Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use OnMessage method of PuppeteerSharp.CDPSession class

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

Connection.cs

Source:Connection.cs

...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);...

CDPSession.cs

Source:CDPSession.cs

...177        }178        internal bool HasPendingCallbacks() => _callbacks.Count != 0;179        #endregion180        #region Private Methods181        internal void OnMessage(string message)182        {183            _logger.LogTrace("â Receive {Message}", message);184            JObject obj = null;185            try186            {187                obj = JObject.Parse(message);188            }189            catch (JsonException exc)190            {191                _logger.LogError(exc, "Failed to deserialize message", message);192                return;193            }194            var id = obj[MessageKeys.Id]?.Value<int>();195            if (id.HasValue && _callbacks.TryRemove(id.Value, out var callback))196            {197                if (obj[MessageKeys.Error] != null)198                {199                    callback.TaskWrapper.TrySetException(new MessageException(callback, obj));200                }201                else202                {203                    callback.TaskWrapper.TrySetResult(obj[MessageKeys.Result].Value<JObject>());204                }205            }206            else207            {208                var method = obj[MessageKeys.Method].AsString();209                var param = obj[MessageKeys.Params];210                if (method == "Tracing.tracingComplete")211                {212                    TracingComplete?.Invoke(this, new TracingCompleteEventArgs213                    {214                        Stream = param[MessageKeys.Stream].AsString()215                    });216                }217                else if (method == "Target.receivedMessageFromTarget")218                {219                    var sessionId = param[MessageKeys.SessionId].AsString();220                    if (_sessions.TryGetValue(sessionId, out var session))221                    {222                        session.OnMessage(param[MessageKeys.Message].AsString());223                    }224                }225                else if (method == "Target.detachedFromTarget")226                {227                    var sessionId = param[MessageKeys.SessionId].AsString();228                    if (_sessions.TryRemove(sessionId, out var session))229                    {230                        session.OnClosed();231                    }232                }233                MessageReceived?.Invoke(this, new MessageEventArgs234                {235                    MessageID = method,236                    MessageData = param...

OnMessage

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            {9            };10            using (var browser = await Puppeteer.LaunchAsync(options))11            {12                var page = await browser.NewPageAsync();13                var client = await page.Target.CreateCDPSessionAsync();14                await client.SendAsync("Page.enable");15                await client.SendAsync("Page.setDownloadBehavior", new {behavior = "allow", downloadPath = @"C:\Users\Public\Downloads\"});16                await page.ClickAsync("input[name='q']");17                await page.Keyboard.TypeAsync("PuppeteerSharp");18                await page.Keyboard.PressAsync("Enter");19                await page.ScreenshotAsync(@"C:\Users\Public\Downloads\google.png");20                await client.SendAsync("Page.stopLoading");21            }22        }23    }24}

OnMessage

Using AI Code Generation

1using System;2using System.Text;3using System.Threading.Tasks;4using PuppeteerSharp;5{6    {7        static async Task Main(string[] args)8        {9            {10                Args = new string[] { "--start-maximized" }11            };12            using (var browser = await Puppeteer.LaunchAsync(options))13            {14                using (var page = await browser.NewPageAsync())15                {16                    var session = await page.Target.CreateCDPSessionAsync();17                    await session.SendAsync("Network.enable");18                    await session.SendAsync("Network.setCacheDisabled", new { cacheDisabled = true });19                    await session.SendAsync("Network.setBypassServiceWorker", new { bypass = true });20                    session.MessageReceived += Session_MessageReceived;21                }22            }23        }24        private static void Session_MessageReceived(object sender, MessageEventArgs e)25        {26            Console.WriteLine(Encoding.UTF8.GetString(e.Message));27        }28    }29}30using System;31using System.Text;32using System.Threading.Tasks;33using PuppeteerSharp;34{35    {36        static async Task Main(string[] args)37        {38            {39                Args = new string[] { "--start-maximized" }40            };41            using (var browser = await Puppeteer.LaunchAsync(options))42            {43                using (var page = await browser.NewPageAsync())44                {45                    await page.SetRequestInterceptionAsync(true);46                    page.Request += Page_Request;47                }48            }49        }50        private static void Page_Request(object sender, RequestEventArgs e)51        {52            Console.WriteLine(e.Request

OnMessage

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using PuppeteerSharp.Messaging;5{6    {7        public async Task OnMessage(string message)8        {9            var msg = Message.FromJson(message);10            await OnMessage(msg);11        }12    }13}14using System;15using System.Threading.Tasks;16using PuppeteerSharp;17using PuppeteerSharp.Messaging;18{19    {20        public async Task OnMessage(Message message)21        {22            if (message == null)23            {24                return;25            }26            if (_callbacks.TryGetValue(message.Id, out var callback))27            {28                _callbacks.Remove(message.Id);29                callback(message.Error, message.Result);30            }31            {32                await _client.OnMessage(message);33            }34        }35    }36}37using System;38using System.Threading.Tasks;39using PuppeteerSharp;40using PuppeteerSharp.Messaging;41{42    {43        public async Task OnMessage(Message message)44        {45            if (message == null)46            {47                return;48            }49            if (_callbacks.TryGetValue(message.Id, out var callback))50            {51                _callbacks.Remove(message.Id);52                callback(message.Error, message.Result);53            }54            {55                await _client.OnMessage(message);56            }57        }58    }59}60using System;61using System.Threading.Tasks;62using PuppeteerSharp;63using PuppeteerSharp.Messaging;64{65    {66        public async Task OnMessage(Message message)67        {68            if (message == null)69            {70                return;71            }72            if (_callbacks.TryGetValue(message.Id, out var callback))73            {74                _callbacks.Remove(message.Id);75                callback(message.Error, message.Result);76            }77            {78                await _client.OnMessage(message);79            }80        }81    }82}83using System;

OnMessage

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            await RunExampleAsync();10        }11        static async Task RunExampleAsync()12        {13            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))14            using (var page = await browser.NewPageAsync())15            {16                var client = await page.Target.CreateCDPSessionAsync();17                await client.SendAsync("Fetch.enable", new18                {19                    patterns = new[] {20                        new {21                        }22                    }23                });24                client.MessageReceived += (sender, e) =>25                {26                    Console.WriteLine(e.MessageID);27                    Console.WriteLine(e.Message);28                };29                await Task.Delay(5000);30            }31        }32    }33}

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.