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How to use WriteAsync method of Microsoft.Playwright.Core.WritableStreamImpl class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.WritableStreamImpl.WriteAsync

WritableStream.cs

Source:WritableStream.cs

...38        ChannelBase IChannelOwner.Channel => Channel;39        IChannel<WritableStream> IChannelOwner<WritableStream>.Channel => Channel;40        public WritableStreamChannel Channel { get; }41        public WritableStreamImpl WritableStreamImpl => new(this);42        public Task WriteAsync(string binary) => Channel.WriteAsync(binary);43        public ValueTask DisposeAsync() => new ValueTask(CloseAsync());44        public Task CloseAsync() => Channel.CloseAsync();45    }46    internal class WritableStreamImpl : System.IO.Stream47    {48        private readonly WritableStream _stream;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}...

WriteAsync

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.Firefox.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            var stream = await page.EvaluateHandleAsync<WritableStreamImpl>("() => new WritableStream()");14            var writer = (await stream.GetWriterAsync()).Object;15            await writer.WriteAsync("Hello, World!");16            await writer.CloseAsync();17        }18    }19}

WriteAsync

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();10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            var stream = await response.BodyAsync();13            var buffer = new byte[1000000];14            var read = await stream.ReadAsync(buffer, 0, buffer.Length);15            Console.WriteLine("Read {0} bytes from stream", read);16            await stream.WriteAsync(buffer, 0, read);17            await stream.CloseAsync();18            await browser.CloseAsync();19        }20    }21}

WriteAsync

Using AI Code Generation

1var browser = await Playwright.CreateAsync();2var context = await browser.NewContextAsync();3var page = await context.NewPageAsync();4await page.ClickAsync("text=Sign in");5await page.FillAsync("input[name=\"identifier\"]", "testuser");6await page.ClickAsync("text=Next");7await page.FillAsync("input[name=\"password\"]", "testpassword");8await page.ClickAsync("text=Next");9await page.ClickAsync("text=Sign in");10await page.ClickAsync("text=Google apps");11await page.ClickAsync("text=Drive");12await page.ClickAsync("text=New");13await page.ClickAsync("text=File upload");14var handle = await page.QuerySelectorAsync("input[type=\"file\"]");15await handle.SetInputFilesAsync("C:\\Users\\testuser\\Downloads\\testfile.txt");16await page.ClickAsync("text=Upload");

WriteAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5using Microsoft.Playwright.Transport.Channels;6using Microsoft.Playwright.Transport.Protocol;7using System.Text;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();14            var page = await browser.NewPageAsync();15            var element = await page.QuerySelectorAsync("input[name='q']");16            await element.TypeAsync("Hello World!");17            var stream = await page.QuerySelectorAsync("input[name='q']");18            var streamImpl = (WritableStreamImpl)stream;19            await streamImpl.WriteAsync(Encoding.UTF8.GetBytes("Hello World!"));20        }21    }22}23using System;24using System.Threading.Tasks;25using Microsoft.Playwright;26using Microsoft.Playwright.Core;27using Microsoft.Playwright.Transport.Channels;28using Microsoft.Playwright.Transport.Protocol;29using System.Text;30{31    {32        static async Task Main(string[] args)33        {34            using var playwright = await Playwright.CreateAsync();35            await using var browser = await playwright.Chromium.LaunchAsync();36            var page = await browser.NewPageAsync();37            var element = await page.QuerySelectorAsync("input[name='q']");38            await element.TypeAsync("Hello World!");39            var stream = await page.QuerySelectorAsync("input[name='q']");40            var streamImpl = (WritableStreamImpl)stream;41            await streamImpl.WriteAsync("Hello World!");42        }

WriteAsync

Using AI Code Generation

1var writableStream = await stream.CreateWriteStreamAsync();2await writableStream.WriteAsync("Hello World!");3await writableStream.CloseAsync();4var writableStream = await stream.CreateWriteStreamAsync();5await writableStream.WriteAsync("Hello World!");6await writableStream.CloseAsync();7var writableStream = await stream.CreateWriteStreamAsync();8await writableStream.WriteAsync("Hello World!");9await writableStream.CloseAsync();10var writableStream = await stream.CreateWriteStreamAsync();11await writableStream.WriteAsync("Hello World!");12await writableStream.CloseAsync();13var writableStream = await stream.CreateWriteStreamAsync();14await writableStream.WriteAsync("Hello World!");15await writableStream.CloseAsync();16var writableStream = await stream.CreateWriteStreamAsync();17await writableStream.WriteAsync("Hello World!");18await writableStream.CloseAsync();19var writableStream = await stream.CreateWriteStreamAsync();20await writableStream.WriteAsync("Hello World!");21await writableStream.CloseAsync();22var writableStream = await stream.CreateWriteStreamAsync();23await writableStream.WriteAsync("Hello World!");24await writableStream.CloseAsync();

WriteAsync

Using AI Code Generation

1await page.EvaluateAsync("() => { window.stream = new WritableStream({ write(chunk) { window.chunks.push(chunk) } }) }");2await page.EvaluateAsync("() => new Response('response', { headers: { 'content-type': 'text/plain' } }).body.pipeTo(window.stream)");3await page.EvaluateAsync("() => window.chunks = []");4await page.EvaluateAsync("() => window.stream.write('hello')");5await page.EvaluateAsync("() => window.stream.write(' ')");6await page.EvaluateAsync("() => window.stream.write('world')");7await page.EvaluateAsync("() => window.stream.close()");8await page.EvaluateAsync("() => { window.stream = new ReadableStream({ start(controller) { controller.enqueue('hello'); controller.enqueue(' '); controller.enqueue('world'); controller.close() } }) }");9await page.EvaluateAsync("() => window.reader = window.stream.getReader()");10await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks = [result.value, result.done])");11await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks.push(result.value, result.done))");12await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks.push(result.value, result.done))");13await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks.push(result.value, result.done))");14await page.EvaluateAsync("() => { window.stream = new ReadableStream({ start(controller) { controller.enqueue('hello'); controller.enqueue(' '); controller.enqueue('world'); controller.close() } }) }");15await page.EvaluateAsync("() => window.reader = window.stream.getReader()");16await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks = [result.value, result.done])");17await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks.push(result.value, result.done))");18await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks.push(result.value, result.done))");19await page.EvaluateAsync("() => window.reader.read().then(result => window.chunks.push(result.value, result.done))");20await page.EvaluateAsync("() => { window.stream = new ReadableStream({ start(controller) { controller

WriteAsync

Using AI Code Generation

1await page.SetContentAsync(@"2");3await page.ClickAsync("text=Run");4var handle = await page.QuerySelectorAsync("text=Run");5var stream = await handle.GetAttributeAsync("href");6var file = await page.Context.GrantPermissionsAsync(new[] { "download" });7await page.ClickAsync("text=Run");8await page.WaitForDownloadAsync();9await page.CloseAsync();10await browser.CloseAsync();11await page.SetContentAsync(@"12");13await page.ClickAsync("text=Run");14var handle = await page.QuerySelectorAsync("text=Run");15var stream = await handle.GetAttributeAsync("href");16var file = await page.Context.GrantPermissionsAsync(new[] { "download" });17await page.ClickAsync("text=Run");18await page.WaitForDownloadAsync();19await page.CloseAsync();20await browser.CloseAsync();21await page.SetContentAsync(@"22");23await page.ClickAsync("text=Run");24var handle = await page.QuerySelectorAsync("text=Run");25var stream = await handle.GetAttributeAsync("href");26var file = await page.Context.GrantPermissionsAsync(new[] { "download" });27await page.ClickAsync("text=Run");28await page.WaitForDownloadAsync();29await page.CloseAsync();30await browser.CloseAsync();31await page.SetContentAsync(@"32");33await page.ClickAsync("text=Run");34var handle = await page.QuerySelectorAsync("text=Run");35var stream = await handle.GetAttributeAsync("href");36var file = await page.Context.GrantPermissionsAsync(new[] { "download" });37await page.ClickAsync("text=Run");38await page.WaitForDownloadAsync();39await page.CloseAsync();40await browser.CloseAsync();

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.