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How to use DownloadAsync method of PuppeteerSharp.BrowserFetcher class

Best Puppeteer-sharp code snippet using PuppeteerSharp.BrowserFetcher.DownloadAsync

SaveWebPage.xaml.cs

Source:SaveWebPage.xaml.cs

...33        {34            //å¦æè¿ä¸æ¥åçå¼å¸¸äºï¼å¯ä»¥åè https://www.cnblogs.com/zhaotianff/p/13528507.html35            try36            {37                await new PuppeteerSharp.BrowserFetcher().DownloadAsync(PuppeteerSharp.BrowserFetcher.DefaultRevision);3839                var browser = await PuppeteerSharp.Puppeteer.LaunchAsync(new PuppeteerSharp.LaunchOptions40                {41                    Headless = true42                });4344                var page = await browser.NewPageAsync();  //æå¼ä¸ä¸ªæ°æ ç¾45                await page.GoToAsync(this.tbox_Url.Text); //è®¿é®é¡µé¢4647                //è®¾ç½®æªå¾éé¡¹48                PuppeteerSharp.ScreenshotOptions screenshotOptions = new PuppeteerSharp.ScreenshotOptions();49                //screenshotOptions.Clip = new PuppeteerSharp.Media.Clip() { Height = 0, Width = 0, X = 0, Y = 0 };//è®¾ç½®æªåªåºå50                screenshotOptions.FullPage = true; //æ¯å¦æªåæ´ä¸ªé¡µé¢51                screenshotOptions.OmitBackground = false;//æ¯å¦ä½¿ç¨éæèæ¯ï¼èä¸æ¯é»è®¤ç½è²èæ¯52                screenshotOptions.Quality = 100; //æªå¾è´¨é 0-100ï¼pngä¸å¯ç¨ï¼53                screenshotOptions.Type = PuppeteerSharp.ScreenshotType.Jpeg; //æªå¾æ ¼å¼5455                var fileName = Environment.CurrentDirectory + $"\\download\\{await page.GetTitleAsync()}.jpg";5657                if (System.IO.File.Exists(fileName))58                {59                    fileName = fileName.Replace(".jpg", $"{DateTime.Now.ToString("ffff")}.jpg");60                }6162                await page.ScreenshotAsync(fileName, screenshotOptions);6364                if (System.IO.File.Exists(fileName))65                {66                    BitmapImage bi = new BitmapImage();67                    bi.BeginInit();68                    bi.UriSource = new Uri(fileName, UriKind.Absolute);69                    bi.EndInit();70                    this.image.Source = bi;71                }72                else73                {74                    EMessageBox.Show("ä¿åç½é¡µæªå¾å¤±è´¥");75                }7677                //å¨æåè®°å¾å³éæµè§å¨åéæ¾èµæº78                browser.Disconnect();79                browser.Dispose();80            }81            catch(Exception ex)82            {83                EMessageBox.Show(ex.Message);84            }85        }8687        private async void btn_SaveAsPDF_Click(object sender, RoutedEventArgs e)88        {89            //æå¼ç½é¡µçæä½è·ä¸é¢æ¯ä¸æ ·ç90            try91            {92                await new PuppeteerSharp.BrowserFetcher().DownloadAsync(PuppeteerSharp.BrowserFetcher.DefaultRevision);93                var browser = await PuppeteerSharp.Puppeteer.LaunchAsync(new PuppeteerSharp.LaunchOptions94                {95                    Headless = true96                });97                var page = await browser.NewPageAsync();  //æå¼ä¸ä¸ªæ°æ ç¾98                await page.GoToAsync(this.tbox_Url.Text); //è®¿é®é¡µé¢99100                //è®¾ç½®PDFéé¡¹101                PuppeteerSharp.PdfOptions pdfOptions = new PuppeteerSharp.PdfOptions();102                pdfOptions.DisplayHeaderFooter = false; //æ¯å¦æ¾ç¤ºé¡µçé¡µè103                pdfOptions.FooterTemplate = "";   //é¡µèææ¬104105                var width = await page.EvaluateFunctionAsync<int>("function getWidth(){return document.body.scrollWidth}");106                var height = await page.EvaluateFunctionAsync<int>("function getHeight(){return document.body.scrollHeight}");
...

Form1.cs

Source:Form1.cs

...18            InitializeComponent();19        }20        private async void button1_Click(object sender, EventArgs e)21        {                      22            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);23            browser = await Puppeteer.LaunchAsync(new LaunchOptions24            {25                Headless = true26            });27            //å¦æawait new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);æ§è¡ä¸æå28            //å¯ä»¥æå¨è®¿é®https://commondatastorage.googleapis.com/chromium-browser-snapshots/index.html?prefix=Win_x64/ï¼ä¸è½½Chromiumæµè§å¨ï¼å¹¶è§£åå°æå®ä½ç½®29            //åéè¿ä»¥ä¸ä»£ç åå§å30            /*31             * LaunchOptions options = new LaunchOptions();32            options.Headless = true;33            options.DefaultViewport = null;34            //å¿½ç¥è¯ä¹¦éè¯¯35            options.IgnoreHTTPSErrors = true;36            //chromePathå°±æ¯ä¸è½½çChromiumæµè§å¨è§£åçä½ç½®          37             options.ExecutablePath = chromePath;38            browser = await Puppeteer.LaunchAsync(options);39            */40            var page = await browser.NewPageAsync();41            await page.GoToAsync(this.textBox1.Text);...

GistGithubService.cs

Source:GistGithubService.cs

...103        }104        private async Task<Uri> GetRedirectCallbackResult(Uri redirectPage)105        {106            var revisionInfo = await browserFetcher107                .DownloadAsync(PuppeteerSharp.BrowserFetcher.DefaultRevision);108            using var browser = await PuppeteerSharp.Puppeteer.LaunchAsync(new PuppeteerSharp.LaunchOptions109            {110                Headless = false,111                LogProcess = true,112                DumpIO = true113            });114            var page = await browser.NewPageAsync();115            var redirectResult = await page.GoToAsync(redirectPage.AbsoluteUri);116            var target = await browser.WaitForTargetAsync(e => e.Url.Contains(gitHubModel.RedirectUrl!));117            return new Uri(target.Url);118        }119    }120}...

BrowserProvider.cs

Source:BrowserProvider.cs

...36            logger.LogDebug("Download browser");37            using var browserFetcher = new BrowserFetcher(Options.Product);38            if (!string.IsNullOrEmpty(Options.Revision))39            {40                await browserFetcher.DownloadAsync(Options.Revision);41            }42            else43            {44                await browserFetcher.DownloadAsync();45            }46            logger.LogDebug("Browser downloaded");47        }48        logger.LogInformation("Start new Browser");49        return await PuppeteerSharp.Puppeteer.LaunchAsync(50            new LaunchOptions51            {52                Headless = Options.Headless,53                Args = Options.BrowserArgs,54                IgnoreHTTPSErrors = Options.IgnoreHTTPSErrors,55                DefaultViewport = Options.ViewPortOptions56            }, loggerFactory);57    }58}...

Browser.cs

Source:Browser.cs

...20                };21                entry.SetAbsoluteExpiration(TimeSpan.FromDays(1));22                Console.WriteLine("Downloading chromium");23                using var browserFetcher = new BrowserFetcher();24                await browserFetcher.DownloadAsync();2526                using (var browser = await Puppeteer.LaunchAsync(options))27                using (var page = await browser.NewPageAsync())28                {29                    await page.GoToAsync(url);30                    var content = await page.GetContentAsync();31                    var graph = OpenGraphNet.OpenGraph.ParseHtml(content);32                    return new Metadata33                    {34                        Image = graph.Image,35                        Title = graph.Title,36                        Url = graph.Url ?? new Uri(url),37                        Description = graph.Metadata["og:description"] != null && graph.Metadata["og:description"].Count > 0 ? graph.Metadata["og:description"][0] : ""38                    };
...

PuppeteerDocumentGenerator.cs

Source:PuppeteerDocumentGenerator.cs

...6    public class PuppeteerDocumentGenerator : DocumentGeneratorBase7    {8        public async Task<byte[]> Generate(string html)9        {10            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);11            var browser = await Puppeteer.LaunchAsync(new LaunchOptions12            {13                Headless = true,14                // If needed, we can specify a specific version of Chrome15                //ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",16                //IgnoredDefaultArgs = new string[] { "--disable-extensions" },17                //IgnoreDefaultArgs = true,18            });19            using (var page = await browser.NewPageAsync())20            {21                await page.SetContentAsync(html);22                var pdfData = await page.PdfDataAsync(new PdfOptions23                {24                    MarginOptions = new MarginOptions...

PuppeteerConnection.cs

Source:PuppeteerConnection.cs

...5    {6        public async Task<T> PuppeteerGrabber<T>(string? url, string? infoCode, string? waitSelector)7        {8            BrowserFetcher browserFetcher = new BrowserFetcher();9            await browserFetcher.DownloadAsync(BrowserFetcher.DefaultChromiumRevision);10            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions11            {12                Headless = false,13                IgnoreHTTPSErrors = true,14                /*15                Args = new[]16                {17                    "--proxy-server=http://ehmseto_01:YouMeK100@smoproxy:8080/",18                    "--no-sandbox",19                    "--disable-infobars",20                    "--disable-setuid-sandbox",21                    "--ignore-certificate-errors",22                }23                */...

PuppeteerSharpConverterCollectionExtensions.cs

Source:PuppeteerSharpConverterCollectionExtensions.cs

...7    {8        public static IServiceCollection AddPuppeteerSharpPdfConverter(this IServiceCollection services)9        {10            var browserFetcher = new BrowserFetcher();11            browserFetcher.DownloadAsync().GetAwaiter().GetResult();12            services.AddSingleton<IPdfConverter, PuppeteerSharpConverter>();13            return services;14        }15    }16}...

DownloadAsync

Using AI Code Generation

1var browserFetcher = new BrowserFetcher();2await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browserFetcher = new BrowserFetcher();4var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);5var browserFetcher = new BrowserFetcher();6var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);7await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);8var browserFetcher = new BrowserFetcher();9var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);11await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);12var browserFetcher = new BrowserFetcher();13var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);

DownloadAsync

Using AI Code Generation

1var browserFetcher = new BrowserFetcher();2var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions4{5});6var browserFetcher = new BrowserFetcher();7var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);8var browser = await Puppeteer.LaunchAsync(new LaunchOptions9{10});11var browserFetcher = new BrowserFetcher();12var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);13var browser = await Puppeteer.LaunchAsync(new LaunchOptions14{15});16var browserFetcher = new BrowserFetcher();17var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);18var browser = await Puppeteer.LaunchAsync(new LaunchOptions19{20});21var browserFetcher = new BrowserFetcher();22var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);23var browser = await Puppeteer.LaunchAsync(new LaunchOptions24{25});26var browserFetcher = new BrowserFetcher();27var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);28var browser = await Puppeteer.LaunchAsync(new LaunchOptions29{30});31var browserFetcher = new BrowserFetcher();32var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);

DownloadAsync

Using AI Code Generation

1var browserFetcher = new BrowserFetcher();2await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });4var browserFetcher = new BrowserFetcher();5await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);6var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });7var browserFetcher = new BrowserFetcher();8await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);9var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });10var browserFetcher = new BrowserFetcher();11await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);12var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });13var browserFetcher = new BrowserFetcher();14await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);15var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });16var browserFetcher = new BrowserFetcher();17await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);18var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });19var browserFetcher = new BrowserFetcher();20await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);21var browser = await Puppeteer.LaunchAsync(new LaunchOptions { ExecutablePath = browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision) });

DownloadAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var browserFetcher = new BrowserFetcher();9            await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10        }11    }12}

DownloadAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            DownloadAsync().Wait();9        }10        static async Task DownloadAsync()11        {12            var browserFetcher = new BrowserFetcher();13            var revisionInfo = await browserFetcher.DownloadAsync(533271);14            var browser = await Puppeteer.LaunchAsync(new LaunchOptions15            {16            });17            var page = await browser.NewPageAsync();18            await page.ScreenshotAsync("google.png");19            await browser.CloseAsync();20        }21    }22}

DownloadAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var browserFetcher = new BrowserFetcher();9            var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);10            Console.WriteLine(revisionInfo.RevisionInfo.Local);11        }12    }13}

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