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Puppeteer Sharp

NuGet Build status Demo build status CodeFactor Backers

Puppeteer Sharp is a .NET port of the official Node.JS Puppeteer API.

Useful links

Prerequisites

How to Contribute and Provide Feedback

Some of the best ways to contribute are to try things out file bugs and fix issues.

If you have an issue or a question:

Contributing Guide

See this document for information on how to contribute.

Usage

Take screenshots

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
    Headless = true
});
var page = await browser.NewPageAsync();
await page.GoToAsync("http://www.google.com");
await page.ScreenshotAsync(outputFile);

You can also change the view port before generating the screenshot

await page.SetViewportAsync(new ViewPortOptions
{
    Width = 500,
    Height = 500
});

Generate PDF files

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
var browser = await Puppeteer.LaunchAsync(new LaunchOptions
{
    Headless = true
});
var page = await browser.NewPageAsync();
await page.GoToAsync("http://www.google.com");
await page.PdfAsync(outputFile);

Inject HTML

using(var page = await browser.NewPageAsync())
{
    await page.SetContentAsync("<div>My Receipt</div>");
    var result = await page.GetContentAsync();
    await page.PdfAsync(outputFile);
    SaveHtmlToDB(result);
}

Evaluate Javascript

using (var page = await browser.NewPageAsync())
{
    var seven = await page.EvaluateExpressionAsync<int>("4 + 3");
    var someObject = await page.EvaluateFunctionAsync<dynamic>("(value) => ({a: value})", 5);
    Console.WriteLine(someObject.a);
}

Wait For Selector

using (var page = await browser.NewPageAsync())
{
    await page.GoToAsync("http://www.spapage.com");
    await page.WaitForSelectorAsync("div.main-content")
    await page.PdfAsync(outputFile));
}

Wait For Function

using (var page = await browser.NewPageAsync())
{
    await page.GoToAsync("http://www.spapage.com");
    var watchDog = page.WaitForFunctionAsync("()=> window.innerWidth < 100");
    await page.SetViewportAsync(new ViewPortOptions { Width = 50, Height = 50 });
    await watchDog;
}

Connect to a remote browser

var options = new ConnectOptions()
{
    BrowserWSEndpoint = $"wss://www.externalbrowser.io?token={apikey}"
};

var url = "https://www.google.com/";

using (var browser = await PuppeteerSharp.Puppeteer.ConnectAsync(options))
{
    using (var page = await browser.NewPageAsync())
    {
        await page.GoToAsync(url);
        await page.PdfAsync("wot.pdf");
    }
}

Monthly reports

Backers

Support us with a monthly donation and help us continue our activities. Become a backer.

Thanks

Thanks to JetBrains for a community Resharper license to use on this project.

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  • C# 95.5%
  • HTML 2.8%
  • Other 1.7%