According to this link , I can use a different identity provider, different from the providers out of the box, such as Active Directory, Google, Facebook. I have an IdentityServer4 hosted as a web application in the azure area and would like to add this as a custom identity provider. But when you go to the authorization / authentication click of my mobile application service on the azure portal, there are no options for a personalized identity provider.
I cannot find an online tutorial that allows you to add your own identity provider. Note that I'm looking at how to add a custom identity provider, rather than using the custom authentication logic that is documented in Azure. I would appreciate any help. Thanks.
I found this nice tutorial from Adrian Hall, where it discusses user authentication in detail.
https://adrianhall.imtqy.com/develop-mobile-apps-with-csharp-and-azure/chapter2/custom/
I just stumbled upon the same problem, there is currently no support, but you can vote for this implementation through this URI: Enable third-party authentication providers
I'm currently busy with POC, so I needed this feature and I came across this post: Secure Azure Functions with JWT Access Tokens This works great with my token provider. Hope this is for you too.