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I have Wpf desktop application from which i am redirecting user to login to third party website (which use two step authentication). After user logs in third party website returns unique code to the call back url mentioned. Let's say if the callback url is any api call, it will return the code to that api call.

But here in my case the website is called from wpf app by using Process.Start("third party url"). Is there any way i can make third party website to return the unique code to wpf app ?? Basically I need to provide third party, a callback uri which i can detect in wpf app.

I am not sure what i am asking is even possible in wpf. if i had a any website this two step authentication would be so much easier but not sure how to do it in wpf.

Xero(third party) has provided here to do this by using httpListener but it's not working

Help !

Jolly
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    You need custom protocol handler. See this https://stackoverflow.com/questions/35626050/registering-custom-url-handler-in-c-sharp-on-windows-8 and this https://learn.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/platform-apis/aa767914(v=vs.85)?redirectedfrom=MSDN for details – Serg Feb 26 '21 at 06:02
  • @Serg Correct me if i am wrong but this reference are to launch the wpf application right ? In my case it will be running already i just need to execute specific code when this call back is called in my application – Jolly Feb 26 '21 at 06:11
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    Yes, URL handler will just run the specified app and pass arguments to it. If you need to pass arguments to the already running instance, you will need to do this manually with some kind of IPC (sockets, pipes, WM_COPY, COM and so on). – Serg Feb 26 '21 at 06:20

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The best way i could find to do this is by using web browser control in wpf app.There are so many browser control available for wpf. i used cefsharp chromium browser which can redirect user to specific url and it has frame load end event which is getting called when third party redirects back to specified url.

Jolly
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