            _process.BeginErrorReadLine();53            ScheduleTransportTask(GetResponseAsync, _readerCancellationSource.Token);54        }55        /// <inheritdoc cref="IDisposable.Dispose"/>56        ~StdIOTransport() => Dispose(false);57        public event EventHandler<byte[]> MessageReceived;58        public event EventHandler<string> TransportClosed;59        public event EventHandler<string> LogReceived;60        public bool IsClosed { get; private set; }61        /// <inheritdoc/>62        public void Dispose()63        {64            Dispose(true);65            GC.SuppressFinalize(this);66        }67        /// <inheritdoc/>68        public void Close(string closeReason)69        {70            if (!IsClosed)...

Playwright.cs

Source:Playwright.cs

...40        /// <returns>A <see cref="Task"/> that completes when the playwright driver is ready to be used.</returns>41        public static async Task<IPlaywright> CreateAsync()42        {43#pragma warning disable CA2000 // Dispose objects before losing scope44            var transport = new StdIOTransport();45#pragma warning restore CA200046            var connection = new Connection();47            transport.MessageReceived += (_, message) => connection.Dispatch(JsonSerializer.Deserialize<PlaywrightServerMessage>(message, JsonExtensions.DefaultJsonSerializerOptions));48            transport.LogReceived += (_, log) => Console.Error.WriteLine(log);49            transport.TransportClosed += (_, reason) => connection.DoClose(reason);50            connection.OnMessage = (message) => transport.SendAsync(JsonSerializer.SerializeToUtf8Bytes(message, connection.DefaultJsonSerializerOptions));51            connection.Close += (_, reason) => transport.Close(reason);52            var playwright = await connection.InitializePlaywrightAsync().ConfigureAwait(false);53            playwright.Connection = connection;54            return playwright;55        }56    }57}

StdIOTransport

Using AI Code Generation

1using Microsoft.Playwright.Transport;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var transport = new StdIOTransport();9            await transport.ConnectAsync();10            var browser = await transport.WaitForObjectWithKnownNameAsync<Browser>("browser");11            var page = await browser.NewPageAsync();12            await transport.CloseAsync();13        }14    }15}16using Microsoft.Playwright;17using System;18using System.Threading.Tasks;19{20    {21        static async Task Main(string[] args)22        {23            var transport = new StdIOTransport();24            await transport.ConnectAsync();25            var browser = await transport.WaitForObjectWithKnownNameAsync<Browser>("browser");26            var page = await browser.NewPageAsync();27            await transport.CloseAsync();28        }29    }30}31using Microsoft.Playwright;32using System;33using System.Threading.Tasks;34{35    {36        static async Task Main(string[] args)37        {38            var transport = new StdIOTransport();39            await transport.ConnectAsync();40            var browser = await transport.WaitForObjectWithKnownNameAsync<Browser>("browser");41            var page = await browser.NewPageAsync();42            await transport.CloseAsync();43        }44    }45}46using Microsoft.Playwright.Transport;47using System;48using System.Threading.Tasks;49{50    {51        static async Task Main(string[] args)52        {53            var transport = new StdIOTransport();54            await transport.ConnectAsync();55            var browser = await transport.WaitForObjectWithKnownNameAsync<Browser>("browser");56            var page = await browser.NewPageAsync();57            await transport.CloseAsync();58        }59    }60}

StdIOTransport

Using AI Code Generation

1using Microsoft.Playwright.Transport;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8    {9        static async Task Main(string[] args)10        {11            using var transport = new StdIOTransport();12            await transport.StartAsync();13            var connection = new Connection(transport);14            var browser = await connection.WaitForObjectWithKnownNameAsync<Browser>(KnownObjects.Browser);15            Console.WriteLine("Browser started");16            Console.ReadKey();17        }18    }19}20using Microsoft.Playwright.Transport;21using System;22using System.Collections.Generic;23using System.Linq;24using System.Text;25using System.Threading.Tasks;26{27    {28        static async Task Main(string[] args)29        {

StdIOTransport

Using AI Code Generation

1var playwright = await Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions3{4});5var context = await browser.NewContextAsync();6var page = await context.NewPageAsync();7await page.TypeAsync("input[name=q]", "Hello World");8await page.PressAsync("input[name=q]", "Enter");9await page.ScreenshotAsync("google.png");10await browser.CloseAsync();11    <PlaywrightExecutablePath>C:\Users\{user}\.cache\ms-playwright\chromium-856583\playwright-cli.exe</PlaywrightExecutablePath>12    <PlaywrightExecutablePath>C:\Users\{user}\.cache\ms-playwright\chromium-856583\playwright-cli.exe</PlaywrightExecutablePath>

StdIOTransport

Using AI Code Generation

1using Microsoft.Playwright.Transport;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            Console.WriteLine("Hello World!");10            var transport = new StdIOTransport();11            transport.Start();12            var connection = new Connection(transport);13            var browser = await connection.WaitForObjectWithKnownNameAsync<IBrowser>("browser");14            var page = await browser.NewPageAsync();15            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "screenshot.png" });16            await browser.CloseAsync();17        }18    }19}

StdIOTransport

Using AI Code Generation

1var transport = new StdIOTransport();2await transport.StartAsync();3var connection = new Connection(transport);4var playwright = await Playwright.CreateAsync(connection);5var browser = await playwright.Firefox.LaunchAsync();6var page = await browser.NewPageAsync();7await page.ScreenshotAsync(path: "screenshot.png");8await browser.CloseAsync();9await playwright.CloseAsync();10await transport.StopAsync();11var transport = new StdIOTransport();12await transport.StartAsync();13var connection = new Connection(transport);14var playwright = await Playwright.CreateAsync(connection);15var browser = await playwright.Firefox.LaunchAsync();16var page = await browser.NewPageAsync();17await page.ScreenshotAsync(path: "screenshot.png");18await browser.CloseAsync();19await playwright.CloseAsync();20await transport.StopAsync();21var transport = new StdIOTransport();22await transport.StartAsync();23var connection = new Connection(transport);24var playwright = await Playwright.CreateAsync(connection);25var browser = await playwright.Firefox.LaunchAsync();26var page = await browser.NewPageAsync();27await page.ScreenshotAsync(path: "screenshot.png");28await browser.CloseAsync();29await playwright.CloseAsync();

StdIOTransport

Using AI Code Generation

1using Microsoft.Playwright.Transport;2using Microsoft.Playwright.Transport.Channels;3using Microsoft.Playwright.Transport.Protocol;4using System;5using System.IO;6using System.Threading.Tasks;7{8    {9        static async Task Main(string[] args)10        {11            var transport = new StdIOTransport();12            await transport.StartAsync();13            var connection = new Connection(transport, null);14            var browser = await connection.WaitForObjectWithKnownNameAsync<BrowserChannel>(Guid.NewGuid().ToString());15            var context = await browser.NewContextAsync();16            var page = await context.NewPageAsync();17            var content = await response.TextAsync();18            Console.WriteLine(content);19            await browser.CloseAsync();20            await connection.CloseAsync();21        }22    }23}24using Microsoft.Playwright;25using System;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            var playwright = await Playwright.CreateAsync();32            var browser = await playwright.Chromium.LaunchAsync();33            var context = await browser.NewContextAsync();34            var page = await context.NewPageAsync();35            var content = await response.TextAsync();36            Console.WriteLine(content);37            await browser.CloseAsync();38            await playwright.CloseAsync();39        }40    }41}

StdIOTransport

Using AI Code Generation

1using Microsoft.Playwright.Transport;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            StdIOTransport transport = new StdIOTransport();10            StdIOTransportOptions options = new StdIOTransportOptions();11            options.ExecutablePath = @"C:\Users\user\source\repos\PlaywrightTest\PlaywrightTest\bin\Debug\netcoreapp3.1\playwright.cmd";12            options.DriverExecutablePath = @"C:\Users\user\source\repos\PlaywrightTest\PlaywrightTest\bin\Debug\netcoreapp3.1\Microsoft.Playwright.dll";13            transport.SetOptions(options);14            await transport.StartAsync();15            await transport.SendAsync("Playwright.version", null);16            var response = await transport.ReadMessageAsync();17            Console.WriteLine(response);18            await transport.StopAsync();19        }20    }21}22{"id":1,"method":"Playwright.version","params":{}}23{"id":1,"result":{"product":"playwright-sharp","version":"0.170.1"}}24using Microsoft.Playwright.Transport;25using System;26using System.IO;27using System.Threading.Tasks;28{29    {30        static async Task Main(string[] args)31        {32            StdIOTransport transport = new StdIOTransport();33            StdIOTransportOptions options = new StdIOTransportOptions();

StdIOTransport

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright.Transport;4using Microsoft.Playwright.Transport.Channels;5using Microsoft.Playwright.Transport.Protocol;6{7    {8        static async Task Main(string[] args)9        {10            var transport = new StdIOTransport();11            var connection = new Connection(transport);12            var playwright = await connection.WaitForObjectWithKnownNameAsync<PlaywrightImpl>("Playwright");13            var browser = await playwright.Chromium.LaunchAsync();14            var context = await browser.NewContextAsync();15            var page = await context.NewPageAsync();16            await page.GotoAsync("

StdIOTransport

Using AI Code Generation

1using Microsoft.Playwright.Transport;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            string driverPath = @"C:\Users\user\source\repos\PlaywrightTransport\PlaywrightTransport\bin\Debug\net5.0\playwright";10            string browserPath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";11            string browserExecutable = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";12            string browserExecutableArgs = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";13            string browserExecutableDir = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";14            string browserChannel = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";15            string browserEnv = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";16            string browserStdio = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";17            string browserSlowMo = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";18            string browserHeadless = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";19            string browserDevtools = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";20            string browserWSEndpoint = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";21            string browserProxy = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";22            string browserIgnoreHTTPSErrors = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";

StdIOTransport

Using AI Code Generation

1using System;2using System.Text;3using Microsoft.Playwright.Transport;4using Microsoft.Playwright.Transport.Channels;5using Microsoft.Playwright.Transport.Protocol;6{7    {8        static void Main(string[] args)9        {10            Console.WriteLine("Hello World!");11            Console.WriteLine("Press any key to continue");12            Console.ReadKey();13            var transport = new StdIOTransport();14            transport.MessageReceived += Transport_MessageReceived;15            transport.Start();16            var browser = transport.GetBrowser();17            var browserContext = browser.NewContextAsync().Result;18            var page = browserContext.NewPageAsync().Result;19            page.WaitForLoadStateAsync(LoadState.DOMContentLoaded).Wait();20            Console.WriteLine("Press any key to continue");21            Console.ReadKey();22        }23        private static void Transport_MessageReceived(object sender, MessageReceivedEventArgs e)24        {25            Console.WriteLine($"message received: {e.Message}");26        }27    }28}

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.