How to use Read method of Microsoft.Playwright.Core.WritableStream class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.WritableStream.Read

ElementHandleChannel.cs

Source:ElementHandleChannel.cs

...279                ["timeout"] = timeout,280            };281            return Connection.SendMessageToServerAsync<ElementHandleChannel>(Guid, "selectText", args);282        }283        internal async Task<IReadOnlyList<string>> SelectOptionAsync(object values, bool? noWaitAfter = null, bool? force = null, float? timeout = null)284        {285            var args = new Dictionary<string, object>();286            if (values is IElementHandle[])287            {288                args["elements"] = values;289            }290            else291            {292                args["options"] = values;293            }294            args["force"] = force;295            args["timeout"] = timeout;296            args["noWaitAfter"] = noWaitAfter;297            return (await Connection.SendMessageToServerAsync(Guid, "selectOption", args).ConfigureAwait(false))?.GetProperty("values").ToObject<List<string>>().AsReadOnly();298        }299        internal async Task<bool> IsVisibleAsync()300            => (await Connection.SendMessageToServerAsync(Guid, "isVisible", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;301        internal async Task<bool> IsHiddenAsync()302            => (await Connection.SendMessageToServerAsync(Guid, "isHidden", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;303        internal async Task<bool> IsEnabledAsync()304            => (await Connection.SendMessageToServerAsync(Guid, "isEnabled", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;305        internal async Task<bool> IsEditableAsync()306            => (await Connection.SendMessageToServerAsync(Guid, "isEditable", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;307        internal async Task<bool> IsDisabledAsync()308            => (await Connection.SendMessageToServerAsync(Guid, "isDisabled", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;309        internal async Task<string> InputValueAsync(float? timeout)310        {311            var args = new Dictionary<string, object>()...

WritableStream.cs

Source:WritableStream.cs

...49        internal WritableStreamImpl(WritableStream stream)50        {51            _stream = stream;52        }53        public override bool CanRead => throw new NotImplementedException();54        public override bool CanSeek => throw new NotImplementedException();55        public override bool CanWrite => true;56        public override long Length => throw new NotImplementedException();57        public override long Position { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }58        public override void Flush() => throw new NotImplementedException();59        public override int Read(byte[] buffer, int offset, int count) => throw new NotImplementedException();60        public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) =>61            throw new NotImplementedException();62        public override void Close() => _stream.CloseAsync().ConfigureAwait(false);63        public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();64        public override void SetLength(long value) => throw new NotImplementedException();65        public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();66        public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)67        {68            await this._stream.WriteAsync(Convert.ToBase64String(buffer)).ConfigureAwait(false);69        }70    }71}...

Read

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5{6    {7        static async Task Main(string[] args)8        {9            await using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync();11            var page = await browser.NewPageAsync();12            var stream = await page.EvaluateHandleAsync<WritableStream>("() => document.createDocumentFragment().appendChild(document.createElement('script')).srcObject = new MediaSource();");13            var bytes = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x61, 0x76, 0x63, 0x31 };14            await stream.ReadAsync(bytes);15        }16    }17}18using System;19using System.Threading.Tasks;20using Microsoft.Playwright;21using Microsoft.Playwright.Core;22{23    {24        static async Task Main(string[] args)25        {26            await using var playwright = await Playwright.CreateAsync();27            await using var browser = await playwright.Chromium.LaunchAsync();28            var page = await browser.NewPageAsync();29            var stream = await page.EvaluateHandleAsync<ReadableStream>("() => new ReadableStream()");30            var bytes = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x61, 0x76, 0x63, 0x31 };31            await stream.WriteAsync(bytes);32        }33    }34}35using System;36using System.Threading.Tasks;37using Microsoft.Playwright;38using Microsoft.Playwright.Core;39{40    {41        static async Task Main(string[] args)42        {43            await using var playwright = await Playwright.CreateAsync();44            await using var browser = await playwright.Chromium.LaunchAsync();45            var page = await browser.NewPageAsync();

Read

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            var stream = await page.EvaluateHandleAsync("() => document.querySelector('title').innerHTML");15            var readableStream = stream.AsReadableStream();16            var readableStreamReader = readableStream.GetReader();17            var result = await readableStreamReader.ReadAsync();18            Console.WriteLine(result.Value);19            await browser.CloseAsync();20        }21    }22}

Read

Using AI Code Generation

1using System;2using System.Collections.Generic;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5{6    {7        static async System.Threading.Tasks.Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });11            var page = await browser.NewPageAsync();12            await page.ClickAsync("text=Sign in");13            await page.ClickAsync("text=Create an account");14            await page.FillAsync("input[name=\"firstName\"]", "FirstName");15            await page.FillAsync("input[name=\"lastName\"]", "LastName");16            await page.FillAsync("input[name=\"Username\"]", "UserName");17            await page.FillAsync("input[name=\"Passwd\"]", "Password");18            await page.FillAsync("input[name=\"ConfirmPasswd\"]", "Password");19            await page.ClickAsync("text=Next");20            await page.ClickAsync("text=Next");21            await page.ClickAsync("text=I agree");22            await page.ClickAsync("text=Next");

Read

Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3using System;4using System.IO;5using System.Threading;6{7    {8        static async Task Main(string[] args)9        {10            using var playwright = await Playwright.CreateAsync();11            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await page.SetContentAsync(@"15            var stream = new WritableStream({16                write(chunk) {17                document.body.innerHTML += chunk;18                }19            });20            var writer = stream.getWriter();21            writer.write('Hello, ');22            writer.write('world!');23            writer.close();24            ");25            var stream = await page.EvaluateHandleAsync("stream");26            var reader = await stream.GetPropertyAsync("getReader");27            var read = await reader.CallAsync("call", stream);28            await read.GetPropertyAsync("value");29            await Task.Delay(1000);30            await browser.CloseAsync();31        }32    }33}34await page.ClickAsync("text=Download");35var downloadPath = Path.Combine(Directory.GetCurrentDirectory(), "Downloads");36var fileName = "Sample.pdf";37var filePath = Path.Combine(downloadPath, fileName);38Assert.True(File.Exists(filePath));39Assert.True() Failure

Read

Using AI Code Generation

1var data = await stream.ReadAsync();2var dataString = Encoding.UTF8.GetString(data);3Console.WriteLine(dataString);4var data = await stream.ReadAsync();5var dataString = Encoding.UTF8.GetString(data);6Console.WriteLine(dataString);7var data = await stream.ReadAsync();8var dataString = Encoding.UTF8.GetString(data);9Console.WriteLine(dataString);10var data = await stream.ReadAsync();11var dataString = Encoding.UTF8.GetString(data);12Console.WriteLine(dataString);13var data = await stream.ReadAsync();14var dataString = Encoding.UTF8.GetString(data);15Console.WriteLine(dataString);16var data = await stream.ReadAsync();17var dataString = Encoding.UTF8.GetString(data);18Console.WriteLine(dataString);19var data = await stream.ReadAsync();20var dataString = Encoding.UTF8.GetString(data);21Console.WriteLine(dataString);22var data = await stream.ReadAsync();23var dataString = Encoding.UTF8.GetString(data);24Console.WriteLine(dataString);

Read

Using AI Code Generation

1var stream = await page.CreateWritableStreamAsync();2var stream = await page.CreateWritableStreamAsync();3var stream = await page.CreateWritableStreamAsync();4var stream = await page.CreateWritableStreamAsync();5var stream = await page.CreateWritableStreamAsync();6var stream = await page.CreateWritableStreamAsync();

Read

Using AI Code Generation

1await using var stream = await page.Context.NewPageAsync();2await page.ClickAsync("text=\"Sign in\"");3await page.ClickAsync("text=\"Create account\"");4await page.FillAsync("input[name=\"firstName\"]", "John");5await page.FillAsync("input[name=\"lastName\"]", "Doe");6await page.FillAsync("input[name=\"Username\"]", "johndoe");7await page.FillAsync("input[name=\"Passwd\"]", "12345");8await page.FillAsync("input[name=\"ConfirmPasswd\"]", "12345");9await page.ClickAsync("text=\"Next\"");10await page.ClickAsync("text=\"I agree\"");

Read

Using AI Code Generation

1var readableStream = stream.Body;2var writableStream = new WritableStream();3await readableStream.ReadAsync(writableStream);4var text = await writableStream.ReadTextAsync();5Console.WriteLine(text);6var readableStream = stream.Body;7var writableStream = new WritableStream();8await readableStream.ReadAsync(writableStream);9var text = await writableStream.ReadTextAsync();10Console.WriteLine(text);11var readableStream = stream.Body;12var writableStream = new WritableStream();13await readableStream.ReadAsync(writableStream);14var text = await writableStream.ReadTextAsync();15Console.WriteLine(text);16var readableStream = stream.Body;17var writableStream = new WritableStream();18await readableStream.ReadAsync(writableStream);19var text = await writableStream.ReadTextAsync();20Console.WriteLine(text);

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.

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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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