How to use Close method of PuppeteerSharp.CDPSession class

Best Puppeteer-sharp code snippet using PuppeteerSharp.CDPSession.Close

Connection.cs

Source:Connection.cs

...22            Url = url;23            Delay = delay;24            Transport = transport;25            Transport.MessageReceived += Transport_MessageReceived;26            Transport.Closed += Transport_Closed;27            _callbacks = new ConcurrentDictionary<int, MessageTask>();28            _sessions = new ConcurrentDictionary<string, CDPSession>();29            _asyncSessions = new AsyncDictionaryHelper<string, CDPSession>(_sessions, "Session {0} not found");30        }31        #region Private Members32        private int _lastId;33        private readonly ConcurrentDictionary<int, MessageTask> _callbacks;34        private readonly ConcurrentDictionary<string, CDPSession> _sessions;35        private readonly AsyncDictionaryHelper<string, CDPSession> _asyncSessions;36        #endregion37        #region Properties38        /// <summary>39        /// Gets the WebSocket URL.40        /// </summary>41        /// <value>The URL.</value>42        public string Url { get; }43        /// <summary>44        /// Gets the sleep time when a message is received.45        /// </summary>46        /// <value>The delay.</value>47        public int Delay { get; }48        /// <summary>49        /// Gets the Connection transport.50        /// </summary>51        /// <value>Connection transport.</value>52        public IConnectionTransport Transport { get; }53        /// <summary>54        /// Occurs when the connection is closed.55        /// </summary>56        public event EventHandler Disconnected;57        /// <summary>58        /// Occurs when a message from chromium is received.59        /// </summary>60        public event EventHandler<MessageEventArgs> MessageReceived;61        /// <summary>62        /// Gets or sets a value indicating whether this <see cref="Connection"/> is closed.63        /// </summary>64        /// <value><c>true</c> if is closed; otherwise, <c>false</c>.</value>65        public bool IsClosed { get; internal set; }66        /// <summary>67        /// Connection close reason.68        /// </summary>69        public string CloseReason { get; private set; }70        #endregion71        #region Public Methods72        internal int GetMessageID() => Interlocked.Increment(ref _lastId);73        internal Task RawSendASync(int id, string method, object args, string sessionId = null)74        {75            return Transport.SendAsync(JsonConvert.SerializeObject(76                new ConnectionRequest77                {78                    Id = id,79                    Method = method,80                    Params = args,81                    SessionId = sessionId82                },83                JsonHelper.DefaultJsonSerializerSettings));84        }85        internal async Task<JObject> SendAsync(string method, object args = null, bool waitForCallback = true)86        {87            if (IsClosed)88            {89                throw new TargetClosedException($"Protocol error({method}): Target closed.", CloseReason);90            }91            var id = GetMessageID();92            MessageTask callback = null;93            if (waitForCallback)94            {95                callback = new MessageTask96                {97                    TaskWrapper = new TaskCompletionSource<JObject>(),98                    Method = method99                };100                _callbacks[id] = callback;101            }102            await RawSendASync(id, method, args).ConfigureAwait(false);103            return waitForCallback ? await callback.TaskWrapper.Task.ConfigureAwait(false) : null;104        }105        internal async Task<T> SendAsync<T>(string method, object args = null)106        {107            var response = await SendAsync(method, args).ConfigureAwait(false);108            return response.ToObject<T>(true);109        }110        internal async Task<CDPSession> CreateSessionAsync(TargetInfo targetInfo)111        {112            var sessionId = (await SendAsync<TargetAttachToTargetResponse>("Target.attachToTarget", new TargetAttachToTargetRequest113            {114                TargetId = targetInfo.TargetId,115                Flatten = true116            }).ConfigureAwait(false)).SessionId;117            return await GetSessionAsync(sessionId).ConfigureAwait(false);118        }119        internal bool HasPendingCallbacks() => _callbacks.Count != 0;120        #endregion121        internal void Close(string closeReason)122        {123            if (IsClosed)124            {125                return;126            }127            IsClosed = true;128            CloseReason = closeReason;129            Transport.StopReading();130            Disconnected?.Invoke(this, new EventArgs());131            foreach (var session in _sessions.Values.ToArray())132            {133                session.Close(closeReason);134            }135            _sessions.Clear();136            foreach (var response in _callbacks.Values.ToArray())137            {138                response.TaskWrapper.TrySetException(new TargetClosedException(139                    $"Protocol error({response.Method}): Target closed.",140                    closeReason));141            }142            _callbacks.Clear();143        }144        internal static Connection FromSession(CDPSession session) => session.Connection;145        internal CDPSession GetSession(string sessionId) => _sessions.GetValueOrDefault(sessionId);146        internal Task<CDPSession> GetSessionAsync(string sessionId) => _asyncSessions.GetItemAsync(sessionId);147        #region Private Methods148        private async void Transport_MessageReceived(object sender, MessageReceivedEventArgs e)149            => await _callbackQueue.Enqueue(() => ProcessMessage(e)).ConfigureAwait(false);150        private async Task ProcessMessage(MessageReceivedEventArgs e)151        {152            try153            {154                var response = e.Message;155                ConnectionResponse obj = null;156                if (response.Length > 0 && Delay > 0)157                {158                    await Task.Delay(Delay).ConfigureAwait(false);159                }160                try161                {162                    obj = JsonConvert.DeserializeObject<ConnectionResponse>(response, JsonHelper.DefaultJsonSerializerSettings);163                }164                catch (JsonException)165                {166                    return;167                }168                ProcessIncomingMessage(obj);169            }170            catch (Exception ex)171            {172                var message = $"Connection failed to process {e.Message}. {ex.Message}. {ex.StackTrace}";173                Close(message);174            }175        }176        private void ProcessIncomingMessage(ConnectionResponse obj)177        {178            var method = obj.Method;179            var param = obj.Params?.ToObject<ConnectionResponseParams>();180            if (method == "Target.attachedToTarget")181            {182                var sessionId = param.SessionId;183                var session = new CDPSession(this, param.TargetInfo.Type, sessionId);184                _asyncSessions.AddItem(sessionId, session);185            }186            else if (method == "Target.detachedFromTarget")187            {188                var sessionId = param.SessionId;189                if (_sessions.TryRemove(sessionId, out var session) && !session.IsClosed)190                {191                    session.Close("Target.detachedFromTarget");192                }193            }194            if (!string.IsNullOrEmpty(obj.SessionId))195            {196                var session = GetSession(obj.SessionId);197                session.OnMessage(obj);198            }199            else if (obj.Id.HasValue)200            {201                // If we get the object we are waiting for we return if202                // if not we add this to the list, sooner or later some one will come for it 203                if (_callbacks.TryRemove(obj.Id.Value, out var callback))204                {205                    if (obj.Error != null)206                    {207                        callback.TaskWrapper.TrySetException(new MessageException(callback, obj.Error));208                    }209                    else210                    {211                        callback.TaskWrapper.TrySetResult(obj.Result);212                    }213                }214            }215            else216            {217                MessageReceived?.Invoke(this, new MessageEventArgs218                {219                    MessageID = method,220                    MessageData = obj.Params221                });222            }223        }224        private void Transport_Closed(object sender, TransportClosedEventArgs e) => Close(e.CloseReason);225        #endregion226        #region Static Methods227        /// <summary>228        /// Gets default web socket factory implementation.229        /// </summary>230        [Obsolete("Use " + nameof(WebSocketTransport) + "." + nameof(WebSocketTransport.DefaultWebSocketFactory) + " instead")]231        public static readonly WebSocketFactory DefaultWebSocketFactory = WebSocketTransport.DefaultWebSocketFactory;232        internal static async Task<Connection> Create(string url, IConnectionOptions connectionOptions, CancellationToken cancellationToken = default)233        {234#pragma warning disable 618235            var transport = connectionOptions.Transport;236#pragma warning restore 618237            if (transport == null)238            {239                var transportFactory = connectionOptions.TransportFactory ?? WebSocketTransport.DefaultTransportFactory;240                transport = await transportFactory(new Uri(url), connectionOptions, cancellationToken).ConfigureAwait(false);241            }242            return new Connection(url, connectionOptions.SlowMo, transport);243        }244        /// <inheritdoc />245        public void Dispose()246        {247            Dispose(true);248            GC.SuppressFinalize(this);249        }250        /// <summary>251        /// Releases all resource used by the <see cref="Connection"/> object.252        /// It will raise the <see cref="Disconnected"/> event and dispose <see cref="Transport"/>.253        /// </summary>254        /// <remarks>Call <see cref="Dispose()"/> when you are finished using the <see cref="Connection"/>. The255        /// <see cref="Dispose()"/> method leaves the <see cref="Connection"/> in an unusable state.256        /// After calling <see cref="Dispose()"/>, you must release all references to the257        /// <see cref="Connection"/> so the garbage collector can reclaim the memory that the258        /// <see cref="Connection"/> was occupying.</remarks>259        /// <param name="disposing">Indicates whether disposal was initiated by <see cref="Dispose()"/> operation.</param>260        protected virtual void Dispose(bool disposing)261        {262            Close("Connection disposed");263            Transport.Dispose();264        }265        #endregion266    }267}...

CDPSession.cs

Source:CDPSession.cs

...72        /// <summary>73        /// Gets or sets a value indicating whether this <see cref="CDPSession"/> is closed.74        /// </summary>75        /// <value><c>true</c> if is closed; otherwise, <c>false</c>.</value>76        public bool IsClosed { get; internal set; }77        /// <summary>78        /// Connection close reason.79        /// </summary>80        public string CloseReason { get; private set; }81        /// <summary>82        /// Gets the logger factory.83        /// </summary>84        /// <value>The logger factory.</value>85        #endregion86        #region Public Methods87        internal void Send(string method, object args = null)88            => _ = SendAsync(method, args, false);89        /// <summary>90        /// Protocol methods can be called with this method.91        /// </summary>92        /// <param name="method">The method name</param>93        /// <param name="args">The method args</param>94        /// <typeparam name="T">Return type.</typeparam>95        /// <returns>The task.</returns>96        public async Task<T> SendAsync<T>(string method, object args = null)97        {98            var content = await SendAsync(method, args).ConfigureAwait(false);99            return content.ToObject<T>(true);100        }101        /// <summary>102        /// Protocol methods can be called with this method.103        /// </summary>104        /// <param name="method">The method name</param>105        /// <param name="args">The method args</param>106        /// <param name="waitForCallback">107        /// If <c>true</c> the method will return a task to be completed when the message is confirmed by Chromium.108        /// If <c>false</c> the task will be considered complete after sending the message to Chromium.109        /// </param>110        /// <returns>The task.</returns>111        /// <exception cref="PuppeteerSharp.PuppeteerException"></exception>112        public async Task<JObject> SendAsync(string method, object args = null, bool waitForCallback = true)113        {114            if (Connection == null)115            {116                throw new PuppeteerException(117                    $"Protocol error ({method}): Session closed. " +118                    $"Most likely the {TargetType} has been closed." +119                    $"Close reason: {CloseReason}");120            }121            var id = Connection.GetMessageID();122            MessageTask callback = null;123            if (waitForCallback)124            {125                callback = new MessageTask126                {127                    TaskWrapper = new TaskCompletionSource<JObject>(),128                    Method = method129                };130                _callbacks[id] = callback;131            }132            try133            {134                await Connection.RawSendASync(id, method, args, SessionId).ConfigureAwait(false);135            }136            catch (Exception ex)137            {138                if (waitForCallback && _callbacks.TryRemove(id, out _))139                {140                    callback.TaskWrapper.TrySetException(new MessageException(ex.Message, ex));141                }142            }143            return waitForCallback ? await callback.TaskWrapper.Task.ConfigureAwait(false) : null;144        }145        /// <summary>146        /// Detaches session from target. Once detached, session won't emit any events and can't be used to send messages.147        /// </summary>148        /// <returns></returns>149        /// <exception cref="T:PuppeteerSharp.PuppeteerException"></exception>150        public Task DetachAsync()151        {152            if (Connection == null)153            {154                throw new PuppeteerException($"Session already detached.Most likely the {TargetType} has been closed.");155            }156            return Connection.SendAsync("Target.detachFromTarget", new TargetDetachFromTargetRequest157            {158                SessionId = SessionId159            });160        }161        internal bool HasPendingCallbacks() => _callbacks.Count != 0;162        #endregion163        #region Private Methods164        internal void OnMessage(ConnectionResponse obj)165        {166            var id = obj.Id;167            if (id.HasValue && _callbacks.TryRemove(id.Value, out var callback))168            {169                if (obj.Error != null)170                {171                    callback.TaskWrapper.TrySetException(new MessageException(callback, obj.Error));172                }173                else174                {175                    callback.TaskWrapper.TrySetResult(obj.Result);176                }177            }178            else179            {180                var method = obj.Method;181                var param = obj.Params?.ToObject<ConnectionResponseParams>();182                MessageReceived?.Invoke(this, new MessageEventArgs183                {184                    MessageID = method,185                    MessageData = obj.Params186                });187            }188        }189        internal void Close(string closeReason)190        {191            if (IsClosed)192            {193                return;194            }195            CloseReason = closeReason;196            IsClosed = true;197            foreach (var callback in _callbacks.Values.ToArray())198            {199                callback.TaskWrapper.TrySetException(new TargetClosedException(200                    $"Protocol error({callback.Method}): Target closed.",201                    closeReason));202            }203            _callbacks.Clear();204            Disconnected?.Invoke(this, EventArgs.Empty);205            Connection = null;206        }207        #endregion208    }209}...

Target.cs

Source:Target.cs

...47                }48                var popupPage = await PageAsync().ConfigureAwait(false);49                openerPage.OnPopup(popupPage);50            });51            CloseTaskWrapper = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);52            IsInitialized = TargetInfo.Type != TargetType.Page || TargetInfo.Url != string.Empty;53            if (IsInitialized)54            {55                _initializedTaskWrapper.TrySetResult(true);56            }57        }58        #region Properties59        /// <summary>60        /// Gets the URL.61        /// </summary>62        /// <value>The URL.</value>63        public string Url => TargetInfo.Url;64        /// <summary>65        /// Gets the type. It will be <see cref="TargetInfo.Type"/>.66        /// Can be `"page"`, `"background_page"`, `"service_worker"`, `"shared_worker"`, `"browser"` or `"other"`.67        /// </summary>68        /// <value>The type.</value>69        public TargetType Type => TargetInfo.Type;70        /// <summary>71        /// Gets the target identifier.72        /// </summary>73        /// <value>The target identifier.</value>74        public string TargetId => TargetInfo.TargetId;75        /// <summary>76        /// Get the target that opened this target77        /// </summary>78        /// <remarks>79        /// Top-level targets return <c>null</c>.80        /// </remarks>81        public Target Opener => TargetInfo.OpenerId != null ?82            Browser.TargetsMap.GetValueOrDefault(TargetInfo.OpenerId) : null;83        /// <summary>84        /// Get the browser the target belongs to.85        /// </summary>86        public Browser Browser => BrowserContext.Browser;87        /// <summary>88        /// Get the browser context the target belongs to.89        /// </summary>90        public BrowserContext BrowserContext { get; }91        internal Task<bool> InitializedTask => _initializedTaskWrapper.Task;92        internal Task CloseTask => CloseTaskWrapper.Task;93        internal TaskCompletionSource<bool> CloseTaskWrapper { get; }94        internal Task<Page> PageTask { get; set; }95        #endregion96        /// <summary>97        /// Returns the <see cref="Page"/> associated with the target. If the target is not <c>"page"</c> or <c>"background_page"</c> returns <c>null</c>98        /// </summary>99        /// <returns>a task that returns a <see cref="Page"/></returns>100        public Task<Page> PageAsync()101        {102            if ((TargetInfo.Type == TargetType.Page || TargetInfo.Type == TargetType.BackgroundPage) && PageTask == null)103            {104                PageTask = CreatePageAsync();105            }106            return PageTask ?? Task.FromResult<Page>(null);107        }...

JSCoverage.cs

Source:JSCoverage.cs

...100            }101            catch (Exception ex)102            {103                var message = $"JSCoverage failed to process {e.MessageID}. {ex.Message}. {ex.StackTrace}";104                _client.Close(message);105            }106        }107        private async Task OnScriptParsedAsync(DebuggerScriptParsedResponse scriptParseResponse)108        {109            if (scriptParseResponse.Url == ExecutionContext.EvaluationScriptUrl ||110                (string.IsNullOrEmpty(scriptParseResponse.Url) && !_reportAnonymousScripts))111            {112                return;113            }114            try115            {116                var response = await _client.SendAsync<DebuggerGetScriptSourceResponse>("Debugger.getScriptSource", new DebuggerGetScriptSourceRequest117                {118                    ScriptId = scriptParseResponse.ScriptId...

CSSCoverage.cs

Source:CSSCoverage.cs

...98            }99            catch (Exception ex)100            {101                var message = $"CSSCoverage failed to process {e.MessageID}. {ex.Message}. {ex.StackTrace}";102                _client.Close(message);103            }104        }105        private async Task OnStyleSheetAddedAsync(CSSStyleSheetAddedResponse styleSheetAddedResponse)106        {107            if (string.IsNullOrEmpty(styleSheetAddedResponse.Header.SourceURL))108            {109                return;110            }111            try112            {113                var response = await _client.SendAsync<CssGetStyleSheetTextResponse>("CSS.getStyleSheetText", new CssGetStyleSheetTextRequest114                {115                    StyleSheetId = styleSheetAddedResponse.Header.StyleSheetId116                }).ConfigureAwait(false);...

Tracing.cs

Source:Tracing.cs

1ï»¿using System;2using System.Collections.Generic;3using System.IO;4using System.Threading.Tasks;5using PuppeteerSharp.Messaging;6namespace PuppeteerSharp7{8    /// <summary>9    /// You can use <see cref="Tracing.StartAsync(TracingOptions)"/> and <see cref="Tracing.StopAsync"/> to create a trace file which can be opened in Chrome DevTools or timeline viewer.10    /// </summary>11    /// <example>12    /// <code>13    /// await Page.Tracing.StartAsync(new TracingOptions14    /// {15    ///     Screenshots = true,16    ///     Path = _file17    /// });18    /// await Page.GoToAsync(TestConstants.ServerUrl + "/grid.html");19    /// await Page.Tracing.StopAsync();20    /// </code>21    /// </example>22    public class Tracing23    {24        private readonly CDPSession _client;25        private bool _recording;26        private string _path;27        private static readonly List<string> _defaultCategories = new List<string>()28        {29            "-*",30            "devtools.timeline",31            "v8.execute",32            "disabled-by-default-devtools.timeline",33            "disabled-by-default-devtools.timeline.frame",34            "toplevel",35            "blink.console",36            "blink.user_timing",37            "latencyInfo",38            "disabled-by-default-devtools.timeline.stack",39            "disabled-by-default-v8.cpu_profiler"40        };41        internal Tracing(CDPSession client)42        {43            _client = client;44        }45        /// <summary>46        /// Starts tracing.47        /// </summary>48        /// <returns>Start task</returns>49        /// <param name="options">Tracing options</param>50        public async Task StartAsync(TracingOptions options)51        {52            if (_recording)53            {54                throw new InvalidOperationException("Cannot start recording trace while already recording trace.");55            }5657            if (string.IsNullOrEmpty(options.Path))58            {59                throw new ArgumentException("Must specify a path to write trace file to.");60            }616263            var categories = options.Categories ?? _defaultCategories;6465            if (options.Screenshots)66            {67                categories.Add("disabled-by-default-devtools.screenshot");68            }6970            _path = options.Path;71            _recording = true;7273            await _client.SendAsync("Tracing.start", new74            {75                transferMode = "ReturnAsStream",76                categories = string.Join(", ", categories)77            });78        }7980        /// <summary>81        /// Stops tracing82        /// </summary>83        /// <returns>Stop task</returns>84        public async Task StopAsync()85        {86            var taskWrapper = new TaskCompletionSource<bool>();8788            async void EventHandler(object sender, TracingCompleteEventArgs e)89            {90                await ReadStream(e.Stream, _path);91                _client.TracingComplete -= EventHandler;92                taskWrapper.SetResult(true);93            }9495            _client.TracingComplete += EventHandler;9697            await _client.SendAsync("Tracing.end");9899            _recording = false;100101            await taskWrapper.Task;102        }103        private async Task ReadStream(string stream, string path)104        {105            using (var fs = new StreamWriter(path))106            {107                bool eof = false;108109                while (!eof)110                {111                    var response = await _client.SendAsync<IOReadResponse>("IO.read", new112                    {113                        handle = stream114                    });115116                    eof = response.Eof;117118                    await fs.WriteAsync(response.Data);119                }120            }121            await _client.SendAsync("IO.close", new122            {123                handle = stream124            });125        }126    }127}...

Worker.cs

Source:Worker.cs

...70            }71            catch (Exception ex)72            {73                var message = $"Worker failed to process {e.MessageID}. {ex.Message}. {ex.StackTrace}";74                _client.Close(message);75            }76        }77        private void OnExceptionThrown(RuntimeExceptionThrownResponse e) => _exceptionThrown(e.ExceptionDetails);78        private void OnExecutionContextCreated(RuntimeExecutionContextCreatedResponse e)79        {80            if (_jsHandleFactory == null)81            {82                _jsHandleFactory = (ctx, remoteObject) => new JSHandle(ctx, _client, remoteObject);83                _executionContext = new ExecutionContext(84                    _client,85                    e.Context,86                    null);87                _executionContextCallback.TrySetResult(_executionContext);88            }...

ProtocolStreamReader.cs

Source:ProtocolStreamReader.cs

...29                        var data = Encoding.UTF8.GetBytes(response.Data);30                        await fs.WriteAsync(data, 0, data.Length).ConfigureAwait(false);31                    }32                }33                await client.SendAsync("IO.close", new IOCloseRequest34                {35                    Handle = handle36                }).ConfigureAwait(false);37                return result.ToString();38            }39            finally40            {41                fs?.Dispose();42            }43        }44        internal static async Task<byte[]> ReadProtocolStreamByteAsync(CDPSession client, string handle, string path)45        {46            IEnumerable<byte> result = null;47            var eof = false;48            var fs = !string.IsNullOrEmpty(path) ? AsyncFileHelper.CreateStream(path, FileMode.Create) : null;49            try50            {51                while (!eof)52                {53                    var response = await client.SendAsync<IOReadResponse>("IO.read", new IOReadRequest54                    {55                        Handle = handle56                    }).ConfigureAwait(false);57                    eof = response.Eof;58                    var data = Convert.FromBase64String(response.Data);59                    result = result == null ? data : result.Concat(data);60                    if (fs != null)61                    {62                        await fs.WriteAsync(data, 0, data.Length).ConfigureAwait(false);63                    }64                }65                await client.SendAsync("IO.close", new IOCloseRequest66                {67                    Handle = handle68                }).ConfigureAwait(false);69                return result.ToArray();70            }71            finally72            {73                fs?.Dispose();74            }75        }76    }77}...

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10            });11            var page = await browser.NewPageAsync();12            var session = await page.Target.CreateCDPSessionAsync();13            await session.SendAsync("Page.enable");14            await session.CloseAsync();15            await page.WaitForNavigationAsync();16            await page.ScreenshotAsync("google.png");17            await browser.CloseAsync();18        }19    }20}

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    Args = new string[] { "--no-sandbox" }4});5var page = await browser.NewPageAsync();6var client = await page.Target.CreateCDPSessionAsync();7await client.CloseAsync();8await browser.CloseAsync();9var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11    Args = new string[] { "--no-sandbox" }12});13var page = await browser.NewPageAsync();14var client = await page.Target.CreateCDPSessionAsync();15await client.CloseAsync();16await browser.CloseAsync();17var browser = await Puppeteer.LaunchAsync(new LaunchOptions18{19    Args = new string[] { "--no-sandbox" }20});21var page = await browser.NewPageAsync();22var client = await page.Target.CreateCDPSessionAsync();23await client.CloseAsync();24await browser.CloseAsync();25var browser = await Puppeteer.LaunchAsync(new LaunchOptions26{27    Args = new string[] { "--no-sandbox" }28});29var page = await browser.NewPageAsync();30var client = await page.Target.CreateCDPSessionAsync();31await client.CloseAsync();32await browser.CloseAsync();33var browser = await Puppeteer.LaunchAsync(new LaunchOptions34{35    Args = new string[] { "--no-sandbox" }36});37var page = await browser.NewPageAsync();38var client = await page.Target.CreateCDPSessionAsync();39await client.CloseAsync();40await browser.CloseAsync();

Using AI Code Generation

1{2    public static async Task Main(string[] args)3    {4        var browser = await Puppeteer.LaunchAsync(new LaunchOptions5        {6        });7        var page = await browser.NewPageAsync();8        await page.WaitForSelectorAsync("input[title='Search']");9        var client = await page.Target.CreateCDPSessionAsync();10        await client.CloseAsync();11        await browser.CloseAsync();12    }13}14Related Posts: PuppeteerSharp.Page.CloseAsync() in C#15PuppeteerSharp.Page.CloseAsync() in C# PuppeteerSharp.CDPSession.SendAsync() in C#16PuppeteerSharp.CDPSession.SendAsync() in C# PuppeteerSharp.CDPSession.SendAsync() in C#17PuppeteerSharp.CDPSession.SendAsync() in C# PuppeteerSharp.Page.WaitForSelectorAsync() in C#18PuppeteerSharp.Page.WaitForSelectorAsync() in C# PuppeteerSharp.Page.WaitForNavigationAsync() in C#19PuppeteerSharp.Page.WaitForNavigationAsync() in C# PuppeteerSharp.Page.WaitForXPathAsync() in C#20PuppeteerSharp.Page.WaitForXPathAsync() in C# PuppeteerSharp.Page.WaitForRequestAsync() in C#21PuppeteerSharp.Page.WaitForRequestAsync() in C# PuppeteerSharp.Page.WaitForResponseAsync() in C#22PuppeteerSharp.Page.WaitForResponseAsync() in C# PuppeteerSharp.Page.WaitForFunctionAsync() in C#23PuppeteerSharp.Page.WaitForFunctionAsync() in C# PuppeteerSharp.Page.WaitForFunctionAsync() in C#

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.