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

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

PageNetworkRequestTest.cs

Source:PageNetworkRequestTest.cs

...165            {166                ctx.Response.Headers["content-type"] = "text/event-stream";167                ctx.Response.Headers["connection"] = "keep-alive";168                ctx.Response.Headers["cache-control"] = "no-cache";169                await ctx.Response.Body.FlushAsync();170                await ctx.Response.WriteAsync($"data: {sseMessage}\r\r");171                await ctx.Response.Body.FlushAsync();172            });173            await Page.GotoAsync(Server.EmptyPage);174            var requests = new List<IRequest>();175            Page.Request += (_, e) => requests.Add(e);176            Assert.AreEqual(sseMessage, await Page.EvaluateAsync<string>(@"() => {177                const eventSource = new EventSource('/sse');178                return new Promise(resolve => {179                    eventSource.onmessage = e => resolve(e.data);180                });181            }"));182            Assert.AreEqual("eventsource", requests[0].ResourceType);183        }184        [PlaywrightTest("page-network-request.spec.ts", "should return navigation bit")]185        public async Task ShouldReturnNavigationBit()...

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}...

Stream.cs

Source:Stream.cs

...54        public override bool CanSeek => false;55        public override bool CanWrite => throw new NotImplementedException();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 async Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)61        {62            var result = await _stream.ReadAsync(count).ConfigureAwait(false);63            result.CopyTo(buffer, offset);64            return result.Length;65        }66        public override void Close() => _stream.CloseAsync().ConfigureAwait(false);67        public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();68        public override void SetLength(long value) => throw new NotImplementedException();69        public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();70    }71}...

Startup.cs

Source:Startup.cs

...31            var telemetryClient = new TelemetryClient(new TelemetryConfiguration(Environment.GetEnvironmentVariable("APPINSIGHTS_INSTRUMENTATIONKEY")));32            var errorStream = new ApplicationInsightsStream(10240, telemetryClient);33            Console.SetError(TextWriter.Synchronized(new StreamWriter(errorStream)34            {35                AutoFlush = true,36            }));37#pragma warning restore CA2000 // Dispose objects before losing scope38            var playwrightBrowsersPath = Environment.GetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH")!;39            // Create the Playwright browsers directory manually so we get a clear exception message if we don't have permission40            Directory.CreateDirectory(playwrightBrowsersPath);41            // Install the browser required by Playwright 42            Microsoft.Playwright.Program.Main(new[] { "install", "chromium" });43            var connectionString = Environment.GetEnvironmentVariable("AzureAppConfigurationConnectionString");44            if (string.IsNullOrEmpty(connectionString))45            {46                throw new InvalidOperationException("AzureAppConfigurationConnectionString app setting is required");47            }48            var configuration = new ConfigurationBuilder()49                .AddCatalogueScannerAzureAppConfiguration(connectionString, out var refresherSupplier)...

Flush

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(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            var stream = await page.PdfStreamAsync();15            await stream.FlushAsync();16            await browser.CloseAsync();17        }18    }19}20using Microsoft.Playwright;21using System;22using System.Threading.Tasks;23{24    {25        static async Task Main(string[] args)26        {27            using var playwright = await Playwright.CreateAsync();28            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions29            {30            });31            var context = await browser.NewContextAsync();32            var page = await context.NewPageAsync();33            var stream = await page.PdfStreamAsync();34            stream.Dispose();35            await browser.CloseAsync();36        }37    }38}39using Microsoft.Playwright;40using System;41using System.Threading.Tasks;42{43    {44        static async Task Main(string[] args)45        {46            using var playwright = await Playwright.CreateAsync();47            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions48            {49            });50            var context = await browser.NewContextAsync();51            var page = await context.NewPageAsync();52            var stream = await page.PdfStreamAsync();53            stream.Dispose();54            await browser.CloseAsync();55        }56    }57}58using Microsoft.Playwright;59using System;60using System.Threading.Tasks;61{62    {63        static async Task Main(string[] args)64        {65            using var playwright = await Playwright.CreateAsync();66            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions67            {

Flush

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(new BrowserTypeLaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            var stream = await page.ScreenshotStreamAsync();15            stream.Flush();16            await browser.CloseAsync();17        }18    }19}20using Microsoft.Playwright;21using System;22using System.Threading.Tasks;23{24    {25        static async Task Main(string[] args)26        {27            using var playwright = await Playwright.CreateAsync();28            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions29            {30            });31            var context = await browser.NewContextAsync();32            var page = await context.NewPageAsync();33            var stream = await page.ScreenshotStreamAsync();34            await stream.FlushAsync();35            await browser.CloseAsync();36        }37    }38}39using Microsoft.Playwright;40using System;41using System.Threading.Tasks;42{43    {44        static async Task Main(string[] args)45        {46            using var playwright = await Playwright.CreateAsync();47            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions48            {49            });50            var context = await browser.NewContextAsync();51            var page = await context.NewPageAsync();52            var stream = await page.ScreenshotStreamAsync();53            var buffer = new byte[1024];54            stream.Read(buffer, 0, buffer.Length);55            await browser.CloseAsync();56        }57    }58}

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 context = await browser.NewContextAsync();10            var page = await context.NewPageAsync();11            await page.ScreenshotAsync("google.png", new ScreenshotOptions { FullPage = true });12            var stream = await page.ScreenshotStreamAsync(new ScreenshotOptions { FullPage = true });13            await stream.FlushAsync();14        }15    }16}17using Microsoft.Playwright;18using System.Threading.Tasks;19{20    {21        static async Task Main(string[] args)22        {23            using var playwright = await Playwright.CreateAsync();24            await using var browser = await playwright.Chromium.LaunchAsync();25            var context = await browser.NewContextAsync();26            var page = await context.NewPageAsync();27            await page.ScreenshotAsync("google.png", new ScreenshotOptions { FullPage = true

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System.IO;3await using var playwright = await Playwright.CreateAsync();4await using var browser = await playwright.Chromium.LaunchAsync();5await using var context = await browser.NewContextAsync();6await using var page = await context.NewPageAsync();7await using var stream = await page.CaptureScreenshotAsync();8using (var fileStream = File.Create("screenshot.png"))9{10    await stream.FlushAsync(fileStream);11}12using Microsoft.Playwright;13using System.IO;14await using var playwright = await Playwright.CreateAsync();15await using var browser = await playwright.Chromium.LaunchAsync();16await using var context = await browser.NewContextAsync();17await using var page = await context.NewPageAsync();18await using var stream = await page.CaptureScreenshotAsync();19using (var fileStream = File.Create("screenshot.png"))20{21    await stream.FlushAsync(fileStream);22}23using Microsoft.Playwright;24using System.IO;25await using var playwright = await Playwright.CreateAsync();26await using var browser = await playwright.Chromium.LaunchAsync();27await using var context = await browser.NewContextAsync();28await using var page = await context.NewPageAsync();29await using var stream = await page.CaptureScreenshotAsync();30using (var fileStream = File.Create("screenshot.png"))31{32    await stream.FlushAsync(fileStream);33}34using Microsoft.Playwright;35using System.IO;36await using var playwright = await Playwright.CreateAsync();37await using var browser = await playwright.Chromium.LaunchAsync();38await using var context = await browser.NewContextAsync();39await using var page = await context.NewPageAsync();40await using var stream = await page.CaptureScreenshotAsync();41using (var fileStream = File.Create("screenshot.png"))42{43    await stream.FlushAsync(fileStream);44}45using Microsoft.Playwright;46using System.IO;47await using var playwright = await Playwright.CreateAsync();48await using var browser = await playwright.Chromium.LaunchAsync();49await using var context = await browser.NewContextAsync();

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.IO;4using System.Threading.Tasks;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 BrowserTypeLaunchOptions { Headless = false });11            var context = await browser.NewContextAsync();12            var page = await context.NewPageAsync();13            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "google.png" });14            var stream = await page.ScreenshotStreamAsync();15            await stream.FlushAsync();16            await page.CloseAsync();17            await context.CloseAsync();18            await browser.CloseAsync();19        }20    }21}

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.IO;4using System.Threading.Tasks;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 BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();14            var screenshotPath = Path.Combine(Directory.GetCurrentDirectory(), "google.png");15            var stream = File.Create(screenshotPath);16            await page.ScreenshotAsync(new PageScreenshotOptions17            {18            });19            await stream.FlushAsync();20            await browser.CloseAsync();21        }22    }23}24using Microsoft.Playwright;25using System;26using System.IO;27using System.Threading.Tasks;28{29    {30        static async Task Main(string[] args)31        {32            using var playwright = await Playwright.CreateAsync();33            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions34            {35            });36            var page = await browser.NewPageAsync();37            var screenshotPath = Path.Combine(Directory.GetCurrentDirectory(), "google.png");38            var stream = File.Create(screenshotPath);39            await page.ScreenshotAsync(new PageScreenshotOptions40            {41            });42            await stream.FlushAsync();43            await browser.CloseAsync();44        }45    }46}47using Microsoft.Playwright;48using System;49using System.IO;50using System.Threading.Tasks;51{52    {53        static async Task Main(string[] args)54        {55            using var playwright = await Playwright.CreateAsync();56            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions57            {58            });59            var page = await browser.NewPageAsync();

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            await using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync();11            var page = await browser.NewPageAsync();12            var elementHandle = await page.QuerySelectorAsync("input[name=\"q\"]");13            await elementHandle.TypeAsync("Hello World");14            await elementHandle.PressAsync("Enter");15            await page.WaitForLoadStateAsync(LoadState.NetworkIdle);16            var path = "C:\\Users\\username\\Desktop\\test.pdf";17            var stream = File.OpenWrite(path);18            await page.PdfAsync(stream: stream);

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.IO;4{5    {6        static async System.Threading.Tasks.Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });10            var page = await browser.NewPageAsync();11            await page.ScreenshotAsync(new PageScreenshotOptions { Path = "1.png" });12            var stream = await page.ScreenshotStreamAsync(new PageScreenshotOptions { Type = ScreenshotType.Jpeg });13            using (var reader = new StreamReader(stream))14            {15                var content = reader.ReadToEnd();16                Console.WriteLine(content);17            }18        }19    }20}

Flush

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.IO;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 = await response.BodyAsync();15            var readStream = stream.ReadableStream();16            var writeStream = File.OpenWrite("google.html");17            await readStream.CopyToAsync(writeStream);18            await writeStream.FlushAsync();19            Console.WriteLine("Done");20        }21    }22}23Recommended Posts: Playwright | How to use FlushAsync() method of Stream class?24Playwright | How to use WriteAsync() method of Stream class?25Playwright | How to use ReadAsync() method of Stream class?26Playwright | How to use DisposeAsync() method of Stream class?27Playwright | How to use Flush() method of Stream class?28Playwright | How to use Write() method of Stream class?29Playwright | How to use Read() method of Stream class?30Playwright | How to use Dispose() method of Stream class?31Playwright | How to use SetTimeoutAsync() method of BrowserContext class?32Playwright | How to use SetDefaultNavigationTimeoutAsync() method of BrowserContext class?33Playwright | How to use SetDefaultTimeoutAsync() method of BrowserContext class?34Playwright | How to use SetGeolocationAsync() method of BrowserContext class?35Playwright | How to use SetViewportSizeAsync() method of BrowserContext class?36Playwright | How to use SetViewportSizeAsync() method of BrowserContext class?37Playwright | How to use SetExtraHTTPHeadersAsync() method of BrowserContext class?38Playwright | How to use SetHTTPCredentialsAsync() method of BrowserContext class?39Playwright | How to use SetOfflineAsync() method of BrowserContext class?40Playwright | How to use SetExtraHTTPHeadersAsync() method of BrowserContext class?41Playwright | How to use SetHTTPCredentialsAsync() method of BrowserContext class?42Playwright | How to use SetOfflineAsync() method of BrowserContext class?

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.