SAML with stormpath aspnetcore 4.0.0.rc3

wesleyb.38762 (Customer) asked a question.

Hello,

We have a web application, that use Stormpath for the identity management.

We are migrating this application to make it work with Okta.

This web app use the stormpath-aspnetcore (https://github.com/stormpath/stormpath-aspnetcore) framework, which its version 4.0.0 rc3 has been made to work with okta.

We have however questions about SAML management.

With Stormpath we are using SAML with our ADFS, with the The Service Provider Initiated Flow.

We initiated the flow with the C# code below (see **).

Then the route /StormpathCallback is handling the response (this route came from the stormpath-aspnetcore and stormpath-dotnet-owin-middleware).

How do we migrate SAML management to work with Okta ?

Does the /StormpathCallback is ported to work with Okta ? And if this is the case, how can we change the code below (see **) to work with Okta ?
Or do we have to handle everything and use a library like Kentor Authentication Services(https://github.com/KentorIT/authservices#kentor-authentication-services) ? (in other word we do not use anymore /StormpathCallback)

Thank you for your help.