How to use Launcher class of PuppeteerSharp package

Best Puppeteer-sharp code snippet using PuppeteerSharp.Launcher

FixturesTests.cs

Source:FixturesTests.cs Github

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...34 public async Task ShouldCloseTheBrowserWhenTheConnectedProcessCloses()35 {36 var browserClosedTaskWrapper = new TaskCompletionSource<bool>();37 using var browserFetcher = new BrowserFetcher(Product.Chrome);38 var ChromiumLauncher = new ChromiumLauncher(39 (await browserFetcher.GetRevisionInfoAsync()).ExecutablePath,40 new LaunchOptions { Headless = true });41 await ChromiumLauncher.StartAsync().ConfigureAwait(false);42 var browser = await Puppeteer.ConnectAsync(new ConnectOptions43 {44 BrowserWSEndpoint = ChromiumLauncher.EndPoint45 });46 browser.Disconnected += (_, _) =>47 {48 browserClosedTaskWrapper.SetResult(true);49 };50 KillProcess(ChromiumLauncher.Process.Id);51 await browserClosedTaskWrapper.Task;52 Assert.True(browser.IsClosed);53 }54 [PuppeteerTest("fixtures.spec.ts", "Fixtures", "should close the browser when the node process closes")]55 [SkipBrowserFact(skipFirefox: true)]56 public async Task ShouldCloseTheBrowserWhenTheLaunchedProcessCloses()57 {58 var browserClosedTaskWrapper = new TaskCompletionSource<bool>();59 var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true }, TestConstants.LoggerFactory);60 browser.Disconnected += (_, _) =>61 {62 browserClosedTaskWrapper.SetResult(true);63 };64 KillProcess(browser.Launcher.Process.Id);65 await browserClosedTaskWrapper.Task;66 Assert.True(browser.IsClosed);67 }68 private void KillProcess(int pid)69 {70 var process = new Process();71 /​/​We need to kill the process tree manually72 /​/​See: https:/​/​github.com/​dotnet/​corefx/​issues/​2623473 if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))74 {75 process.StartInfo.FileName = "taskkill";76 process.StartInfo.Arguments = $"-pid {pid} -t -f";77 }78 else...

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Program.cs

Source:Program.cs Github

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...27 [28592:33396:0217/​074915.471:ERROR:shader_disk_cache.cc(601)] Shader Cache Creation failed: -228 [28592:33396:0217/​074915.473:ERROR:browser_gpu_channel_host_factory.cc(138)] Failed to launch GPU process.29 at PuppeteerSharp.ChromiumProcess.State.StartingState.StartCoreAsync(ChromiumProcess p)30 at PuppeteerSharp.ChromiumProcess.State.StartingState.StartCoreAsync(ChromiumProcess p)31 at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options)32 at PuppeteerSharp.Launcher.LaunchAsync(LaunchOptions options)33 */​34 KillPreviousWebBrowserProcesses();35 StartWebBrowser().Wait();36 }37 static void KillPreviousWebBrowserProcesses()38 {39 var matchingProcesses =40 System.Diagnostics.Process.GetProcesses()41 /​*42 2020-02-1743 .Where(process => process.StartInfo.Arguments.Contains(UserDataDirPath(), StringComparison.InvariantCultureIgnoreCase))44 */​45 .Where(ProcessIsWebBrowser)46 .ToList();...

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PuppeteerConsole.cs

Source:PuppeteerConsole.cs Github

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...12 private readonly static SemaphoreSlim _semaphoreSlim = new SemaphoreSlim(1, 1);13 private readonly static ConcurrentBag<Browser> _browsers = new ConcurrentBag<Browser>();14 public static IReadOnlyCollection<Browser> Browsers => _browsers;15 public static DirectoryInfo DefaultDirectory => new DirectoryInfo(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "SpiderX", "local-chromium"));16 public static async Task<Browser> LauncherBrowser(bool useHeadless, DirectoryInfo directory = null, int revision = 0)17 {18 var dir = directory ?? DefaultDirectory;19 if (!TryGetChromeExePath(dir, out var exeFile))20 {21 exeFile = await DownloadAsync(dir, revision);22 if (exeFile is null)23 {24 throw new IOException("Download of chrome.exe failed.");25 }26 }27 var browser = await PuppeteerSharp.Puppeteer.LaunchAsync(new LaunchOptions28 {29 Headless = useHeadless,30 ExecutablePath = exeFile.FullName...

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HeadlessChromiumPuppeteerLauncher.cs

Source:HeadlessChromiumPuppeteerLauncher.cs Github

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...3using System;4using System.Threading.Tasks;5namespace HeadlessChromium.Puppeteer.Lambda.Dotnet6{7 public class HeadlessChromiumPuppeteerLauncher8 {9 public static string[] DefaultChromeArgs = new[] 10 {11 "--disable-background-timer-throttling",12 "--disable-breakpad",13 "--disable-client-side-phishing-detection",14 "--disable-cloud-import",15 "--disable-default-apps",16 "--disable-dev-shm-usage",17 "--disable-extensions",18 "--disable-gesture-typing",19 "--disable-hang-monitor",20 "--disable-infobars",21 "--disable-notifications",22 "--disable-offer-store-unmasked-wallet-cards",23 "--disable-offer-upload-credit-cards",24 "--disable-popup-blocking",25 "--disable-print-preview",26 "--disable-prompt-on-repost",27 "--disable-setuid-sandbox",28 "--disable-speech-api",29 "--disable-sync",30 "--disable-tab-for-desktop-share",31 "--disable-translate",32 "--disable-voice-input",33 "--disable-wake-on-wifi",34 "--disk-cache-size=33554432",35 "--enable-async-dns",36 "--enable-simple-cache-backend",37 "--enable-tcp-fast-open",38 "--enable-webgl",39 "--hide-scrollbars",40 "--ignore-gpu-blacklist",41 "--media-cache-size=33554432",42 "--metrics-recording-only",43 "--mute-audio",44 "--no-default-browser-check",45 "--no-first-run",46 "--no-pings",47 "--no-sandbox",48 "--no-zygote",49 "--password-store=basic",50 "--prerender-from-omnibox=disabled",51 "--use-gl=swiftshader",52 "--use-mock-keychain",53 "--single-process",54 };55 private readonly ILoggerFactory loggerFactory;56 public HeadlessChromiumPuppeteerLauncher(ILoggerFactory loggerFactory)57 {58 this.loggerFactory = loggerFactory;59 }60 public Task<Browser> LaunchAsync()61 {62 return LaunchAsync(DefaultChromeArgs);63 }64 public async Task<Browser> LaunchAsync(string[] chromeArgs)65 {66 var chromeLocation = new ChromiumExtractor(loggerFactory).ExtractChromium();67 var launchOptions = new LaunchOptions()68 {69 ExecutablePath = chromeLocation,70 Args = chromeArgs,71 Headless = true72 };73 return await new Launcher(loggerFactory).LaunchAsync(launchOptions);74 }75 }76}...

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BrowserDisconnectTests.cs

Source:BrowserDisconnectTests.cs Github

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2using PuppeteerSharp.Tests.Attributes;3using PuppeteerSharp.Xunit;4using Xunit;5using Xunit.Abstractions;6namespace PuppeteerSharp.Tests.LauncherTests7{8 [Collection(TestConstants.TestFixtureCollectionName)]9 public class BrowserDisconnectTests : PuppeteerBrowserBaseTest10 {11 public BrowserDisconnectTests(ITestOutputHelper output) : base(output)12 {13 }14 [PuppeteerTest("launcher.spec.ts", "Browser.disconnect", "should reject navigation when browser closes")]15 [PuppeteerFact]16 public async Task ShouldRejectNavigationWhenBrowserCloses()17 {18 Server.SetRoute("/​one-style.css", _ => Task.Delay(10000));19 await using (var browser = await Puppeteer.LaunchAsync(TestConstants.DefaultBrowserOptions()))20 {...

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HtmlToPdfConverter.cs

Source:HtmlToPdfConverter.cs Github

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...14 var downloadTask = Task.Run(() => new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision));15 downloadTask.Wait();16 if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))17 {18 var path = Launcher.GetExecutablePath();19 Bash($"chmod 777 {path}");20 }21 browser = Task.Run(() => Puppeteer.LaunchAsync(new LaunchOptions { Headless = true, Args = new string[] { "--no-sandbox" } })).Result;22 }23 private void Bash(string cmd)24 {25 var escapedArgs = cmd.Replace("\"", "\\\"");26 var process = new Process()27 {28 StartInfo = new ProcessStartInfo29 {30 FileName = "/​bin/​bash",31 Arguments = $"-c \"{escapedArgs}\"",32 RedirectStandardOutput = true,...

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DefaultBrowserContextTests.cs

Source:DefaultBrowserContextTests.cs Github

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...6using PuppeteerSharp.Tests.Attributes;7using PuppeteerSharp.Xunit;8using Xunit;9using Xunit.Abstractions;10namespace PuppeteerSharp.Tests.LauncherTests11{12 [Collection(TestConstants.TestFixtureCollectionName)]13 public class BrowserTargetEventsTests : PuppeteerBrowserBaseTest14 {15 public BrowserTargetEventsTests(ITestOutputHelper output) : base(output)16 {17 }18 [PuppeteerTest("launcher.spec.ts", "Browser target events", "should work")]19 [SkipBrowserFact(skipFirefox: true)]20 public async Task ShouldWork()21 {22 var events = new List<string>();23 Browser.TargetCreated += (_, _) => events.Add("CREATED");24 Browser.TargetChanged += (_, _) => events.Add("CHANGED");...

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ExitingState.cs

Source:ExitingState.cs Github

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...8 {9 public ExitingState(StateManager stateManager) : base(stateManager)10 {11 }12 public override Task EnterFromAsync(LauncherBase p, State fromState, TimeSpan timeout)13 => !StateManager.TryEnter(p, fromState, this) ? StateManager.CurrentState.ExitAsync(p, timeout) : ExitAsync(p, timeout);14 public override async Task ExitAsync(LauncherBase p, TimeSpan timeout)15 {16 var waitForExitTask = WaitForExitAsync(p);17 await waitForExitTask.WithTimeout(18 async () =>19 {20 await StateManager.Killing.EnterFromAsync(p, this, timeout).ConfigureAwait(false);21 await waitForExitTask.ConfigureAwait(false);22 },23 timeout,24 CancellationToken.None).ConfigureAwait(false);25 }26 public override Task KillAsync(LauncherBase p) => StateManager.Killing.EnterFromAsync(p, this);27 }28}...

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Launcher

Using AI Code Generation

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1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"4});5var page = await browser.NewPageAsync();6await page.ScreenshotAsync("google.png");7await browser.CloseAsync();8await browser.DisposeAsync();9{10 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"11};12var browser = await Puppeteer.LaunchAsync(options);13var page = await browser.NewPageAsync();14await page.ScreenshotAsync("google.png");15await browser.CloseAsync();16await browser.DisposeAsync();17var browser = await Puppeteer.LaunchAsync(new LaunchOptions18{19 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"20});21var page = await browser.NewPageAsync();22await page.ScreenshotAsync("google.png");23await browser.CloseAsync();24await browser.DisposeAsync();25{26 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"27};28var browser = await Puppeteer.LaunchAsync(options);29var page = await browser.NewPageAsync();30await page.ScreenshotAsync("google.png");31await browser.CloseAsync();32await browser.DisposeAsync();33var browser = await Puppeteer.LaunchAsync(new LaunchOptions34{35 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"36});37var page = await browser.NewPageAsync();38await page.ScreenshotAsync("google.png");39await browser.CloseAsync();40await browser.DisposeAsync();

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Launcher

Using AI Code Generation

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1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9 await new BrowserFetcher().DownloadAsync(533271);10 var browser = await Puppeteer.LaunchAsync(new LaunchOptions11 {12 Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }13 });14 var page = await browser.NewPageAsync();15 await page.ScreenshotAsync("google.png");16 await browser.CloseAsync();17 }18 }19}20using PuppeteerSharp;21using System;22using System.Threading.Tasks;23{24 {25 static async Task Main(string[] args)26 {27 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);28 await new BrowserFetcher().DownloadAsync(533271);29 var browser = await Puppeteer.LaunchAsync(new LaunchOptions30 {31 Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }32 });33 var page = await browser.NewPageAsync();34 await page.ScreenshotAsync("google.png");35 await browser.CloseAsync();36 }37 }38}39using PuppeteerSharp;40using System;41using System.Threading.Tasks;42{43 {44 static async Task Main(string[] args)45 {46 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);47 await new BrowserFetcher().DownloadAsync(533271);48 var browser = await Puppeteer.LaunchAsync(new LaunchOptions49 {50 Args = new string[] { "--no-sandbox", "--disable-setuid-sandbox" }51 });52 var page = await browser.NewPageAsync();53 await page.ScreenshotAsync("google.png");54 await browser.CloseAsync();55 }56 }57}

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Launcher

Using AI Code Generation

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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 await page.ScreenshotAsync("google.png");14 }15 }16 }17}

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Launcher

Using AI Code Generation

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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 await page.ScreenshotAsync("google.png");14 }15 }16 }17}

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Launcher

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static async Task Main(string[] args)7 {8 Console.WriteLine("Hello World!");9 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);10 {11 };12 using (var browser = await Puppeteer.LaunchAsync(options))13 {14 using (var page = await browser.NewPageAsync())15 {16 await page.ScreenshotAsync("google.png");17 }18 }19 Console.WriteLine("Done");20 }21 }22}23using System;24using System.Threading.Tasks;25using PuppeteerSharp;26{27 {28 static async Task Main(string[] args)29 {30 Console.WriteLine("Hello World!");31 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);32 {33 };34 using (var browser = await Puppeteer.LaunchAsync(options))35 {36 using (var page = await browser.NewPageAsync())37 {38 await page.ScreenshotAsync("google.png");39 }40 }41 Console.WriteLine("Done");42 }43 }44}45using System;46using System.Threading.Tasks;47using PuppeteerSharp;48{49 {50 static async Task Main(string[] args)51 {52 Console.WriteLine("Hello World!");53 await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);54 {55 };56 using (var browser = await Puppeteer.LaunchAsync(options))57 {58 using (var page = await browser.NewPageAsync())59 {

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Launcher

Using AI Code Generation

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1using PuppeteerSharp;2using System.Threading.Tasks;3{4 {5 static void Main(string[] args)6 {7 MainAsync().Wait();8 }9 static async Task MainAsync()10 {11 {12 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"13 };14 using (var browser = await Puppeteer.LaunchAsync(options))15 using (var page = await browser.NewPageAsync())16 {17 await page.ScreenshotAsync("google.png");18 }19 }20 }21}22using PuppeteerSharp;23using System.Threading.Tasks;24{25 {26 static void Main(string[] args)27 {28 MainAsync().Wait();29 }30 static async Task MainAsync()31 {32 {33 ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe"34 };35 using (var browser = await Puppeteer.LaunchAsync(options))36 using (var page = await browser.NewPageAsync())37 {38 await page.ScreenshotAsync("google.png");39 }40 }41 }42}

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Launcher

Using AI Code Generation

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1using PuppeteerSharp;2using System.Threading.Tasks;3{4 {5 static async Task Main(string[] args)6 {7 var browser = await Puppeteer.LaunchAsync(new LaunchOptions8 {9 });10 var page = await browser.NewPageAsync();11 }12 }13}14using PuppeteerSharp;15using System.Threading.Tasks;16{17 {18 static async Task Main(string[] args)19 {20 var browser = await Puppeteer.LaunchAsync(new LaunchOptions21 {22 });23 var page = await browser.NewPageAsync();24 }25 }26}27using PuppeteerSharp;28using System.Threading.Tasks;29{30 {31 static async Task Main(string[] args)32 {33 var browser = await Puppeteer.LaunchAsync(new LaunchOptions34 {35 });36 var page = await browser.NewPageAsync();37 }38 }39}40using PuppeteerSharp;41using System.Threading.Tasks;42{43 {44 static async Task Main(string[] args)45 {46 var browser = await Puppeteer.LaunchAsync(new LaunchOptions47 {48 });49 var page = await browser.NewPageAsync();50 }51 }52}53using PuppeteerSharp;54using System.Threading.Tasks;55{56 {57 static async Task Main(string[] args)58 {59 var browser = await Puppeteer.LaunchAsync(new LaunchOptions60 {61 });62 var page = await browser.NewPageAsync();

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Launcher

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 static async Task Main(string[] args)6 {7 var options = new LaunchOptions { Headless = false };8 using (var browser = await Puppeteer.LaunchAsync(options))9 {10 var page = await browser.NewPageAsync();11 }12 }13}14using System;15using System.Threading.Tasks;16using PuppeteerSharp;17{18 static async Task Main(string[] args)19 {20 var options = new LaunchOptions { Headless = false };21 using (var browser = await Puppeteer.LaunchAsync(options))22 {23 var page = await browser.NewPageAsync();24 var page2 = await browser.NewPageAsync();25 }26 }27}28using System;29using System.Threading.Tasks;30using PuppeteerSharp;31{32 static async Task Main(string[] args)33 {

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Launcher

Using AI Code Generation

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1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5 {6 static void Main(string[] args)7 {8 RunAsync().GetAwaiter().GetResult();9 }10 static async Task RunAsync()11 {12 using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions13 {14 }))15 {16 using (var page = await browser.NewPageAsync())17 {18 await page.ScreenshotAsync("hackerrank.png");19 }20 }21 }22 }23}24using System;25using OpenQA.Selenium;26using OpenQA.Selenium.Chrome;27{28 {29 static void Main(string[] args)30 {31 ChromeOptions options = new ChromeOptions();32 options.AddArgument("--headless");33 IWebDriver driver = new ChromeDriver(options);34 Screenshot ss = ((ITakesScreenshot)driver).GetScreenshot();35 ss.SaveAsFile("hackerrank.png", ScreenshotImageFormat.Png);36 driver.Quit();37 }38 }39}40using System;41using OpenQA.Selenium;42using OpenQA.Selenium.Chrome;43{44 {45 static void Main(string[] args)46 {47 ChromeOptions options = new ChromeOptions();48 options.AddArgument("--headless");49 IWebDriver driver = new ChromeDriver(options);

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