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How to use SendAsync method of Microsoft.Playwright.Transport.StdIOTransport class

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

StdIOTransport.cs

Source:StdIOTransport.cs

...75                _process.StandardInput.Close();76                _process.WaitForExit();77            }78        }79        public async Task SendAsync(byte[] message)80        {81            try82            {83                if (!_readerCancellationSource.IsCancellationRequested)84                {85                    int len = message.Length;86                    byte[] ll = new byte[4];87                    ll[0] = (byte)(len & 0xFF);88                    ll[1] = (byte)((len >> 8) & 0xFF);89                    ll[2] = (byte)((len >> 16) & 0xFF);90                    ll[3] = (byte)((len >> 24) & 0xFF);91#pragma warning disable CA1835 // We can't use ReadOnlyMemory on netstandard92                    await _process.StandardInput.BaseStream.WriteAsync(ll, 0, 4, _readerCancellationSource.Token).ConfigureAwait(false);93                    await _process.StandardInput.BaseStream.WriteAsync(message, 0, len, _readerCancellationSource.Token).ConfigureAwait(false);...

Playwright.cs

Source:Playwright.cs

...46            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}
...

SendAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            await page.ScreenshotAsync(path: "example.png");12            await browser.CloseAsync();13        }14    }15}

SendAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright.Transport;4{5    {6        static async Task Main(string[] args)7        {8            var transport = new StdIOTransport("C:\\Program Files (x86)\\Microsoft\\Edge\\Application\\msedge.exe");9            await transport.SendAsync(new Message { Method = "Playwright.version" });10        }11    }12}13using System;14using System.Threading.Tasks;15using Microsoft.Playwright.Transport;16{17    {18        static async Task Main(string[] args)19        {20            await transport.SendAsync(new Message { Method = "Playwright.version" });21        }22    }23}24using System;25using System.Threading.Tasks;26using Microsoft.Playwright.Transport;27{28    {29        static async Task Main(string[] args)30        {31            var transport = new NamedPipeTransport("playwright");32            await transport.SendAsync(new Message { Method = "Playwright.version" });33        }34    }35}36using System;37using System.Threading.Tasks;38using Microsoft.Playwright.Transport;39{40    {41        static async Task Main(string[] args)42        {43            var transport = new TcpTransport("localhost", 8080);44            await transport.SendAsync(new Message { Method = "Playwright.version" });45        }46    }47}48using System;49using System.Threading.Tasks;50using Microsoft.Playwright.Transport;51{52    {53        static async Task Main(string[] args)54        {55            var transport = new TcpTransport("localhost", 8080);56            await transport.SendAsync(new Message { Method = "Playwright.version" });57        }58    }59}60using System;

SendAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ClickAsync("text=Get started");14            await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded);15            await page.ClickAsync("text=C#");16            await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded);17            await page.ClickAsync("text=Page.GotoAsync");18            await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded);19            await browser.CloseAsync();20        }21    }22}23using System;24using System.Threading.Tasks;25using Microsoft.Playwright;26{27    {28        static async Task Main(string[] args)29        {30            using var playwright = await Playwright.CreateAsync();31            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions32            {33            });34            var page = await browser.NewPageAsync();35            await page.ClickAsync("text=Get started");

SendAsync

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            var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            var transport = await page.Context.GetBrowser().GetTransportAsync();12            var stdTransport = (Microsoft.Playwright.Transport.StdIOTransport)transport;13            var result = await stdTransport.SendAsync("Browser.getVersion", null);14            Console.WriteLine(result);15            await browser.CloseAsync();16        }17    }18}19{20  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/89.0.4389.0 Safari/537.36",

SendAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            var transport = (Microsoft.Playwright.Transport.StdIOTransport)page.BrowserContext.Transport;14            {15                {16                }17            };18            var response = await transport.SendAsync(request);19            Console.WriteLine(response.Result.ToString());20            await browser.CloseAsync();21        }22    }23}24{25}

SendAsync

Using AI Code Generation

1var stdioTransport = new Microsoft.Playwright.Transport.StdIOTransport();2await stdioTransport.InitializeAsync();3var message = new Microsoft.Playwright.Transport.Message();4message.Method = "Browser.newPage";5message.Id = 1;6message.Params = new Dictionary<string, object>();7message.Params.Add("contextId", "context-1");8message.Params.Add("pageId", "page-1");9var response = await stdioTransport.SendAsync(message);10Console.WriteLine(response);11var webSocketTransport = new Microsoft.Playwright.Transport.WebSocketTransport();12await webSocketTransport.InitializeAsync();13var message = new Microsoft.Playwright.Transport.Message();14message.Method = "Browser.newPage";15message.Id = 1;16message.Params = new Dictionary<string, object>();17message.Params.Add("contextId", "context-1");18message.Params.Add("pageId", "page-1");19var response = await webSocketTransport.SendAsync(message);20Console.WriteLine(response);21var namedPipeTransport = new Microsoft.Playwright.Transport.NamedPipeTransport();22await namedPipeTransport.InitializeAsync();23var message = new Microsoft.Playwright.Transport.Message();24message.Method = "Browser.newPage";25message.Id = 1;26message.Params = new Dictionary<string, object>();27message.Params.Add("contextId", "context-1");28message.Params.Add("pageId", "page-1");29var response = await namedPipeTransport.SendAsync(message);30Console.WriteLine(response);31var tcpTransport = new Microsoft.Playwright.Transport.TcpTransport();32await tcpTransport.InitializeAsync();33var message = new Microsoft.Playwright.Transport.Message();34message.Method = "Browser.newPage";35message.Id = 1;36message.Params = new Dictionary<string, object>();37message.Params.Add("contextId", "context-1");38message.Params.Add("pageId", "page-1");39var response = await tcpTransport.SendAsync(message);40Console.WriteLine(response);

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.
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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.
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