How to use AsyncMessageQueue class of PuppeteerSharp.Helpers package

Best Puppeteer-sharp code snippet using PuppeteerSharp.Helpers.AsyncMessageQueue

Connection.cs

Source:Connection.cs

...38            Transport.MessageReceived += Transport_MessageReceived;39            Transport.Closed += Transport_Closed;40            _callbacks = new ConcurrentDictionary<int, MessageTask>();41            _sessions = new ConcurrentDictionary<string, CDPSession>();42            MessageQueue = new AsyncMessageQueue(enqueueAsyncMessages, _logger);43            _asyncSessions = new AsyncDictionaryHelper<string, CDPSession>(_sessions, "Session {0} not found");44        }45        /// <summary>46        /// Occurs when the connection is closed.47        /// </summary>48        public event EventHandler Disconnected;49        /// <summary>50        /// Occurs when a message from chromium is received.51        /// </summary>52        public event EventHandler<MessageEventArgs> MessageReceived;53        internal event EventHandler<SessionAttachedEventArgs> SessionAttached;54        /// <summary>55        /// Gets the WebSocket URL.56        /// </summary>57        /// <value>The URL.</value>58        public string Url { get; }59        /// <summary>60        /// Gets the sleep time when a message is received.61        /// </summary>62        /// <value>The delay.</value>63        public int Delay { get; }64        /// <summary>65        /// Gets the Connection transport.66        /// </summary>67        /// <value>Connection transport.</value>68        public IConnectionTransport Transport { get; }69        /// <summary>70        /// Gets a value indicating whether this <see cref="Connection"/> is closed.71        /// </summary>72        /// <value><c>true</c> if is closed; otherwise, <c>false</c>.</value>73        public bool IsClosed { get; internal set; }74        /// <summary>75        /// Connection close reason.76        /// </summary>77        public string CloseReason { get; private set; }78        /// <summary>79        /// Gets the logger factory.80        /// </summary>81        /// <value>The logger factory.</value>82        public ILoggerFactory LoggerFactory { get; }83        internal AsyncMessageQueue MessageQueue { get; }84        internal int GetMessageID() => Interlocked.Increment(ref _lastId);85        internal Task RawSendASync(int id, string method, object args, string sessionId = null)86        {87            var message = JsonConvert.SerializeObject(88                new ConnectionRequest { Id = id, Method = method, Params = args, SessionId = sessionId },89                JsonHelper.DefaultJsonSerializerSettings);90            _logger.LogTrace("Send âº {Message}", message);91            return Transport.SendAsync(message);92        }93        internal async Task<JObject> SendAsync(string method, object args = null, bool waitForCallback = true)94        {95            if (IsClosed)96            {97                throw new TargetClosedException($"Protocol error({method}): Target closed.", CloseReason);...

AsyncMessageQueue.cs

Source:AsyncMessageQueue.cs

...10    /// <summary>11    /// Provides an async queue for responses for <see cref="CDPSession.SendAsync"/>, so that responses can be handled12    /// async without risk callers causing a deadlock.13    /// </summary>14    internal class AsyncMessageQueue : IDisposable15    {16        private readonly List<MessageTask> _pendingTasks;17        private readonly bool _enqueueAsyncMessages;18        private readonly ILogger _logger;19        private bool _disposed;20        public AsyncMessageQueue(bool enqueueAsyncMessages, ILogger logger = null)21        {22            _enqueueAsyncMessages = enqueueAsyncMessages;23            _logger = logger ?? NullLogger.Instance;24            _pendingTasks = new List<MessageTask>();25        }26        public void Enqueue(MessageTask callback, ConnectionResponse obj)27        {28            if (_disposed)29            {30                throw new ObjectDisposedException(GetType().FullName);31            }32            if (!_enqueueAsyncMessages)33            {34                HandleAsyncMessage(callback, obj);...

AsyncMessageQueue

Using AI Code Generation

1using PuppeteerSharp.Helpers;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 messageQueue = new AsyncMessageQueue();13            page.Console += (sender, e) => messageQueue.Enqueue(e.Message);14            var message = await messageQueue.DequeueAsync();15            Console.WriteLine(message.Text);16        }17    }18}19using PuppeteerSharp.Helpers;20using System;21using System.Threading.Tasks;22{23    {24        static async Task Main(string[] args)25        {26            var browser = await Puppeteer.LaunchAsync(new LaunchOptions27            {28            });29            var page = await browser.NewPageAsync();30            var messageQueue = new AsyncMessageQueue();31            page.Console += (sender, e) => messageQueue.Enqueue(e.Message);32            var message = await messageQueue.DequeueAsync(m => m.Text.Contains("Hello World!"));33            Console.WriteLine(message.Text);34        }35    }36}37using PuppeteerSharp.Helpers;38using System;39using System.Threading.Tasks;40{41    {42        static async Task Main(string[] args)43        {44            var browser = await Puppeteer.LaunchAsync(new LaunchOptions45            {46            });47            var page = await browser.NewPageAsync();48            var messageQueue = new AsyncMessageQueue();49            page.Console += (

AsyncMessageQueue

Using AI Code Generation

1using PuppeteerSharp.Helpers;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var browserFetcher = new BrowserFetcher();9            await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10            {11                ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)12            };13            var browser = await Puppeteer.LaunchAsync(options);14            var page = await browser.NewPageAsync();15            var asyncMessageQueue = new AsyncMessageQueue();16            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => window.innerWidth < 100"));17            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => window.innerHeight < 100"));18            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('The')"));19            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('quick')"));20            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('brown')"));21            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('fox')"));22            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('jumps')"));23            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('over')"));24            asyncMessageQueue.Add(page.WaitForFunctionAsync("() => document.body.innerText.includes('the')"));25            asyncMessageQueue.Add(page.WaitForFunctionAsync("()

AsyncMessageQueue

Using AI Code Generation

1using PuppeteerSharp.Helpers;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            var browser = await Puppeteer.LaunchAsync(options);10            var page = await browser.NewPageAsync();11            var messageQueue = new AsyncMessageQueue();12            page.Console += async (sender, e) =>13            {14                await messageQueue.EnqueueAsync(async () =>15                {16                    Console.WriteLine(e.Message.Text);17                });18            };19            await messageQueue.WaitUntilDrainedAsync();20            await browser.CloseAsync();21        }22    }23}24using PuppeteerSharp.Helpers;25using System;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            var options = new LaunchOptions { Headless = false };32            var browser = await Puppeteer.LaunchAsync(options);33            var page = await browser.NewPageAsync();34            var messageQueue = new AsyncMessageQueue();35            page.Console += (sender, e) =>36            {37                messageQueue.Enqueue(() =>38                {39                    Console.WriteLine(e.Message.Text);40                });41            };42            await messageQueue.WaitUntilDrainedAsync();43            await browser.CloseAsync();44        }45    }46}47using PuppeteerSharp.Helpers;48using System;49using System.Threading.Tasks;50{51    {52        static async Task Main(string[] args)53        {54            var options = new LaunchOptions { Headless = false };55            var browser = await Puppeteer.LaunchAsync(options);56            var page = await browser.NewPageAsync();57            var messageQueue = new AsyncMessageQueue();58            page.Console += (sender, e) =>59            {60                messageQueue.Enqueue(() =>61                {62                    Console.WriteLine(e.Message.Text);63                });64            };65            await messageQueue.WaitUntilDrainedAsync();66            await browser.CloseAsync();67        }68    }69}

AsyncMessageQueue

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4using PuppeteerSharp.Helpers;5{6    {7        static void Main(string[] args)8        {9            MainAsync().Wait();10        }11        static async Task MainAsync()12        {13            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });14            var page = await browser.NewPageAsync();15            var asyncMessageQueue = new AsyncMessageQueue(page);16            asyncMessageQueue.MessageReceived += (sender, message) =>17            {18                Console.WriteLine(message);19            };20            await asyncMessageQueue.WaitTillMessageReceivedAsync("Network.loadingFinished");21            await page.CloseAsync();22            await browser.CloseAsync();23        }24    }25}26using System;27using System.Threading.Tasks;28using PuppeteerSharp;29using PuppeteerSharp.Helpers;30{31    {32        static void Main(string[] args)33        {34            MainAsync().Wait();35        }36        static async Task MainAsync()37        {38            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });39            var page = await browser.NewPageAsync();40            var asyncMessageQueue = new AsyncMessageQueue(page);41            var message = await asyncMessageQueue.WaitForMessageAsync("Network.loadingFinished");42            Console.WriteLine(message);43            await page.CloseAsync();44            await browser.CloseAsync();45        }46    }47}48using System;49using System.Threading.Tasks;50using PuppeteerSharp;51using PuppeteerSharp.Helpers;52{53    {54        static void Main(string[] args)55        {56            MainAsync().Wait();57        }58        static async Task MainAsync()59        {60            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });61            var page = await browser.NewPageAsync();62            var asyncMessageQueue = new AsyncMessageQueue(page);63            var message = await asyncMessageQueue.WaitForMessageAsync("Network.loadingFinished", 1000);64            Console.WriteLine(message);65            await page.CloseAsync();66            await browser.CloseAsync();67        }68    }69}

AsyncMessageQueue

Using AI Code Generation

1var options = new LaunchOptions { Headless = false };2using (var browser = await Puppeteer.LaunchAsync(options))3using (var page = await browser.NewPageAsync())4{5    var messageQueue = new AsyncMessageQueue(page);6    messageQueue.MessageReceived += (sender, e) =>7    {8        Console.WriteLine($"Received message: {e.Message}");9    };10    await page.EvaluateExpressionAsync("alert('Hello World!')");11}12var options = new LaunchOptions { Headless = false };13using (var browser = await Puppeteer.LaunchAsync(options))14using (var page = await browser.NewPageAsync())15{16    var messageQueue = new AsyncMessageQueue(page);17    messageQueue.MessageReceived += (sender, e) =>18    {19        Console.WriteLine($"Received message: {e.Message}");20    };21    await page.EvaluateExpressionAsync("alert('Hello World!')");22}23var options = new LaunchOptions { Headless = false };24using (var browser = await Puppeteer.LaunchAsync(options))25using (var page = await browser.NewPageAsync())26{27    var messageQueue = new AsyncMessageQueue(page);28    messageQueue.MessageReceived += (sender, e) =>29    {30        Console.WriteLine($"Received message: {e.Message}");31    };32    await page.EvaluateExpressionAsync("alert('Hello World!')");33}34var options = new LaunchOptions { Headless = false };35using (var browser = await Puppeteer.LaunchAsync(options))36using (var page = await browser.NewPageAsync())37{38    var messageQueue = new AsyncMessageQueue(page);39    messageQueue.MessageReceived += (sender, e) =>40    {41        Console.WriteLine($"

AsyncMessageQueue

Using AI Code Generation

1using PuppeteerSharp.Helpers;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            await page.ScreenshotAsync("google.png");13            await browser.CloseAsync();14        }15    }16}17using PuppeteerSharp.Helpers;18using System;19using System.Threading.Tasks;20{21    {22        static async Task Main(string[] args)23        {24            var browser = await Puppeteer.LaunchAsync(new LaunchOptions25            {26            });27            var page = await browser.NewPageAsync();28            await page.ScreenshotAsync("google.png");29            await browser.CloseAsync();30        }31    }32}33   at PuppeteerSharp.Helpers.AsyncMessageQueue.SendAsync[T](String method, Object args)34   at PuppeteerSharp.Page.GoToAsync(String url, NavigationOptions options)35   at PuppeteerSharp.Program.Main(String[] args) in C:\Users\user\Documents\Visual Studio 2017\Projects\PuppeteerSharp\Program.cs:line 23

AsyncMessageQueue

Using AI Code Generation

1using PuppeteerSharp.Helpers;2var asyncMessageQueue = new AsyncMessageQueue();3var task = asyncMessageQueue.DequeueAsync();4asyncMessageQueue.Enqueue("Hello");5var msg = await task;6using PuppeteerSharp.Helpers;7var asyncMessageQueue = new AsyncMessageQueue();8asyncMessageQueue.Enqueue("Hello");9var msg = await asyncMessageQueue.DequeueAsync();10using PuppeteerSharp.Helpers;11var asyncMessageQueue = new AsyncMessageQueue();12var task = asyncMessageQueue.DequeueAsync();13asyncMessageQueue.Enqueue("Hello");14var msg = task.Result;15using PuppeteerSharp.Helpers;16var asyncMessageQueue = new AsyncMessageQueue();17asyncMessageQueue.Enqueue("Hello");18var task = asyncMessageQueue.DequeueAsync();19var msg = task.Result;20using PuppeteerSharp.Helpers;21var asyncMessageQueue = new AsyncMessageQueue();22asyncMessageQueue.Enqueue("Hello");23var task = asyncMessageQueue.DequeueAsync();24var msg = task.Result;25using PuppeteerSharp.Helpers;26var asyncMessageQueue = new AsyncMessageQueue();27asyncMessageQueue.Enqueue("Hello");28var task = asyncMessageQueue.DequeueAsync();29var msg = task.Result;

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.