Get HTML Code from a website after it completed loading

Question

I am trying to get the HTML Code from a specific website async with the following code:

var response = await httpClient.GetStringAsync("url");

But the problem is that the website usually takes another second to load the other parts of it. Which I need, so the question is if I can load the site first and read the content after a certain amount of time.

Sorry if this question already got answered, but I didn't really know what to search for.

Thanks, Twenty

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Edit #1

If you want to try it yourself the URL is http://iloveradio.de/iloveradio/, I need the Title and the Artist which do not immediately load.

Answer 1

You are on the wrong direction. The referenced site has playlist api which returns json. you can get information from :

http://iloveradio.de/typo3conf/ext/ep_channel/Scripts/playlist.php

Edit: Chome Inspector is used to find out Playlist link

Answer 2

You could use Puppeteer-Sharp:

await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false }))
using (var page = await browser.NewPageAsync())
{
    await page.SetViewportAsync(new ViewPortOptions() { Width = 1280, Height = 600 });
    await page.GoToAsync("http://iloveradio.de/iloveradio/");
    await page.WaitForSelectorAsync("#artisttitle DIV");
    var artist = await page.EvaluateExpressionAsync<string>("$('#artisttitle DIV')[0].innerText");
    Console.WriteLine(artist);
    Console.ReadLine();
}