Use angular 4 login form to authenticate the app with IdentityServer 4

Question

Is there a way to use a login form from my angular 4 application and post to the identityserver 4 project in order to authenticate the Angular app.

I'm using oidc-client in the Angular app

Actually, to authenticate the Angular App, the user is redirect to the Identity Server 4 project where the login form is sit, then return back to the angular app with the token. This token is saved and used to call Web API application.

Thanks a lot

Answer 1

Below is my answer to the same question asked before:

Technically it is possible with "resource owner password flow", but in that model identity provider can not trust your application and will not create a session for your user. Thus such non-interactive approach is not truly SSO.
For 2019 the recommended flow for any web app such as Angular SPA is Code flow with PKCE extension, as described here or there.