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How to use new method of Microsoft.Playwright.Transport.Connection class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Transport.Connection.new

Connection.cs

Source:Connection.cs

...40namespace Microsoft.Playwright.Transport41{42    internal class Connection : IDisposable43    {44        private readonly ConcurrentDictionary<int, ConnectionCallback> _callbacks = new();45        private readonly Root _rootObject;46        private readonly TaskQueue _queue = new();47        private int _lastId;48        private string _reason = string.Empty;49        public Connection()50        {51            _rootObject = new(null, this, string.Empty);52            DefaultJsonSerializerOptions = JsonExtensions.GetNewDefaultSerializerOptions();53            DefaultJsonSerializerOptions.Converters.Add(new ChannelToGuidConverter(this));54            DefaultJsonSerializerOptions.Converters.Add(new ChannelOwnerToGuidConverter<JSHandle>(this));55            DefaultJsonSerializerOptions.Converters.Add(new ChannelOwnerToGuidConverter<ElementHandle>(this));56            DefaultJsonSerializerOptions.Converters.Add(new ChannelOwnerToGuidConverter<IChannelOwner>(this));57            // Workaround for https://github.com/dotnet/runtime/issues/4652258            DefaultJsonSerializerOptions.Converters.Add(new ChannelOwnerListToGuidListConverter<WritableStream>(this));59        }60        /// <inheritdoc cref="IDisposable.Dispose"/>61        ~Connection() => Dispose(false);62        internal event EventHandler<string> Close;63        public ConcurrentDictionary<string, IChannelOwner> Objects { get; } = new();64        internal AsyncLocal<List<ApiZone>> ApiZone { get; } = new();65        public bool IsClosed { get; private set; }66        internal bool IsRemote { get; set; }67        internal Func<object, Task> OnMessage { get; set; }68        internal JsonSerializerOptions DefaultJsonSerializerOptions { get; }69        public void Dispose()70        {71            Dispose(true);72            GC.SuppressFinalize(this);73        }74        internal Task<JsonElement?> SendMessageToServerAsync(75            string guid,76            string method,77            object args = null)78            => SendMessageToServerAsync<JsonElement?>(guid, method, args);79        internal Task<T> SendMessageToServerAsync<T>(80            string guid,81            string method,82            object args = null) => WrapApiCallAsync(() => InnerSendMessageToServerAsync<T>(guid, method, args));83        private async Task<T> InnerSendMessageToServerAsync<T>(84            string guid,85            string method,86            object args = null)87        {88            if (IsClosed)89            {90                throw new PlaywrightException($"Connection closed ({_reason})");91            }92            int id = Interlocked.Increment(ref _lastId);93            var tcs = new TaskCompletionSource<JsonElement?>(TaskCreationOptions.RunContinuationsAsynchronously);94            var callback = new ConnectionCallback95            {96                TaskCompletionSource = tcs,97            };98            _callbacks.TryAdd(id, callback);99            var sanitizedArgs = new Dictionary<string, object>();100            if (args != null)101            {102                if (args is IDictionary<string, object> dictionary && dictionary.Keys.Any(f => f != null))103                {104                    foreach (var kv in dictionary)105                    {106                        if (kv.Value != null)107                        {108                            sanitizedArgs.Add(kv.Key, kv.Value);109                        }110                    }111                }112                else113                {114                    foreach (PropertyDescriptor propertyDescriptor in TypeDescriptor.GetProperties(args))115                    {116                        object obj = propertyDescriptor.GetValue(args);117                        if (obj != null)118                        {119#pragma warning disable CA1845 // Use span-based 'string.Concat' and 'AsSpan' instead of 'Substring120                            string name = propertyDescriptor.Name.Substring(0, 1).ToLower() + propertyDescriptor.Name.Substring(1);121#pragma warning restore CA2000 // Use span-based 'string.Concat' and 'AsSpan' instead of 'Substring122                            sanitizedArgs.Add(name, obj);123                        }124                    }125                }126            }127            await _queue.EnqueueAsync(() =>128            {129                var message = new MessageRequest130                {131                    Id = id,132                    Guid = guid,133                    Method = method,134                    Params = sanitizedArgs,135                    Metadata = ApiZone.Value[0],136                };137                TraceMessage("pw:channel:command", message);138                return OnMessage(message);139            }).ConfigureAwait(false);140            var result = await tcs.Task.ConfigureAwait(false);141            if (typeof(T) == typeof(JsonElement?))142            {143                return (T)(object)result?.Clone();144            }145            else if (result == null)146            {147                return default;148            }149            else if (typeof(ChannelBase).IsAssignableFrom(typeof(T)) || typeof(ChannelBase[]).IsAssignableFrom(typeof(T)))150            {151                var enumerate = result.Value.EnumerateObject();152                return enumerate.Any()153                    ? enumerate.FirstOrDefault().Value.ToObject<T>(DefaultJsonSerializerOptions)154                    : default;155            }156            else157            {158                return result.Value.ToObject<T>(DefaultJsonSerializerOptions);159            }160        }161        internal IChannelOwner GetObject(string guid)162        {163            Objects.TryGetValue(guid, out var result);164            return result;165        }166        internal void MarkAsRemote() => IsRemote = true;167        internal Task<PlaywrightImpl> InitializePlaywrightAsync()168        {169            return _rootObject.InitializeAsync();170        }171        internal void OnObjectCreated(string guid, IChannelOwner result)172        {173            Objects.TryAdd(guid, result);174        }175        internal void Dispatch(PlaywrightServerMessage message)176        {177            if (message.Id.HasValue)178            {179                TraceMessage("pw:channel:response", message);180                if (_callbacks.TryRemove(message.Id.Value, out var callback))181                {182                    if (message.Error != null)183                    {184                        callback.TaskCompletionSource.TrySetException(CreateException(message.Error.Error));185                    }186                    else187                    {188                        callback.TaskCompletionSource.TrySetResult(message.Result);189                    }190                }191                return;192            }193            TraceMessage("pw:channel:event", message);194            try195            {196                if (message.Method == "__create__")197                {198                    var createObjectInfo = message.Params.Value.ToObject<CreateObjectInfo>(DefaultJsonSerializerOptions);199                    CreateRemoteObject(message.Guid, createObjectInfo.Type, createObjectInfo.Guid, createObjectInfo.Initializer);200                    return;201                }202                if (message.Method == "__dispose__")203                {204                    Objects.TryGetValue(message.Guid, out var disableObject);205                    disableObject?.DisposeOwner();206                    return;207                }208                Objects.TryGetValue(message.Guid, out var obj);209                obj?.Channel?.OnMessage(message.Method, message.Params);210            }211            catch (Exception ex)212            {213                DoClose(ex);214            }215        }216        private void CreateRemoteObject(string parentGuid, ChannelOwnerType type, string guid, JsonElement? initializer)217        {218            IChannelOwner result = null;219            var parent = string.IsNullOrEmpty(parentGuid) ? _rootObject : Objects[parentGuid];220#pragma warning disable CA2000 // Dispose objects before losing scope221            switch (type)222            {223                case ChannelOwnerType.Artifact:224                    result = new Artifact(parent, guid, initializer?.ToObject<ArtifactInitializer>(DefaultJsonSerializerOptions));225                    break;226                case ChannelOwnerType.BindingCall:227                    result = new BindingCall(parent, guid, initializer?.ToObject<BindingCallInitializer>(DefaultJsonSerializerOptions));228                    break;229                case ChannelOwnerType.Playwright:230                    result = new PlaywrightImpl(parent, guid, initializer?.ToObject<PlaywrightInitializer>(DefaultJsonSerializerOptions));231                    break;232                case ChannelOwnerType.Browser:233                    var browserInitializer = initializer?.ToObject<BrowserInitializer>(DefaultJsonSerializerOptions);234                    result = new Browser(parent, guid, browserInitializer);235                    break;236                case ChannelOwnerType.BrowserType:237                    var browserTypeInitializer = initializer?.ToObject<BrowserTypeInitializer>(DefaultJsonSerializerOptions);238                    result = new Core.BrowserType(parent, guid, browserTypeInitializer);239                    break;240                case ChannelOwnerType.BrowserContext:241                    var browserContextInitializer = initializer?.ToObject<BrowserContextInitializer>(DefaultJsonSerializerOptions);242                    result = new BrowserContext(parent, guid, browserContextInitializer);243                    break;244                case ChannelOwnerType.ConsoleMessage:245                    result = new ConsoleMessage(parent, guid, initializer?.ToObject<ConsoleMessageInitializer>(DefaultJsonSerializerOptions));246                    break;247                case ChannelOwnerType.Dialog:248                    result = new Dialog(parent, guid, initializer?.ToObject<DialogInitializer>(DefaultJsonSerializerOptions));249                    break;250                case ChannelOwnerType.ElementHandle:251                    result = new ElementHandle(parent, guid, initializer?.ToObject<ElementHandleInitializer>(DefaultJsonSerializerOptions));252                    break;253                case ChannelOwnerType.Frame:254                    result = new Frame(parent, guid, initializer?.ToObject<FrameInitializer>(DefaultJsonSerializerOptions));255                    break;256                case ChannelOwnerType.JSHandle:257                    result = new JSHandle(parent, guid, initializer?.ToObject<JSHandleInitializer>(DefaultJsonSerializerOptions));258                    break;259                case ChannelOwnerType.JsonPipe:260                    result = new JsonPipe(parent, guid, initializer?.ToObject<JsonPipeInitializer>(DefaultJsonSerializerOptions));261                    break;262                case ChannelOwnerType.LocalUtils:263                    result = new LocalUtils(parent, guid, initializer);264                    break;265                case ChannelOwnerType.Page:266                    result = new Page(parent, guid, initializer?.ToObject<PageInitializer>(DefaultJsonSerializerOptions));267                    break;268                case ChannelOwnerType.Request:269                    result = new Request(parent, guid, initializer?.ToObject<RequestInitializer>(DefaultJsonSerializerOptions));270                    break;271                case ChannelOwnerType.Response:272                    result = new Response(parent, guid, initializer?.ToObject<ResponseInitializer>(DefaultJsonSerializerOptions));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:293                    result = new WritableStream(parent, guid);294                    break;295                case ChannelOwnerType.Tracing:296                    result = new Tracing(parent, guid);297                    break;298                default:299                    TraceMessage("pw:dotnet", "Missing type " + type);300                    break;301            }302#pragma warning restore CA2000303            Objects.TryAdd(guid, result);304            OnObjectCreated(guid, result);305        }306        private void DoClose(Exception ex)307        {308            TraceMessage("pw:dotnet", $"Connection Close: {ex.Message}\n{ex.StackTrace}");309            DoClose(ex.Message);310        }311        internal void DoClose(string reason)312        {313            _reason = string.IsNullOrEmpty(_reason) ? reason : _reason;314            if (!IsClosed)315            {316                foreach (var callback in _callbacks)317                {318                    callback.Value.TaskCompletionSource.TrySetException(new PlaywrightException(reason));319                }320                Dispose();321                IsClosed = true;322            }323        }324        private Exception CreateException(PlaywrightServerError error)325        {326            if (string.IsNullOrEmpty(error.Message))327            {328                return new PlaywrightException(error.Value);329            }330            if (error.Name == "TimeoutError")331            {332                return new TimeoutException(error.Message);333            }334            return new PlaywrightException(error.Message);335        }336        private void Dispose(bool disposing)337        {338            if (!disposing)339            {340                return;341            }342            _queue.Dispose();343            Close.Invoke(this, "Connection disposed");344        }345        [Conditional("DEBUG")]346        internal void TraceMessage(string logLevel, object message)347        {348            string actualLogLevel = Environment.GetEnvironmentVariable("DEBUG");349            if (!string.IsNullOrEmpty(actualLogLevel))350            {351                if (!actualLogLevel.Contains(logLevel))352                {353                    return;354                }355                if (!(message is string))356                {357                    message = JsonSerializer.Serialize(message, DefaultJsonSerializerOptions);358                }359                string line = $"{logLevel}: {message}";360                Trace.WriteLine(line);361                Console.Error.WriteLine(line);362            }363        }364        internal async Task<T> WrapApiCallAsync<T>(Func<Task<T>> action, bool isInternal = false)365        {366            EnsureApiZoneExists();367            if (ApiZone.Value[0] != null)368            {369                return await action().ConfigureAwait(false);370            }371            var st = new StackTrace(true);372            var stack = new List<object>();373            var lastInternalApiName = string.Empty;374            var apiName = string.Empty;375            for (int i = 0; i < st.FrameCount; ++i)376            {377                var sf = st.GetFrame(i);378                string fileName = sf.GetFileName();379                string cSharpNamespace = sf.GetMethod().ReflectedType?.Namespace;380                bool playwrightInternal = cSharpNamespace != null &&381                                          (cSharpNamespace == "Microsoft.Playwright" ||382                                          cSharpNamespace.StartsWith("Microsoft.Playwright.Core", StringComparison.InvariantCultureIgnoreCase) ||383                                          cSharpNamespace.StartsWith("Microsoft.Playwright.Transport", StringComparison.InvariantCultureIgnoreCase) ||384                                          cSharpNamespace.StartsWith("Microsoft.Playwright.Helpers", StringComparison.InvariantCultureIgnoreCase));385                if (string.IsNullOrEmpty(fileName) && !playwrightInternal)386                {387                    continue;388                }389                if (!playwrightInternal)390                {391                    stack.Add(new { file = fileName, line = sf.GetFileLineNumber(), column = sf.GetFileColumnNumber() });392                }393                string methodName = $"{sf?.GetMethod()?.DeclaringType?.Name}.{sf?.GetMethod()?.Name}";394                if (methodName.Contains("WrapApiBoundaryAsync"))395                {396                    break;397                }398                if (methodName.StartsWith("<", StringComparison.InvariantCultureIgnoreCase))399                {400                    continue;401                }402                if (playwrightInternal)403                {404                    lastInternalApiName = methodName;405                }406                else if (!string.IsNullOrEmpty(lastInternalApiName))407                {408                    apiName = lastInternalApiName;409                    lastInternalApiName = string.Empty;410                }411            }412            if (string.IsNullOrEmpty(apiName))413            {414                apiName = lastInternalApiName;415            }416            try417            {418                if (!string.IsNullOrEmpty(apiName))419                {420                    ApiZone.Value[0] = new() { ApiName = apiName, Stack = stack, IsInternal = isInternal };421                }422                return await action().ConfigureAwait(false);423            }424            finally425            {426                ApiZone.Value[0] = null;427            }428        }429        internal async Task WrapApiBoundaryAsync(Func<Task> action)430        {431            EnsureApiZoneExists();432            try433            {434                ApiZone.Value.Insert(0, null);435                await action().ConfigureAwait(false);436            }437            finally438            {439                ApiZone.Value.RemoveAt(0);440            }441        }442        private void EnsureApiZoneExists()443        {444            if (ApiZone.Value == null)445            {446                ApiZone.Value = new() { null };447            }448        }449    }450}...

BrowserType.cs

Source:BrowserType.cs

...38        private readonly BrowserTypeChannel _channel;39        internal BrowserType(IChannelOwner parent, string guid, BrowserTypeInitializer initializer) : base(parent, guid)40        {41            _initializer = initializer;42            _channel = new(guid, parent.Connection, this);43        }44        ChannelBase IChannelOwner.Channel => _channel;45        IChannel<BrowserType> IChannelOwner<BrowserType>.Channel => _channel;46        internal PlaywrightImpl Playwright { get; set; }47        public string ExecutablePath => _initializer.ExecutablePath;48        public string Name => _initializer.Name;49        public async Task<IBrowser> LaunchAsync(BrowserTypeLaunchOptions options = default)50        {51            options ??= new BrowserTypeLaunchOptions();52            Browser browser = (await _channel.LaunchAsync(53                headless: options.Headless,54                channel: options.Channel,55                executablePath: options.ExecutablePath,56                passedArguments: options.Args,57                proxy: options.Proxy,58                downloadsPath: options.DownloadsPath,59                tracesDir: options.TracesDir,60                chromiumSandbox: options.ChromiumSandbox,61                firefoxUserPrefs: options.FirefoxUserPrefs,62                handleSIGINT: options.HandleSIGINT,63                handleSIGTERM: options.HandleSIGTERM,64                handleSIGHUP: options.HandleSIGHUP,65                timeout: options.Timeout,66                env: options.Env,67                devtools: options.Devtools,68                slowMo: options.SlowMo,69                ignoreDefaultArgs: options.IgnoreDefaultArgs,70                ignoreAllDefaultArgs: options.IgnoreAllDefaultArgs).ConfigureAwait(false)).Object;71            browser.LocalUtils = Playwright.Utils;72            return browser;73        }74        public async Task<IBrowserContext> LaunchPersistentContextAsync(string userDataDir, BrowserTypeLaunchPersistentContextOptions options = default)75        {76            options ??= new BrowserTypeLaunchPersistentContextOptions();77            var context = (await _channel.LaunchPersistentContextAsync(78                userDataDir,79                headless: options.Headless,80                channel: options.Channel,81                executablePath: options.ExecutablePath,82                args: options.Args,83                proxy: options.Proxy,84                downloadsPath: options.DownloadsPath,85                tracesDir: options.TracesDir,86                chromiumSandbox: options.ChromiumSandbox,87                handleSIGINT: options.HandleSIGINT,88                handleSIGTERM: options.HandleSIGTERM,89                handleSIGHUP: options.HandleSIGHUP,90                timeout: options.Timeout,91                env: options.Env,92                devtools: options.Devtools,93                slowMo: options.SlowMo,94                acceptDownloads: options.AcceptDownloads,95                ignoreHTTPSErrors: options.IgnoreHTTPSErrors,96                bypassCSP: options.BypassCSP,97                viewportSize: options.ViewportSize,98                screenSize: options.ScreenSize,99                userAgent: options.UserAgent,100                deviceScaleFactor: options.DeviceScaleFactor,101                isMobile: options.IsMobile,102                hasTouch: options.HasTouch,103                javaScriptEnabled: options.JavaScriptEnabled,104                timezoneId: options.TimezoneId,105                geolocation: options.Geolocation,106                locale: options.Locale,107                permissions: options.Permissions,108                extraHTTPHeaders: options.ExtraHTTPHeaders,109                offline: options.Offline,110                httpCredentials: options.HttpCredentials,111                colorScheme: options.ColorScheme,112                reducedMotion: options.ReducedMotion,113                recordHarPath: options.RecordHarPath,114                recordHarOmitContent: options.RecordHarOmitContent,115                recordVideo: Browser.GetVideoArgs(options.RecordVideoDir, options.RecordVideoSize),116                ignoreDefaultArgs: options.IgnoreDefaultArgs,117                ignoreAllDefaultArgs: options.IgnoreAllDefaultArgs,118                baseUrl: options.BaseURL,119                forcedColors: options.ForcedColors).ConfigureAwait(false)).Object;120            // TODO: unite with a single browser context options type which is derived from channels121            context.Options = new()122            {123                RecordVideoDir = options.RecordVideoDir,124                RecordVideoSize = options.RecordVideoSize,125                RecordHarPath = options.RecordHarPath,126                RecordHarOmitContent = options.RecordHarOmitContent,127            };128            ((Core.Tracing)context.Tracing).LocalUtils = Playwright.Utils;129            return context;130        }131        public async Task<IBrowser> ConnectAsync(string wsEndpoint, BrowserTypeConnectOptions options = null)132        {133            options ??= new BrowserTypeConnectOptions();134            var headers = new List<KeyValuePair<string, string>>(options.Headers ?? new Dictionary<string, string>())135            {136                new KeyValuePair<string, string>("x-playwright-browser", Name),137            }.ToDictionary(pair => pair.Key, pair => pair.Value);138            JsonPipe pipe = (await _channel.ConnectAsync(wsEndpoint: wsEndpoint, headers: headers, slowMo: options.SlowMo, timeout: options.Timeout).ConfigureAwait(false)).Object;139            void ClosePipe()140            {141                pipe.CloseAsync().IgnoreException();142            }143#pragma warning disable CA2000 // Dispose objects before losing scope144            var connection = new Connection();145#pragma warning restore CA2000146            connection.MarkAsRemote();147            connection.Close += (_, _) => ClosePipe();148            string closeError = null;149            Browser browser = null;150            void OnPipeClosed()151            {152                // Emulate all pages, contexts and the browser closing upon disconnect.153                foreach (BrowserContext context in browser?.BrowserContextsList.ToArray() ?? Array.Empty<BrowserContext>())154                {155                    foreach (Page page in context.PagesList.ToArray())156                    {157                        page.OnClose();158                    }159                    context.OnClose();160                }161                browser?.DidClose();162                connection.DoClose(closeError != null ? closeError : DriverMessages.BrowserClosedExceptionMessage);163            }164            pipe.Closed += (_, _) => OnPipeClosed();165            connection.OnMessage = async (object message) =>166            {167                try168                {169                    await pipe.SendAsync(message).ConfigureAwait(false);170                }171                catch (Exception e) when (DriverMessages.IsSafeCloseError(e))172                {173                    // swallow exception174                }175                catch176                {177                    OnPipeClosed();178                }179            };180            pipe.Message += (_, message) =>181            {182                try183                {184                    connection.Dispatch(message);185                }186                catch (Exception ex)187                {188                    closeError = ex.ToString();189                    _channel.Connection.TraceMessage("pw:dotnet", $"Dispatching error: {ex.Message}\n{ex.StackTrace}");190                    ClosePipe();191                }192            };193            async Task<IBrowser> CreateBrowserAsync()194            {195                var playwright = await connection.InitializePlaywrightAsync().ConfigureAwait(false);196                playwright.Connection = connection;197                if (playwright.PreLaunchedBrowser == null)198                {199                    ClosePipe();200                    throw new ArgumentException("Malformed endpoint. Did you use launchServer method?");201                }202                browser = playwright.PreLaunchedBrowser;203                browser.ShouldCloseConnectionOnClose = true;204                browser.Disconnected += (_, _) => ClosePipe();205                browser.LocalUtils = Playwright.Utils;206                return playwright.PreLaunchedBrowser;207            }208            var task = CreateBrowserAsync();209            var timeout = options?.Timeout != null ? (int)options.Timeout : 30_000;210            return await task.WithTimeout(timeout, _ => throw new TimeoutException($"BrowserType.ConnectAsync: Timeout {options.Timeout}ms exceeded")).ConfigureAwait(false);211        }212        public async Task<IBrowser> ConnectOverCDPAsync(string endpointURL, BrowserTypeConnectOverCDPOptions options = null)213        {214            if (Name != "chromium")215            {216                throw new ArgumentException("Connecting over CDP is only supported in Chromium.");217            }218            options ??= new BrowserTypeConnectOverCDPOptions();219            JsonElement result = await _channel.ConnectOverCDPAsync(endpointURL, headers: options.Headers, slowMo: options.SlowMo, timeout: options.Timeout).ConfigureAwait(false);220            Browser browser = result.GetProperty("browser").ToObject<Browser>(_channel.Connection.DefaultJsonSerializerOptions);221            if (result.TryGetProperty("defaultContext", out JsonElement defaultContextValue))222            {223                browser.BrowserContextsList.Add(defaultContextValue.ToObject<BrowserContext>(_channel.Connection.DefaultJsonSerializerOptions));224            }225            browser.LocalUtils = Playwright.Utils;226            return browser;227        }228    }229}...

PlaywrightImpl.cs

Source:PlaywrightImpl.cs

...38        public const int DefaultTimeout = 30_000;39        private readonly PlaywrightInitializer _initializer;40        private readonly PlaywrightChannel _channel;41        private readonly Connection _connection;42        private readonly Dictionary<string, BrowserNewContextOptions> _devices = new(StringComparer.InvariantCultureIgnoreCase);43        internal PlaywrightImpl(IChannelOwner parent, string guid, PlaywrightInitializer initializer)44             : base(parent, guid)45        {46            _connection = parent.Connection;47            _initializer = initializer;48            _channel = new(guid, parent.Connection, this);49            foreach (var entry in initializer.DeviceDescriptors)50            {51                _devices[entry.Name] = entry.Descriptor;52            }53            Utils = initializer.Utils;54            _initializer.Chromium.Playwright = this;55            _initializer.Firefox.Playwright = this;56            _initializer.Webkit.Playwright = this;57        }58        ~PlaywrightImpl() => Dispose(false);59        Connection IChannelOwner.Connection => _connection;60        ChannelBase IChannelOwner.Channel => _channel;61        IChannel<PlaywrightImpl> IChannelOwner<PlaywrightImpl>.Channel => _channel;62        public IBrowserType Chromium { get => _initializer.Chromium; set => throw new NotSupportedException(); }63        public IBrowserType Firefox { get => _initializer.Firefox; set => throw new NotSupportedException(); }64        public IBrowserType Webkit { get => _initializer.Webkit; set => throw new NotSupportedException(); }65        public ISelectors Selectors => _initializer.Selectors;66        public IReadOnlyDictionary<string, BrowserNewContextOptions> Devices => _devices;67        internal Connection Connection { get; set; }68        internal Browser PreLaunchedBrowser => _initializer.PreLaunchedBrowser;69        internal LocalUtils Utils { get; set; }70        /// <summary>71        /// Gets a <see cref="IBrowserType"/>.72        /// </summary>73        /// <param name="browserType"><see cref="IBrowserType"/> name. You can get the names from <see cref="global::Microsoft.Playwright.BrowserType"/>.74        /// e.g.: <see cref="global::Microsoft.Playwright.BrowserType.Chromium"/>,75        /// <see cref="global::Microsoft.Playwright.BrowserType.Firefox"/> or <see cref="global::Microsoft.Playwright.BrowserType.Webkit"/>.76        /// </param>77        public IBrowserType this[string browserType]78            => browserType?.ToLower() switch...

Artifact.cs

Source:Artifact.cs

...36        private readonly ArtifactChannel _channel;37        internal Artifact(IChannelOwner parent, string guid, ArtifactInitializer initializer) : base(parent, guid)38        {39            _connection = parent.Connection;40            _channel = new(guid, parent.Connection, this);41            AbsolutePath = initializer.AbsolutePath;42        }43        Connection IChannelOwner.Connection => _connection;44        ChannelBase IChannelOwner.Channel => _channel;45        IChannel<Artifact> IChannelOwner<Artifact>.Channel => _channel;46        internal string AbsolutePath { get; }47        public async Task<string> PathAfterFinishedAsync()48        {49            if (_connection.IsRemote)50            {51                throw new PlaywrightException("Path is not available when connecting remotely. Use SaveAsAsync() to save a local copy.");52            }53            return await _channel.PathAfterFinishedAsync().ConfigureAwait(false);54        }55        public async Task SaveAsAsync(string path)56        {57            if (!_connection.IsRemote)58            {59                await _channel.SaveAsAsync(path).ConfigureAwait(false);60                return;61            }62            System.IO.Directory.CreateDirectory(Path.GetDirectoryName(path));63            var stream = await _channel.SaveAsStreamAsync().ConfigureAwait(false);64            await using (stream.ConfigureAwait(false))65            {66                using (var fileStream = new FileStream(path, FileMode.Create, FileAccess.Write))67                {68                    await stream.StreamImpl.CopyToAsync(fileStream).ConfigureAwait(false);69                }70            }71        }72        public async Task<System.IO.Stream> CreateReadStreamAsync()73        {74            var stream = await _channel.StreamAsync().ConfigureAwait(false);75            return stream.StreamImpl;76        }77        internal Task CancelAsync() => _channel.CancelAsync();78        internal Task<string> FailureAsync() => _channel.FailureAsync();79        internal Task DeleteAsync() => _channel.DeleteAsync();80    }...

ChannelHelpers.cs

Source:ChannelHelpers.cs

...23            if (optional)24            {25                return null;26            }27            throw new ArgumentNullException($"Element {name} was expected to not be optional, yet was not present in the data.");28        }29        internal static T? GetObject<T>(this JsonElement? element, string name, Connection connection)30            where T : ChannelOwnerBase, IChannelOwner<T>31        {32            if (!element.HasValue)33            {34                return null;35            }36            JsonElement retElement;37            if (!element.Value.TryGetProperty(name, out retElement))38            {39                return null;40            }41            var guid = retElement.GetProperty("guid").ToString();42            return connection.GetObject(guid) as T;43        }44        internal static T GetObject<T>(this JsonElement element, string name, Connection connection)45            where T : ChannelOwnerBase, IChannelOwner<T>46        {47            var result = GetObject<T>((JsonElement?)element, name, connection);48            if (result == null)49            {50                throw new ArgumentNullException($"Element {name} expected, but was not found.");51            }52            return result;53        }54        // this method is needed, because a converter for <see cref="Exception"/> is no longer supported55        // since .NET5 and throws an exception of "Serialization and deserialization of 'System.Type' instances are not supported and should be avoided since they can lead to security issues."}56        internal static dynamic ToObject(this Exception exception)57        {58            if (exception == null)59            {60                return new { };61            }62            return new63            {64                error = new65                {66                    message = exception.Message,67                    stack = exception.StackTrace,68                    name = exception.GetType().Name,69                },70            };71        }72    }73}74#nullable disable75#pragma warning restore IDE0018 // Inline variable declaration...

Playwright.cs

Source:Playwright.cs

...40        /// <returns>A <see cref="Task"/> that completes when the playwright driver is ready to be used.</returns>41        public static async Task<IPlaywright> CreateAsync()42        {43#pragma warning disable CA2000 // Dispose objects before losing scope44            var transport = new StdIOTransport();45#pragma warning restore CA200046            var connection = new Connection();47            transport.MessageReceived += (_, message) => connection.Dispatch(JsonSerializer.Deserialize<PlaywrightServerMessage>(message, JsonExtensions.DefaultJsonSerializerOptions));48            transport.LogReceived += (_, log) => Console.Error.WriteLine(log);49            transport.TransportClosed += (_, reason) => connection.DoClose(reason);50            connection.OnMessage = (message) => transport.SendAsync(JsonSerializer.SerializeToUtf8Bytes(message, connection.DefaultJsonSerializerOptions));51            connection.Close += (_, reason) => transport.Close(reason);52            var playwright = await connection.InitializePlaywrightAsync().ConfigureAwait(false);53            playwright.Connection = connection;54            return playwright;55        }56    }57}
...

JsonPipe.cs

Source:JsonPipe.cs

...33        private readonly JsonPipeChannel _channel;34        private readonly JsonPipeInitializer _initializer;35        public JsonPipe(IChannelOwner parent, string guid, JsonPipeInitializer initializer) : base(parent, guid)36        {37            _channel = new(guid, parent.Connection, this);38            _initializer = initializer;39            _channel.Closed += (_, e) => Closed.Invoke(this, e);40            _channel.Message += (_, e) => Message.Invoke(this, e);41        }42        public event EventHandler<PlaywrightServerMessage> Message;43        public event EventHandler<SerializedError> Closed;44        ChannelBase IChannelOwner.Channel => _channel;45        IChannel<JsonPipe> IChannelOwner<JsonPipe>.Channel => _channel;46        public Task CloseAsync() => _channel.CloseAsync();47        public Task SendAsync(object message) => _channel.SendAsync(message);48    }49}...

LocalUtils.cs

Source:LocalUtils.cs

...35    {36        private readonly LocalUtilsChannel _channel;37        public LocalUtils(IChannelOwner parent, string guid, JsonElement? initializer) : base(parent, guid)38        {39            _channel = new(guid, parent.Connection, this);40        }41        ChannelBase IChannelOwner.Channel => _channel;42        IChannel<LocalUtils> IChannelOwner<LocalUtils>.Channel => _channel;43        internal Task ZipAsync(string zipFile, List<NameValueEntry> entries)44            => _channel.ZipAsync(zipFile, entries);45    }46}

new

Using AI Code Generation

1var playwright = await Microsoft.Playwright.Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var page = await browser.NewPageAsync();4await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions { Path = "2.png" });5await browser.CloseAsync();6var playwright = await Microsoft.Playwright.Playwright.CreateAsync();7var browser = await playwright.Chromium.LaunchAsync();8var page = await browser.NewPageAsync();9await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions { Path = "3.png" });10await browser.CloseAsync();11var playwright = await Microsoft.Playwright.Playwright.CreateAsync();12var browser = await playwright.Chromium.LaunchAsync();13var page = await browser.NewPageAsync();14await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions { Path = "4.png" });15await browser.CloseAsync();16var playwright = await Microsoft.Playwright.Playwright.CreateAsync();17var browser = await playwright.Chromium.LaunchAsync();18var page = await browser.NewPageAsync();19await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions { Path = "5.png" });20await browser.CloseAsync();21var playwright = await Microsoft.Playwright.Playwright.CreateAsync();22var browser = await playwright.Chromium.LaunchAsync();23var page = await browser.NewPageAsync();24await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions { Path = "6.png" });25await browser.CloseAsync();26var playwright = await Microsoft.Playwright.Playwright.CreateAsync();27var browser = await playwright.Chromium.LaunchAsync();28var page = await browser.NewPageAsync();

new

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Transport;8{9    {10        static async Task Main(string[] args)11        {12            var browser = await connection.CreateAsync<IBrowser>("BrowserType.launch");13            var page = await connection.CreateAsync<IPage>("Browser.newPage");14            var title = await page.TitleAsync();15            Console.WriteLine(title);16            await browser.CloseAsync();17            connection.Dispose();18        }19    }20}

new

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Transport;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var connection = new Connection();10            await connection.ConnectAsync();11            var browser = await connection.CreateBrowserAsync();12            var page = await browser.NewPageAsync();13            await page.ScreenshotAsync("screenshot.png");14            await browser.CloseAsync();15            await connection.DisposeAsync();16        }17    }18}

new

Using AI Code Generation

1Connection connection = new Connection();2var browser = await connection.NewBrowserAsync();3var page = await browser.NewPageAsync();4var browser = await Connection.NewBrowserAsync();5var page = await browser.NewPageAsync();6var playwright = await Playwright.CreateAsync();7var browser = await playwright.Chromium.LaunchAsync();8var page = await browser.NewPageAsync();9var playwright = await Playwright.CreateAsync();10var browser = await playwright.Chromium.LaunchAsync();11var page = await browser.NewPageAsync();12var playwright = await Playwright.CreateAsync();13var browser = await playwright.Firefox.LaunchAsync();14var page = await browser.NewPageAsync();15var playwright = await Playwright.CreateAsync();16var browser = await playwright.Webkit.LaunchAsync();17var page = await browser.NewPageAsync();18var playwright = await Playwright.CreateAsync();19var browser = await playwright.Webkit.LaunchAsync();20var page = await browser.NewPageAsync();21await page.ScreenshotAsync("bing.png");22var playwright = await Playwright.CreateAsync();23var browser = await playwright.Webkit.LaunchAsync();24var page = await browser.NewPageAsync();25await page.ScreenshotAsync("bing.png");26var playwright = await Playwright.CreateAsync();27var browser = await playwright.Webkit.LaunchAsync();28var page = await browser.NewPageAsync();29await page.ScreenshotAsync("bing.png");30var playwright = await Playwright.CreateAsync();31var browser = await playwright.Webkit.LaunchAsync();32var page = await browser.NewPageAsync();33await page.ScreenshotAsync("bing.png");34var playwright = await Playwright.CreateAsync();

new

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Transport;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var playwright = await Playwright.CreateAsync(connection);10            var browser = await playwright.Chromium.LaunchAsync();11            var context = await browser.NewContextAsync();12            var page = await context.NewPageAsync();13            await page.ScreenshotAsync("screenshot.png");14            await browser.CloseAsync();15        }16    }17}18using Microsoft.Playwright;19using Microsoft.Playwright.Transport;20using System;21using System.Threading.Tasks;22{23    {24        static async Task Main(string[] args)25        {26            var playwright = await Playwright.CreateAsync(connection);27            var browser = await playwright.Firefox.LaunchAsync();28            var context = await browser.NewContextAsync();29            var page = await context.NewPageAsync();30            await page.ScreenshotAsync("screenshot.png");31            await browser.CloseAsync();32        }33    }34}35using Microsoft.Playwright;36using Microsoft.Playwright.Transport;37using System;38using System.Threading.Tasks;39{40    {41        static async Task Main(string[] args)42        {43            var playwright = await Playwright.CreateAsync(connection);44            var browser = await playwright.Webkit.LaunchAsync();45            var context = await browser.NewContextAsync();46            var page = await context.NewPageAsync();47            await page.ScreenshotAsync("screenshot.png");48            await browser.CloseAsync();49        }

new

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Threading.Tasks;5using Microsoft.Playwright.Core;6{7    {8        private readonly IConnectionTransport _transport;9        private readonly Dictionary<string, TaskCompletionSource<IChannelOwner>> _pendingCommands = new Dictionary<string, TaskCompletionSource<IChannelOwner>>();10        private readonly Dictionary<string, IChannelOwner> _objects = new Dictionary<string, IChannelOwner>();11        private readonly Dictionary<string, HashSet<string>> _objectOwners = new Dictionary<string, HashSet<string>>();12        private readonly Dictionary<string, HashSet<string>> _objectChildren = new Dictionary<string, HashSet<string>>();13        private readonly Dictionary<string, HashSet<string>> _objectEvents = new Dictionary<string, HashSet<string>>();14        private readonly Dictionary<string, string> _objectName = new Dictionary<string, string>();15        private readonly Dictionary<string, string> _objectGuid = new Dictionary<string, string>();16        private readonly Dictionary<string, string> _objectType = new Dictionary<string, string>();17        private readonly Dictionary<string, HashSet<string>> _objectEventTypes = new Dictionary<string, HashSet<string>>();18        private readonly Dictionary<string, Dictionary<string, string>> _objectEventParams = new Dictionary<string, Dictionary<string, string>>();19        private readonly Dictionary<string, Dictionary<string, string>> _objectEventTypesParams = new Dictionary<string, Dictionary<string, string>>();20        private readonly Dictionary<string, Dictionary<string, string>> _objectEventTypesParamsTypes = new Dictionary<string, Dictionary<string, string>>();21        private readonly Dictionary<string, Dictionary<string, string>> _objectEventTypesParamsGuid = new Dictionary<string, Dictionary<string, string>>();22        private readonly Dictionary<string, Dictionary<string, string>> _objectEventTypesParamsName = new Dictionary<string, Dictionary<string, string>>();23        private readonly Dictionary<string, HashSet<string>> _objectMethods = new Dictionary<string, HashSet<string>>();24        private readonly Dictionary<string, Dictionary<string, string>> _objectMethodParams = new Dictionary<string, Dictionary<string, string>>();25        private readonly Dictionary<string, Dictionary<string, string>> _objectMethodParamsTypes = new Dictionary<string, Dictionary<string, string>>();26        private readonly Dictionary<string, Dictionary<string, string>> _objectMethodParamsGuid = new Dictionary<string, Dictionary<string, string>>();27        private readonly Dictionary<string, Dictionary<string, string>> _objectMethodParamsName = new Dictionary<string, Dictionary<string, string>>();

new

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Threading.Tasks;4using Microsoft.Playwright;5{6    {7        static async Task Main(string[] args)8        {9            var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions11            {12            });13            var page = await browser.NewPageAsync();

new

Using AI Code Generation

1var playwright = await Microsoft.Playwright.Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var page = await browser.NewPageAsync();4await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions() { Path = "screenshot.png" });5await browser.CloseAsync();6var playwright = await Microsoft.Playwright.Playwright.CreateAsync();7var browser = await playwright.Chromium.LaunchAsync();8var page = await browser.NewPageAsync();9await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions() { Path = "screenshot.png" });10await browser.CloseAsync();11var playwright = await Microsoft.Playwright.Playwright.CreateAsync();12var browser = await playwright.Chromium.LaunchAsync();13var page = await browser.NewPageAsync();14await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions() { Path = "screenshot.png" });15await browser.CloseAsync();16var playwright = await Microsoft.Playwright.Playwright.CreateAsync();17var browser = await playwright.Chromium.LaunchAsync();18var page = await browser.NewPageAsync();19await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions() { Path = "screenshot.png" });20await browser.CloseAsync();21var playwright = await Microsoft.Playwright.Playwright.CreateAsync();22var browser = await playwright.Chromium.LaunchAsync();23var page = await browser.NewPageAsync();24await page.ScreenshotAsync(new Microsoft.Playwright.PageScreenshotOptions() { Path = "screenshot.png" });25await 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.