Web authenticator with MAUI (.NET 8): too many redirections

[erossini]

Type of issue

Other (describe below)

Description

I'm trying to use the Web authenticator in a MAUI project built with .NET 8. I followed the Microsoft documentation.

I created the API using the code from the documentation and published it on a public website. Then, I configured the MAUI app following the documentation.

The result is when I try to log in with Microsoft (the only provider I was trying), the first time I have been asked to insert my Microsoft account. Although I closed the app and reopen it, then I tried to log in, I got an error "too many redirections" as you see in the following screenshot.

I saw this post but it is not clear to me what the fix is. Plus, from the documentation, the Web authenticator doesn't work with Windows. DO you know if there is any workaround?

Page URL

https://learn.microsoft.com/en-us/dotnet/maui/platform-integration/communication/authentication?view=net-maui-8.0&tabs=android

Content source URL

https://github.com/dotnet/docs-maui/blob/main/docs/platform-integration/communication/authentication.md

Document Version Independent Id

829bc017-4a10-6ca5-0717-e1e62f59aacc

Article author

@davidbritch

Metadata

• ID: 829bc017-4a10-6ca5-0717-e1e62f59aacc
• Service: dotnet-mobile
• Sub-service: dotnet-maui

[davidbritch]

Hi @erossini

The solution on Windows is basically to do as it says at dotnet/maui#2702 (comment)

Being honest, WebAuthenticator is really for using when you need to use web auth with a provider other than one of the main providers (e.g. Microsoft, Google, Apple, Facebook etc.). If you're using one of the main auth providers, a better approach would be to use MSAL - https://learn.microsoft.com/en-us/entra/identity-platform/msal-overview - it does fully work with .NET MAUI.

https://github.com/Azure-Samples/ms-identity-dotnetcore-maui/tree/main and https://github.com/Azure-Samples/ms-identity-docs-code-dotnet/tree/main/xplat-maui may help.