Update OidcClient samples to .NET 9

[josephdecock]

No description provided.

[acaliaro]

@josephdecock an OOT question... why "New issue" button does not allow you to open a new issue?

[Eddie-Hartman]

@josephdecock I noticed the inability to make a new issue as well:

What I wanted to report is that the MauiApp sample doesn't work with Windows. I get:

Exception thrown: 'System.PlatformNotSupportedException' in Microsoft.Maui.Essentials.dll
Exception thrown: 'System.PlatformNotSupportedException' in System.Private.CoreLib.dll

I updated to the latest package in the sample and it still did not work. Is Windows not supported for the OidcClient?

Is this just because the sample is written in Maui? What I'm looking for is an OIDC auth flow for Maui with Windows, iOS, and Android support.

[josephdecock]

Thanks to you both for raising the issue with our new issue template. We will get that fixed soon! The intention is that we would like to have users create support and feature requests in our discussion community, and the new issue template should be linking over there. Please feel free to open a discussion here: https://github.com/orgs/DuendeSoftware/discussions.

With regard to a Maui sample that also works on desktop, we don't have such a sample. The Maui sample in this repo shows how to build for iOS and android but not desktop. There are some limitations with the Maui WebAuthenticator that we built the sample with (https://github.com/DuendeSoftware/foss/blob/main/identity-model-oidc-client/samples/Maui/MauiApp1/MauiApp1/MauiAuthenticationBrowser.cs) so it only supports mobile. Let's start a feature request in the community discussion space - if there's interest and upvotes, we can take that into account when prioritizing work.