How to use BrowserFetcher method of PuppeteerSharp.BrowserFetcher class

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

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}");
...

GeneratePdf.cs

Source:GeneratePdf.cs

...52                name = $"{name}.pdf";53            try54            {55                // create a browserfetcher object which will handle the downloading of the chrome browser image56                using var browserFetcher = new BrowserFetcher(new BrowserFetcherOptions()57                {58                    // for azure functions, we need to use the temp path so we don't get a permission issue59                    Path = Path.GetTempPath()60                }) ;61                // download the browser image62                await browserFetcher.DownloadAsync();63                // launch the browser in headless mode from the temp dir we downloaded the image to64                await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { 65                    Headless = true,66                    ExecutablePath = browserFetcher.RevisionInfo(BrowserFetcher.DefaultChromiumRevision).ExecutablePath67                });68                // create a new page69                await using var page = await browser.NewPageAsync();70                await page.GoToAsync(url, WaitUntilNavigation.Networkidle0); // In case of fonts being loaded from a CDN, use WaitUntilNavigation.Networkidle0 as a second param.71                // change the viewport to the width of your choosing72                await page.SetViewportAsync(new ViewPortOptions73                {74                    DeviceScaleFactor = 1,75                    Width = width,76                    Height = 108077                });78                // dimensions = await page.EvaluateExpressionAsync<string>(jsWidth);79                await page.EvaluateExpressionHandleAsync("document.fonts.ready"); // Wait for fonts to be loaded. Omitting this might result in no text rendered in pdf.80                // use the screen mode for viewing the web page...

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

...9    class GistGithubService : IGistGithubService10    {11        private readonly GitHubClient client =12            new GitHubClient(new ProductHeaderValue("Patrick-Star-Helper"));13        private readonly PuppeteerSharp.BrowserFetcher browserFetcher =14            new PuppeteerSharp.BrowserFetcher();15        private readonly GitHubModel gitHubModel;16        public bool IsAuthenticated { get; private set; }17        private readonly ICredentialStore credentialStore;18        public GistGithubService(19            IAppConfigProvider configProvider,20            ICredentialStore credentialStore)21        {22            this.credentialStore = credentialStore;23            gitHubModel = configProvider.Configuration.GitHub!;24            browserFetcher.DownloadProgressChanged += Fetcher_DownloadProgressChanged;25        }26        private void Fetcher_DownloadProgressChanged(object sender, System.Net.DownloadProgressChangedEventArgs e)27        {28            Console.WriteLine("Downloading Chromium: {0}%", e.ProgressPercentage);29        }30        public async Task<bool> Authenticate()31        {32            var accessToken = await credentialStore.LoadAccessToken();33            //if (!string.IsNullOrEmpty(accessToken))34            //{35            //    IsAuthenticated = true;36            //    client.Credentials = new Credentials(accessToken);37            //    return true;38            //}39            var loginRequest = new OauthLoginRequest(gitHubModel.ClientId);40            foreach (var scope in gitHubModel.Scopes!)41                loginRequest.Scopes.Add(scope);42            var redirectPage = client.Oauth.GetGitHubLoginUrl(loginRequest);43            client.Credentials = await FetchGitCredential(redirectPage);44            await credentialStore.StoreAccessToken(client.Credentials.GetToken());45            IsAuthenticated = true;46            return true;47        }48        public async Task<string?> Create(GistModel gist)49        {50            try51            {52                var result = await client.Gist.Create(new NewGist53                {54                    Files =55                    {56                        [gist.Name] = gist.Content57                    },58                    Description = gist.Description59                });60                return result?.Id;61            }62            catch (Exception ex)63            {64                var msg = ex.Message;65                throw;66            }67        }68        public async Task<string?> Update(string id, GistModel gist)69        {70            var result = await client.Gist.Edit(id, new GistUpdate71            {72                Files =73                {74                    [gist.Name] = new GistFileUpdate75                    {76                        Content = gist.Content77                    }78                },79                Description = gist.Description80            });81            return result?.Id;82        }83        public async Task<GistModel?> Find(string id)84        {85            var result = await client.Gist.Get(id);86            if (result != null)87            {88                var firstEntry = result.Files.FirstOrDefault();89                return new GistModel(firstEntry.Value.Filename, firstEntry.Value.Content)90                {91                };92            }93            return null;94        }95        private async Task<Credentials> FetchGitCredential(Uri redirectPage)96        {97            var targetUrl = await GetRedirectCallbackResult(redirectPage);98            var queryString = QueryStringHelper.ToDictionary(targetUrl);99            var code = queryString[gitHubModel.TargetRedirectKey!];100            var result = await client.Oauth.CreateAccessToken(101                new OauthTokenRequest(gitHubModel.ClientId, gitHubModel.ClientSecret, code));102            return new Credentials(result.AccessToken);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}...

Program.cs

Source:Program.cs

...66        }67    }68    static async System.Threading.Tasks.Task StartWebBrowser()69    {70        var browserRevision = PuppeteerSharp.BrowserFetcher.DefaultChromiumRevision;71        var browserFetcher = new PuppeteerSharp.BrowserFetcher(new PuppeteerSharp.BrowserFetcherOptions72        {73            Path = BrowserDownloadDirPath()74        });75        await browserFetcher.DownloadAsync(browserRevision);76        browser = await PuppeteerSharp.Puppeteer.LaunchAsync(new PuppeteerSharp.LaunchOptions77        {78            Headless = false,79            UserDataDir = UserDataDirPath("default"),80            DefaultViewport = null,81            ExecutablePath = browserFetcher.RevisionInfo(browserRevision).ExecutablePath,82        });83        browserPage = (await browser.PagesAsync()).FirstOrDefault() ?? await browser.NewPageAsync();84        await browserPage.ExposeFunctionAsync("____callback____", (string returnValue) =>85        {...

PuppeteerGenerator.cs

Source:PuppeteerGenerator.cs

...85			return $"<div style=\"font-size:10px !important; color:#808080; padding-left:10px; text-align:'center'; width: 95%; \"  >{string.Concat(list)}</div>";86		}87		// check if puppeteer exists locally. Download if not88		private static async Task<string> DownloadPuppeteerToPath(string path) {89			var downloadPath = path.Replace($"Win64-{BrowserFetcher.DefaultRevision}\\", "");90			var fetcherOptions = new BrowserFetcherOptions { Path = downloadPath, Platform = Platform.Win64 };91			BrowserFetcher browserFetcher = new BrowserFetcher(fetcherOptions);92			var revs = browserFetcher.LocalRevisions();93			// download if not existing in local94			if (revs == null || !revs.Any())95				await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);96			return browserFetcher.GetExecutablePath(BrowserFetcher.DefaultRevision);97		}98	}99}...

BrowserProvider.cs

Source:BrowserProvider.cs

...33        }34        if (string.IsNullOrEmpty(Environment.GetEnvironmentVariable("PUPPETEER_EXECUTABLE_PATH")))35        {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            {...

PuppeteerConnection.cs

Source:PuppeteerConnection.cs

...4    public class PuppeteerConnection5    {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                */...

BrowserFetcher

Using AI Code Generation

1var fetcher = new BrowserFetcher();2await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions4{5    ExecutablePath = fetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)6});7var fetcher = new BrowserFetcher();8var revisionInfo = await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);9var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11});12var fetcher = new BrowserFetcher();13var revisionInfo = await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);14var browser = await Puppeteer.LaunchAsync(new LaunchOptions15{16    ExecutablePath = fetcher.GetExecutablePath(BrowserFetcher.DefaultRevision)17});18var fetcher = new BrowserFetcher();19var revisionInfo = await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);20var browser = await Puppeteer.LaunchAsync(new LaunchOptions21{22});23var fetcher = new BrowserFetcher();24var revisionInfo = await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);25var browser = await Puppeteer.LaunchAsync(new LaunchOptions26{27});28var fetcher = new BrowserFetcher();29var revisionInfo = await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);30var browser = await Puppeteer.LaunchAsync(new LaunchOptions31{32});33var fetcher = new BrowserFetcher();34var revisionInfo = await fetcher.DownloadAsync(BrowserFetcher.DefaultRevision);

BrowserFetcher

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.ExecutablePath);11        }12    }13}

BrowserFetcher

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.ExecutablePath);11            Console.ReadLine();12        }13    }14}

BrowserFetcher

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;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.ExecutablePath);11            Console.ReadLine();12        }13    }14}15public async Task<RevisionInfo> DownloadAsync(string revision)16using PuppeteerSharp;17using System;18using System.Threading.Tasks;19{20    {21        static async Task Main(string[] args)22        {23            var browserFetcher = new BrowserFetcher();24            var revisionInfo = browserFetcher.GetRevisionInfo(BrowserFetcher.DefaultRevision);25            Console.WriteLine(revisionInfo.ExecutablePath);26            Console.ReadLine();27        }28    }29}30public RevisionInfo GetRevisionInfo(string revision)

BrowserFetcher

Using AI Code Generation

1using PuppeteerSharp;2{3    {4        static void Main(string[] args)5        {6            var browserFetcher = new BrowserFetcher();7            var revisionInfo = browserFetcher.DownloadAsync("533271");8            System.Console.WriteLine(revisionInfo.Result.LocalPath);9        }10    }11}

BrowserFetcher

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static void Main(string[] args)8        {9            MainAsync().GetAwaiter().GetResult();10        }11        static async Task MainAsync()12        {13            var browserFetcher = new BrowserFetcher();14            var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);15            var browser = await Puppeteer.LaunchAsync(new LaunchOptions16            {17            });18            var page = await browser.NewPageAsync();19            await page.ScreenshotAsync("google.png");20            await browser.CloseAsync();21        }22    }23}24using PuppeteerSharp;25using System;26using System.IO;27using System.Threading.Tasks;28{29    {30        static void Main(string[] args)31        {32            MainAsync().GetAwaiter().GetResult();33        }34        static async Task MainAsync()35        {36            var browserFetcher = new BrowserFetcher();37            var revisionInfo = await browserFetcher.DownloadAsync(BrowserFetcher.DefaultRevision);38            var browser = await Puppeteer.LaunchAsync(new LaunchOptions39            {40            });41            var page = await browser.NewPageAsync();42            await page.ScreenshotAsync("google.png");43            await browser.CloseAsync();44        }45    }46}47using PuppeteerSharp;48using System;49using System.IO;50using System.Threading.Tasks;51{52    {53        static void Main(string[] args)54        {55            MainAsync().GetAwaiter().GetResult();56        }

BrowserFetcher

Using AI Code Generation

1var browserFetcher = new BrowserFetcher();2var revisionInfo = await browserFetcher.DownloadAsync(RevisionInfo.ChromeRevision);3var browser = await Puppeteer.LaunchAsync(new LaunchOptions4{5});6var page = await browser.NewPageAsync();7var title = await page.GetTitleAsync();8Console.WriteLine(title);9await browser.CloseAsync();

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