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

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

WritableStream.cs

Source:WritableStream.cs

...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}...

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            await using var browser = await playwright.Chromium.LaunchAsync();9            var page = await browser.NewPageAsync();10            var request = page.WaitForRequestAsync("**/*");11            await page.FillAsync("input[name=q]", "test");12            await page.PressAsync("input[name=q]", "Enter");13            await request;14            await page.ClickAsync("text=Images");15            var response = page.WaitForResponseAsync("**/*");16            var element = await page.QuerySelectorAsync("input[name=q]");17            await element.FocusAsync();18            await element.TypeAsync("Playwright");19            await element.PressAsync("Enter");20            await response;21            var image = await page.QuerySelectorAsync("img[src]");22            var imgSrc = await image.GetAttributeAsync("src");23            var request1 = page.WaitForRequestAsync("**/*");24            await page.GotoAsync(imgSrc);25            await request1;26            await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded);27            var response1 = page.WaitForResponseAsync("**/*");28            await page.ClickAsync("text=Download image");29            await response1;30            var download = await page.WaitForEventAsync(PageEvent.Download);31            var downloadPath = @"C:\Users\Downloads\";32            var downloadStream = await download.CreateReadStreamAsync();33            var writeStream = System.IO.File.Create(downloadPath + download.SuggestedFilename);34            await downloadStream.CopyToAsync(writeStream);35            await downloadStream.FlushAsync();36            await writeStream.FlushAsync();37            await writeStream.DisposeAsync();38            await downloadStream.DisposeAsync();39        }40    }41}

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            await using var browser = await playwright.Chromium.LaunchAsync();9            var page = await browser.NewPageAsync();10            page.Keyboard.Type("Hello world!");11            await page.Keyboard.FlushAsync();12        }13    }14}15using Microsoft.Playwright;16using System.Threading.Tasks;17{18    {19        static async Task Main(string[] args)20        {21            using var playwright = await Playwright.CreateAsync();22            await using var browser = await playwright.Chromium.LaunchAsync();23            var page = await browser.NewPageAsync();24            page.Keyboard.Type("Hello world!");25            await page.Keyboard.FlushAsync();26        }27    }28}29using Microsoft.Playwright;30using System.Threading.Tasks;31{32    {33        static async Task Main(string[] args)34        {35            using var playwright = await Playwright.CreateAsync();36            await using var browser = await playwright.Chromium.LaunchAsync();37            var page = await browser.NewPageAsync();38            page.Keyboard.Type("Hello world!");39            await page.Keyboard.FlushAsync();40        }41    }42}43using Microsoft.Playwright;44using System.Threading.Tasks;45{46    {47        static async Task Main(string[] args)48        {49            using var playwright = await Playwright.CreateAsync();50            await using var browser = await playwright.Chromium.LaunchAsync();51            var page = await browser.NewPageAsync();52            page.Keyboard.Type("Hello world!");53            await page.Keyboard.FlushAsync();54        }55    }56}57using Microsoft.Playwright;

Flush

Using AI Code Generation

1using System;2using System.IO;3using System.Threading.Tasks;4using Microsoft.Playwright;5{6    {7        static async Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });11            var context = await browser.NewContextAsync();12            var page = await context.NewPageAsync();13            var newPage = await context.NewPageAsync();14            var pages = await context.PagesAsync();15            foreach (var page in pages)16            {17                var request = await page.WaitForRequestAsync("**/*.png");18                var response = request.Response;19                var stream = await response.BodyAsync();20                var bytes = await stream.ReadAsync();21                await File.WriteAllBytesAsync("test.png", bytes);22                await stream.FlushAsync();23            }24            await browser.CloseAsync();25        }26    }27}28In the above code, the method used is ReadAsync() which reads the response body and returns the result as a byte array. This method is used to read a small file. If the file is large, then the method ReadAsync() will take a lot of time to complete the operation. So, to improve the performance, we can use the method ReadAsync() which reads the response body

Flush

Using AI Code Generation

1using System;2using Microsoft.Playwright;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            var handle = await page.QuerySelectorAsync("input[title='Search']");13            var element = (IElementHandle)handle;14            await element.FocusAsync();15            await element.TypeAsync("Hello World");16            await element.PressAsync("Enter");17            await element.ScreenshotAsync("search.png");18            var stream = await element.ScreenshotStreamAsync();19            await stream.FlushAsync();20            await context.CloseAsync();21            await browser.CloseAsync();22        }23    }24}25using System;26using Microsoft.Playwright;27using System.Threading.Tasks;28{29    {30        static async Task Main(string[] args)31        {32            await using var playwright = await Playwright.CreateAsync();33            await using var browser = await playwright.Chromium.LaunchAsync();34            var context = await browser.NewContextAsync();35            var page = await context.NewPageAsync();36            await page.WaitForEventAsync(PageEvent.Load);37            await context.CloseAsync();38            await browser.CloseAsync();39        }40    }41}42using System;43using Microsoft.Playwright;44using System.Threading.Tasks;45{46    {47        static async Task Main(string[] args)48        {49            await using var playwright = await Playwright.CreateAsync();50            await using var browser = await playwright.Chromium.LaunchAsync();51            var context = await browser.NewContextAsync();52            var page = await context.NewPageAsync();53            await page.WaitForEventAsync(PageEvent.Load);54            await context.CloseAsync();55            await browser.CloseAsync();56        }57    }58}

Flush

Using AI Code Generation

1using System;2using System.IO;3using Microsoft.Playwright;4using System.Threading.Tasks;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(new BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var stream = File.OpenWrite("output.pdf");15            await page.PdfAsync(new PagePdfOptions16            {17            });18            await stream.FlushAsync();19            await stream.DisposeAsync();20        }21    }22}23using System;24using System.IO;25using Microsoft.Playwright;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            await using var playwright = await Playwright.CreateAsync();32            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions33            {34            });35            var page = await browser.NewPageAsync();36            var stream = File.OpenWrite("output.pdf");37            await page.PdfAsync(new PagePdfOptions38            {39            });40            await stream.FlushAsync();41            await stream.DisposeAsync();42        }43    }44}45using System;46using System.IO;47using Microsoft.Playwright;48using System.Threading.Tasks;49{50    {51        static async Task Main(string[] args)52        {53            await using var playwright = await Playwright.CreateAsync();54            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions55            {56            });57            var page = await browser.NewPageAsync();58            var stream = File.OpenWrite("output.pdf");59            await page.PdfAsync(new PagePdfOptions60            {61            });

Flush

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;7{8    {9        static async Task Main(string[] args)10        {11            using var playwright = await Playwright.CreateAsync();12            var browser = await playwright.Firefox.LaunchAsync(headless: false);13            var page = await browser.NewPageAsync();14            var request = await page.WaitForRequestAsync("**/*");15            var response = request.Response;16            var body = response.Body;17            var stream = body.Readable;18            var reader = stream.GetReader();19            var writer = stream.GetWriter();20            var page1 = await browser.NewPageAsync();21            var request1 = await page1.WaitForRequestAsync("**/*");22            var response1 = request1.Response;23            var body1 = response1.Body;24            var stream1 = body1.Readable;25            var reader1 = stream1.GetReader();26            var writer1 = stream1.GetWriter();27            var page2 = await browser.NewPageAsync();28            var request2 = await page2.WaitForRequestAsync("**/*");29            var response2 = request2.Response;30            var body2 = response2.Body;31            var stream2 = body2.Readable;32            var reader2 = stream2.GetReader();33            var writer2 = stream2.GetWriter();34            await writer.WriteAsync(Encoding.UTF8.GetBytes("Hello World!"));35            await writer.FlushAsync();36            await writer1.WriteAsync(Encoding.UTF8.GetBytes("Hello World!"));37            await writer1.FlushAsync();38            await writer2.WriteAsync(Encoding.UTF8.GetBytes("Hello World!"));39            await writer2.FlushAsync();40            await writer.CloseAsync();41            await writer1.CloseAsync();42            await writer2.CloseAsync();43        }44    }45}

Flush

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    static async Task Main(string[] args)6    {7        using var playwright = await Playwright.CreateAsync();8        await using var browser = await playwright.Chromium.LaunchAsync(new()9        {10        });11        var context = await browser.NewContextAsync();12        var page = await context.NewPageAsync();13        await page.PressAsync("input[title='Search']", "ArrowDown");14        await page.PressAsync("input[title='Search']", "Enter");15        await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded);16        await page.ScreenshotAsync(new()17        {18        });19    }20}21using System;22using System.Threading.Tasks;23using Microsoft.Playwright;24{25    static async Task Main(string[] args)26    {27        using var playwright = await Playwright.CreateAsync();28        await using var browser = await playwright.Chromium.LaunchAsync(new()29        {30        });31        var context = await browser.NewContextAsync();32        var page = await context.NewPageAsync();33        await page.PressAsync("input[title='Search']", "ArrowDown");34        await page.PressAsync("input[title='Search']", "Enter");35        await page.WaitForLoadStateAsync(LoadState.DOMContentLoaded);36        await page.ScreenshotAsync(new()37        {38        });39    }40}

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.
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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.
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.
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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.