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How to use Worker class of Microsoft.Playwright.Core package
Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.Worker
Connection.cs
Source:Connection.cs 
...273 break;274 case ChannelOwnerType.Route:275 result = new Route(parent, guid, initializer?.ToObject<RouteInitializer>(DefaultJsonSerializerOptions));276 break;277 case ChannelOwnerType.Worker:278 result = new Worker(parent, guid, initializer?.ToObject<WorkerInitializer>(DefaultJsonSerializerOptions));279 break;280 case ChannelOwnerType.WebSocket:281 result = new WebSocket(parent, guid, initializer?.ToObject<WebSocketInitializer>(DefaultJsonSerializerOptions));282 break;283 case ChannelOwnerType.Selectors:284 result = new Selectors(parent, guid);285 break;286 case ChannelOwnerType.SocksSupport:287 result = new SocksSupport(parent, guid);288 break;289 case ChannelOwnerType.Stream:290 result = new Stream(parent, guid);291 break;292 case ChannelOwnerType.WritableStream:...
BrowserContextChannel.cs
Source:BrowserContextChannel.cs
...38 }39 internal event EventHandler Close;40 internal event EventHandler<BrowserContextPageEventArgs> Page;41 internal event EventHandler<BrowserContextPageEventArgs> BackgroundPage;42 internal event EventHandler<WorkerChannelEventArgs> ServiceWorker;43 internal event EventHandler<BindingCallEventArgs> BindingCall;44 internal event EventHandler<RouteEventArgs> Route;45 internal event EventHandler<BrowserContextChannelRequestEventArgs> Request;46 internal event EventHandler<BrowserContextChannelRequestEventArgs> RequestFinished;47 internal event EventHandler<BrowserContextChannelRequestEventArgs> RequestFailed;48 internal event EventHandler<BrowserContextChannelResponseEventArgs> Response;49 internal override void OnMessage(string method, JsonElement? serverParams)50 {51 switch (method)52 {53 case "close":54 Close?.Invoke(this, EventArgs.Empty);55 break;56 case "bindingCall":57 BindingCall?.Invoke(58 this,59 new() { BindingCall = serverParams?.GetProperty("binding").ToObject<BindingCallChannel>(Connection.DefaultJsonSerializerOptions).Object });60 break;61 case "route":62 var route = serverParams?.GetProperty("route").ToObject<RouteChannel>(Connection.DefaultJsonSerializerOptions).Object;63 var request = serverParams?.GetProperty("request").ToObject<RequestChannel>(Connection.DefaultJsonSerializerOptions).Object;64 Route?.Invoke(65 this,66 new() { Route = route, Request = request });67 break;68 case "page":69 Page?.Invoke(70 this,71 new() { PageChannel = serverParams?.GetProperty("page").ToObject<PageChannel>(Connection.DefaultJsonSerializerOptions) });72 break;73 case "crBackgroundPage":74 BackgroundPage?.Invoke(75 this,76 new() { PageChannel = serverParams?.GetProperty("page").ToObject<PageChannel>(Connection.DefaultJsonSerializerOptions) });77 break;78 case "crServiceWorker":79 ServiceWorker?.Invoke(80 this,81 new() { WorkerChannel = serverParams?.GetProperty("worker").ToObject<WorkerChannel>(Connection.DefaultJsonSerializerOptions) });82 break;83 case "request":84 Request?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));85 break;86 case "requestFinished":87 RequestFinished?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));88 break;89 case "requestFailed":90 RequestFailed?.Invoke(this, serverParams?.ToObject<BrowserContextChannelRequestEventArgs>(Connection.DefaultJsonSerializerOptions));91 break;92 case "response":93 Response?.Invoke(this, serverParams?.ToObject<BrowserContextChannelResponseEventArgs>(Connection.DefaultJsonSerializerOptions));94 break;95 }...
PageEvent.cs
Source:PageEvent.cs
...65 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.FrameDetached"/>.66 /// </summary>67 public static PlaywrightEvent<IFrame> FrameDetached { get; } = new() { Name = "FrameDetached" };68 /// <summary>69 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.Worker"/>.70 /// </summary>71 public static PlaywrightEvent<IWorker> Worker { get; } = new() { Name = "Worker" };72 /// <summary>73 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.Dialog"/>.74 /// </summary>75 public static PlaywrightEvent<IDialog> Dialog { get; } = new() { Name = "Dialog" };76 /// <summary>77 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.FileChooser"/>.78 /// </summary>79 public static PlaywrightEvent<IFileChooser> FileChooser { get; } = new() { Name = "FileChooser" };80 /// <summary>81 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.PageError"/>.82 /// </summary>83 public static PlaywrightEvent<string> PageError { get; } = new() { Name = "PageError" };84 /// <summary>85 /// <see cref="PlaywrightEvent{T}"/> representing a <see cref="IPage.Load"/>....
Worker.cs
Source:Worker.cs
...28using Microsoft.Playwright.Transport.Channels;29using Microsoft.Playwright.Transport.Protocol;30namespace Microsoft.Playwright.Core31{32 internal class Worker : ChannelOwnerBase, IChannelOwner<Worker>, IWorker33 {34 private readonly WorkerChannel _channel;35 private readonly WorkerInitializer _initializer;36 public Worker(IChannelOwner parent, string guid, WorkerInitializer initializer) : base(parent, guid)37 {38 _channel = new(guid, parent.Connection, this);39 _initializer = initializer;40 _channel.Close += (_, _) =>41 {42 if (Page != null)43 {44 Page.WorkersList.Remove(this);45 }46 if (BrowserContext != null)47 {48 BrowserContext.ServiceWorkersList.Remove(this);49 }50 Close?.Invoke(this, this);51 };52 }53 public event EventHandler<IWorker> Close;54 public string Url => _initializer.Url;55 ChannelBase IChannelOwner.Channel => _channel;56 IChannel<Worker> IChannelOwner<Worker>.Channel => _channel;57 internal Page Page { get; set; }58 internal BrowserContext BrowserContext { get; set; }59 public async Task<T> EvaluateAsync<T>(string expression, object arg = null)60 => ScriptsHelper.ParseEvaluateResult<T>(await _channel.EvaluateExpressionAsync(61 expression,62 null,63 ScriptsHelper.SerializedArgument(arg)).ConfigureAwait(false));64 public async Task<IJSHandle> EvaluateHandleAsync(string expression, object arg = null)65 => await _channel.EvaluateExpressionHandleAsync(66 expression,67 null,68 ScriptsHelper.SerializedArgument(arg))69 .ConfigureAwait(false);70 public async Task<IWorker> WaitForCloseAsync(Func<Task> action = default, float? timeout = default)71 {72 using var waiter = new Waiter(this, "worker.WaitForCloseAsync");73 var waiterResult = waiter.GetWaitForEventTask<IWorker>(this, nameof(Close), null);74 var result = waiterResult.Task.WithTimeout(Convert.ToInt32(timeout ?? 0));75 if (action != null)76 {77 await WrapApiBoundaryAsync(() => Task.WhenAll(result, action())).ConfigureAwait(false);78 }79 else80 {81 await result.ConfigureAwait(false);82 }83 return this;84 }85 }86}...
WorkerChannelImpl.cs
Source:WorkerChannelImpl.cs
...35using Microsoft.Playwright.Helpers;36#nullable enable37namespace Microsoft.Playwright.Transport.Channels38{39 internal class WorkerChannelImpl : Channel<Worker>40 {41 public WorkerChannelImpl(string guid, Connection connection, Worker owner) : base(guid, connection, owner)42 {43 }44 // invoked via close45 internal event EventHandler? Close;46 internal virtual async Task<JsonElement> EvaluateExpressionAsync(string expression,47 bool? isFunction,48 object arg)49 => (await Connection.SendMessageToServerAsync<JsonElement>(50 Guid,51 "evaluateExpression",52 new53 {54 expression = expression,55 isFunction = isFunction,56 arg = arg,57 }58 )59 .ConfigureAwait(false)).GetProperty("value");60 internal virtual async Task<JSHandle> EvaluateExpressionHandleAsync(string expression,61 bool? isFunction,62 object arg)63 => (await Connection.SendMessageToServerAsync<JsonElement>(64 Guid,65 "evaluateExpressionHandle",66 new67 {68 expression = expression,69 isFunction = isFunction,70 arg = arg,71 }72 )73 .ConfigureAwait(false)).GetObject<JSHandle>("handle", Connection);74 protected void OnClose() => Close?.Invoke(this, new());75 }76 internal partial class WorkerChannel : WorkerChannelImpl77 {78 public WorkerChannel(string guid, Connection connection, Worker owner) : base(guid, connection, owner)79 {80 }81 }82}83#nullable disable...
Startup.cs
Source:Startup.cs
1using Akka.Actor;2using Akka.Routing;3using Microsoft.AspNetCore.Builder;4using Microsoft.AspNetCore.Hosting;5using Microsoft.Extensions.Configuration;6using Microsoft.Extensions.DependencyInjection;7using Microsoft.Extensions.Hosting;8using Microsoft.OpenApi.Models;9using PrerenderPlaywright.Actors;10using PrerenderPlaywright.Clients;11using System.Linq;12namespace PrerenderPlaywright13{14 public class Startup15 {16 private ActorSystem system;17 public Startup(IConfiguration configuration)18 { 19 Configuration = configuration;20 }21 public IConfiguration Configuration { get; }22 public void ConfigureServices(IServiceCollection services)23 {24 system = ActorSystem.Create("MySystem");25 services.AddSingleton<IProcessClient>(s => new ProcessClient());26 var activityObserverRef = system.ActorOf(BrowserObserverActor.Props());27 var workerNames = Enumerable.Range(1, 5).Select(n => $"worker-{n}");28 var workers = workerNames.Select(name => system.ActorOf(PrerenderActor.Props(activityObserverRef), name));29 var group = new RoundRobinGroup(workers.Select(w => w.Path.ToStringWithAddress()));30 var groupRef = system.ActorOf(Props.Empty.WithRouter(group));31 services.AddSingleton<IRenderingClient>(s => new RenderingClient(groupRef));32 services.AddSingleton<IBrowserClient>(s => new BrowserClient(activityObserverRef)); 33 services.AddControllers();34 services.AddSwaggerGen(c => c.SwaggerDoc("v1", new OpenApiInfo { Title = "PrerenderDotNet", Version = "v1" }));35 }36 public void Configure(IApplicationBuilder app, IHostApplicationLifetime applicationLifetime, IWebHostEnvironment env)37 {38 applicationLifetime.ApplicationStopping.Register(OnShutdown);39 if (env.IsDevelopment())40 {41 app.UseDeveloperExceptionPage(); 42 }43 app.UseSwagger();44 app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "PrerenderDotNet v1"));45 app.UseRouting();46 app.UseAuthorization();47 app.UseEndpoints(endpoints => endpoints.MapControllers());48 }49 private void OnShutdown()50 {51 system?.Dispose();52 }53 }54}...
WorkerChannel.cs
Source:WorkerChannel.cs
...25using System.Text.Json;26using Microsoft.Playwright.Core;27namespace Microsoft.Playwright.Transport.Channels28{29 internal partial class WorkerChannel30 {31 internal override void OnMessage(string method, JsonElement? serverParams)32 {33 switch (method)34 {35 case "close":36 OnClose();37 break;38 }39 }40 }41}...
Function1.cs
Source:Function1.cs
...8using Microsoft.Extensions.Logging;9using Newtonsoft.Json;10using Microsoft.Playwright;11using System.Net;12using Microsoft.Azure.Functions.Worker.Http;13namespace PlayWrightLinuxNet614{15 public static class Function116 {17 [FunctionName("Function1")]18 public static async Task<IActionResult> Run(19 [HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,20 ILogger log)21 {22 using var playwright = await Playwright.CreateAsync();23 await using var browser = await playwright.Chromium.LaunchAsync();24 var page = await browser.NewPageAsync();25 await page.GotoAsync("https://playwright.dev/dotnet");26 var screenshot = await page.ScreenshotAsync();...
Worker
Using AI Code Generation
1using Microsoft.Playwright.Core;2using Microsoft.Playwright;3using Microsoft.Playwright.Transport;4using Microsoft.Playwright.Transport.Channels;5using Microsoft.Playwright.Transport.Protocol;6using Microsoft.Playwright.Transport.Protocol.Channels;7using Microsoft.Playwright.Transport.Protocol.Models;8using Microsoft.Playwright.Transport.Protocol.Serializers;9using Microsoft.Playwright.Transport.Protocol.Streams;10using Microsoft.Playwright.Transport.Protocol.Streams.Channels;11using Microsoft.Playwright.Transport.Protocol.Streams.Models;12using Microsoft.Playwright.Transport.Protocol.Streams.Serializers;13using Microsoft.Playwright.Core;14using Microsoft.Playwright;15using Microsoft.Playwright.Transport;16using Microsoft.Playwright.Transport.Channels;17using Microsoft.Playwright.Transport.Protocol;18using Microsoft.Playwright.Transport.Protocol.Channels;19using Microsoft.Playwright.Transport.Protocol.Models;20using Microsoft.Playwright.Transport.Protocol.Serializers;21using Microsoft.Playwright.Transport.Protocol.Streams;
Worker
Using AI Code Generation
1using Microsoft.Playwright;2await using var playwright = await Playwright.CreateAsync();3var browser = await playwright.Chromium.LaunchAsync();4var page = await browser.NewPageAsync();5await page.ScreenshotAsync(path: "example.png");6await browser.CloseAsync();7using Microsoft.Playwright;8await using var playwright = await Playwright.CreateAsync();9var browser = await playwright.Firefox.LaunchAsync();10var page = await browser.NewPageAsync();11await page.ScreenshotAsync(path: "example.png");12await browser.CloseAsync();13using Microsoft.Playwright;14await using var playwright = await Playwright.CreateAsync();15var browser = await playwright.Webkit.LaunchAsync();16var page = await browser.NewPageAsync();17await page.ScreenshotAsync(path: "example.png");18await browser.CloseAsync();19using Microsoft.Playwright;20await using var playwright = await Playwright.CreateAsync();21var browser = await playwright.Chromium.LaunchAsync();22var context = await browser.NewContextAsync();23var page = await context.NewPageAsync();24await page.ScreenshotAsync(path: "example.png");25await browser.CloseAsync();26using Microsoft.Playwright;27await using var playwright = await Playwright.CreateAsync();28var browser = await playwright.Chromium.LaunchAsync();29var context = await browser.NewContextAsync();30var page = await context.NewPageAsync();31await page.ScreenshotAsync(path: "example.png");32await browser.CloseAsync();33using Microsoft.Playwright;34await using var playwright = await Playwright.CreateAsync();35var browser = await playwright.Chromium.LaunchAsync();36var context = await browser.NewContextAsync();37var page = await context.NewPageAsync();
Worker
Using AI Code Generation
1using Microsoft.Playwright.Core;2using Microsoft.Playwright;3using Microsoft.Playwright.Transport;4using Microsoft.Playwright.Transport.Protocol;5using Microsoft.Playwright.Transport.Channels;6using Microsoft.Playwright.Transport.Channels.Protocol;7using Microsoft.Playwright.Transport.Channels.Base;8using Microsoft.Playwright.Transport.Channels.Connections;9using Microsoft.Playwright.Transport.Channels.Messages;10using Microsoft.Playwright.Transport.Channels.Playwright;11using Microsoft.Playwright.Transport.Channels.Playwright.Protocol;12using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages;13using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Base;14using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Channel;15using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Connection;16using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Playwright;17using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Playwright.Protocol;18using Microsoft.Playwright.Transport.Channels.Playwright.Protocol.Messages.Playwright.Protocol.Messages;
Worker
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.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync(new PageScreenshotOptions { Path = "example.png" });14 }15 }16}
Worker
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 using var playwright = await Playwright.CreateAsync();9 using var browser = await playwright.Chromium.LaunchAsync();10 using var context = await browser.NewContextAsync();11 var page = await context.NewPageAsync();12 await page.ScreenshotAsync("bing.png");13 Console.WriteLine("Done");14 }15 }16}17using Microsoft.Playwright;18using System;19using System.Threading.Tasks;20{21 {22 static async Task Main(string[] args)23 {24 using var playwright = await Playwright.CreateAsync();25 using var browser = await playwright.Chromium.LaunchAsync();26 using var context = await browser.NewContextAsync();27 var page = await context.NewPageAsync();28 await page.ScreenshotAsync("bing.png");29 Console.WriteLine("Done");30 }31 }32}
Worker
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.Chromium.LaunchAsync();10 var page = await browser.NewPageAsync();11 await page.ScreenshotAsync("screenshot.png");12 }13 }14}15using Microsoft.Playwright;16using System;17using System.Threading.Tasks;18{19 {20 static async Task Main(string[] args)21 {22 using var playwright = await Playwright.CreateAsync();23 await using var browser = await playwright.Chromium.LaunchAsync();24 var page = await browser.NewPageAsync();25 await page.ScreenshotAsync("screenshot.png");26 }27 }28}
Worker
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 using var browser = await playwright.Chromium.LaunchAsync();10 var page = await browser.NewPageAsync();11 await page.ScreenshotAsync("screenshot.png");12 Console.WriteLine("Hello World!");13 }14 }15}16using Microsoft.Playwright;17using System;18using System.Threading.Tasks;19{20 {21 static async Task Main(string[] args)22 {23 using var playwright = await Playwright.CreateAsync();24 using var browser = await playwright.Chromium.LaunchAsync();25 var page = await browser.NewPageAsync();
Worker
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 BrowserTypeLaunchOptions10 {11 });12 var page = await browser.NewPageAsync();13 await page.ScreenshotAsync(new PageScreenshotOptions14 {15 });16 await browser.CloseAsync();17 }18 }19}
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.
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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.
- 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.
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