How to use AddInitScriptAsync method of Microsoft.Playwright.Core.BrowserContext class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.BrowserContext.AddInitScriptAsync

Page.cs

Source:Page.cs

...591                File.WriteAllBytes(options.Path, result);592            }593            return result;594        }595        public Task AddInitScriptAsync(string script, string scriptPath)596            => _channel.AddInitScriptAsync(ScriptsHelper.EvaluationScript(script, scriptPath));597        public Task RouteAsync(string url, Action<IRoute> handler, PageRouteOptions options = null)598            => RouteAsync(new Regex(Context.CombineUrlWithBase(url).GlobToRegex()), null, handler, options);599        public Task RouteAsync(Regex url, Action<IRoute> handler, PageRouteOptions options = null)600             => RouteAsync(url, null, handler, options);601        public Task RouteAsync(Func<string, bool> url, Action<IRoute> handler, PageRouteOptions options = null)602            => RouteAsync(null, url, handler, options);603        public Task UnrouteAsync(string urlString, Action<IRoute> handler)604            => UnrouteAsync(new Regex(Context.CombineUrlWithBase(urlString).GlobToRegex()), null, handler);605        public Task UnrouteAsync(Regex urlString, Action<IRoute> handler)606            => UnrouteAsync(urlString, null, handler);607        public Task UnrouteAsync(Func<string, bool> urlFunc, Action<IRoute> handler)608            => UnrouteAsync(null, urlFunc, handler);609        public Task WaitForLoadStateAsync(LoadState? state = default, PageWaitForLoadStateOptions options = default)610            => MainFrame.WaitForLoadStateAsync(state, new() { Timeout = options?.Timeout });...

BrowserContext.cs

Source:BrowserContext.cs

...121        internal List<Worker> ServiceWorkersList { get; } = new();122        internal bool IsChromium => _initializer.IsChromium;123        internal BrowserNewContextOptions Options { get; set; }124        public Task AddCookiesAsync(IEnumerable<Cookie> cookies) => Channel.AddCookiesAsync(cookies);125        public Task AddInitScriptAsync(string script = null, string scriptPath = null)126        {127            if (string.IsNullOrEmpty(script))128            {129                script = ScriptsHelper.EvaluationScript(script, scriptPath);130            }131            return Channel.AddInitScriptAsync(script);132        }133        public Task ClearCookiesAsync() => Channel.ClearCookiesAsync();134        public Task ClearPermissionsAsync() => Channel.ClearPermissionsAsync();135        public async Task CloseAsync()136        {137            try138            {139                if (Options.RecordHarPath != null)140                {141                    Artifact artifact = await Channel.HarExportAsync().ConfigureAwait(false);142                    await artifact.SaveAsAsync(Options.RecordHarPath).ConfigureAwait(false);143                    await artifact.DeleteAsync().ConfigureAwait(false);144                }145                await Channel.CloseAsync().ConfigureAwait(false);...

BrowserContextChannel.cs

Source:BrowserContextChannel.cs

...126                {127                    ["name"] = name,128                    ["needsHandle"] = needsHandle,129                });130        internal Task AddInitScriptAsync(string script)131            => Connection.SendMessageToServerAsync<PageChannel>(132                Guid,133                "addInitScript",134                new Dictionary<string, object>135                {136                    ["source"] = script,137                });138        internal Task SetNetworkInterceptionEnabledAsync(bool enabled)139            => Connection.SendMessageToServerAsync<PageChannel>(140                Guid,141                "setNetworkInterceptionEnabled",142                new Dictionary<string, object>143                {144                    ["enabled"] = enabled,...

AddInitScriptAsync

Using AI Code Generation

1using Microsoft.Playwright;2await using var playwright = await Playwright.CreateAsync();3await using var browser = await playwright.Chromium.LaunchAsync();4await using var context = await browser.NewContextAsync();5await context.AddInitScriptAsync("window.foo = 'bar'");6await using var page = await context.NewPageAsync();7using Microsoft.Playwright;8await using var playwright = await Playwright.CreateAsync();9await using var browser = await playwright.Chromium.LaunchAsync();10await using var context = await browser.NewContextAsync();11await context.AddInitScriptAsync(new {foo = "bar"});12await using var page = await context.NewPageAsync();13using Microsoft.Playwright;14await using var playwright = await Playwright.CreateAsync();15await using var browser = await playwright.Chromium.LaunchAsync();16await using var context = await browser.NewContextAsync();17await context.AddInitScriptAsync(new {foo = "bar"}, new {foo = "baz"});18await using var page = await context.NewPageAsync();19using Microsoft.Playwright;20await using var playwright = await Playwright.CreateAsync();21await using var browser = await playwright.Chromium.LaunchAsync();22await using var context = await browser.NewContextAsync();23await context.AddInitScriptAsync(new {foo = "bar"}, new {foo = "baz", bar = "foo"});24await using var page = await context.NewPageAsync();

AddInitScriptAsync

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            var browser = await playwright.Chromium.LaunchAsync();9            var page = await browser.NewPageAsync();10            await page.ScreenshotAsync("google.png");11            await browser.CloseAsync();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            var browser = await playwright.Chromium.LaunchAsync();23            var context = await browser.NewContextAsync();24            await context.AddInitScriptAsync("window.foo = 'bar'");25            var page = await context.NewPageAsync();26            await page.ScreenshotAsync("google.png");27            await browser.CloseAsync();28        }29    }30}

AddInitScriptAsync

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            var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync(headless: false);11            var context = await browser.NewContextAsync();12            await context.AddInitScriptAsync(@"() => {13                window.foo = 'bar';14            }");15            var page = await context.NewPageAsync();16            var result = await page.EvaluateAsync<string>("() => window.foo");17            Console.WriteLine(result);18            await browser.CloseAsync();19        }20    }21}22using System;23using System.Threading.Tasks;24using Microsoft.Playwright;25using Microsoft.Playwright.Core;26{27    {28        static async Task Main(string[] args)29        {30            var playwright = await Playwright.CreateAsync();31            var browser = await playwright.Chromium.LaunchAsync(headless: false);32            var context = await browser.NewContextAsync();33            await context.AddInitScriptAsync(@"() => {34                window.foo = 'bar';35            }");36            var page = await context.NewPageAsync();37            var result = await page.EvaluateAsync<string>("() => window.foo");38            Console.WriteLine(result);39            await browser.CloseAsync();40        }41    }42}43using System;44using System.Threading.Tasks;45using Microsoft.Playwright;46using Microsoft.Playwright.Core;47{48    {49        static async Task Main(string[] args)50        {51            var playwright = await Playwright.CreateAsync();52            var browser = await playwright.Chromium.LaunchAsync(headless: false

AddInitScriptAsync

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            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });9            var context = await browser.NewContextAsync(new BrowserContextOptions10            {11            });12            await context.AddInitScriptAsync(@"() => { localStorage.setItem('name', 'value'); }");13            var page = await context.NewPageAsync();14            await page.CloseAsync();15            await context.CloseAsync();16            await browser.CloseAsync();17        }18    }19}20using Microsoft.Playwright;21using System.Threading.Tasks;22{23    {24        static async Task Main(string[] args)25        {26            using var playwright = await Playwright.CreateAsync();27            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });28            var context = await browser.NewContextAsync(new BrowserContextOptions29            {30                AddInitScript = @"() => { localStorage.setItem('name', 'value'); }"31            });32            var page = await context.NewPageAsync();33            await page.CloseAsync();34            await context.CloseAsync();35            await browser.CloseAsync();36        }37    }38}39using Microsoft.Playwright;40using System.Threading.Tasks;41{42    {43        static async Task Main(string[] args)44        {45            using var playwright = await Playwright.CreateAsync();46            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions { Headless = false });47            var context = await browser.NewContextAsync(new BrowserContextOptions48            {49                AddInitScript = new System.Func<string>(() => { return @"() => { localStorage.setItem('name', 'value'); }"; })50            });51            var page = await context.NewPageAsync();52            await page.GotoAsync("https

AddInitScriptAsync

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            var playwright = await Playwright.CreateAsync();8            var browser = await playwright.Chromium.LaunchAsync(headless: false);9            var context = await browser.NewContextAsync();10            await context.AddInitScriptAsync(@"() => {11                const newProto = navigator.__proto__;12                delete newProto.webdriver;13                navigator.__proto__ = newProto;14            }");15            var page = await context.NewPageAsync();16            await page.WaitForSelectorAsync("text=Your user-agent is");17            await page.CloseAsync();18            await browser.CloseAsync();19        }20    }21}22using Microsoft.Playwright.Core;23using System.Threading.Tasks;24{25    {26        static async Task Main(string[] args)27        {28            var playwright = await Playwright.CreateAsync();29            var browser = await playwright.Chromium.LaunchAsync(headless: false);30            var context = await browser.NewContextAsync();31            await context.AddInitScriptAsync(@"() => {32                Object.defineProperty(navigator, 'webdriver', {33                get: () => false34                })35            }");36            var page = await context.NewPageAsync();37            await page.WaitForSelectorAsync("text=Your user-agent is");38            await page.CloseAsync();39            await browser.CloseAsync();40        }41    }42}

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.