Listen for callbacks in dotNetBrowser - winforms

Question

How can I use dotnetbrowser doing the following in a winform application?
Create a listener that listen for callbacks to a specific redirect url.
Open url in dotnetbrowser. The url makes the callback to the redirect url in another thread
The listener catches the response from the callback.
I can do this with an ordinary webbrowser, but I would like it to be silent. That's why I try to use dotnetbrowser instead.
Is dotNetBrowser a good choice for this, or is there a better option?
This is from my test code with a non silent webbrowser. First I create a listener that listen to a redirectUri:
var listener = new HttpListener();
listener.Prefixes.Add(redirectURI);
listener.Start();
Then I start the url in a webbrowser:
Process p = Process.Start(url);
The started url will send a callback to the redirectUri. The listener will get it.
var context = await listener.GetContextAsync(); ;
string formData = string.Empty;
using (var body = context.Request.InputStream)
{
using (var reader = new System.IO.StreamReader(body, context.Request.ContentEncoding))
{
formData = reader.ReadToEnd();
}
}
listener.Close();

Answer 1

I found a solution with help from dotnetbrowser support site.
This is the winform constructor in my new test project:
public Form1()
{
webView = new BrowserView() { Dock = DockStyle.Fill };
Task.Run(() =>
{
engine = EngineFactory.Create(new EngineOptions.Builder
{
RenderingMode = RenderingMode.HardwareAccelerated,
LicenseKey = "your license key here"
}
.Build());
browser = engine.CreateBrowser();
})
.ContinueWith(t =>
{
webView.InitializeFrom(browser);
var listener = new HttpListener();
listener.Prefixes.Add(redirectURI);
listener.Start();
browser.Navigation.LoadUrl(url);
var context = listener.GetContextAsync().GetAwaiter().GetResult();
//Get data from redirectUri. You find this code from test example above, but not really relevant for the problem.
var formData = GetRequestPostData(context.Request);
listener.Close();
}, TaskScheduler.FromCurrentSynchronizationContext());
InitializeComponent();
FormClosing += Form1_FormClosing;
Controls.Add(webView);
this.Visible = false;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
browser?.Dispose();
engine?.Dispose();
}