Secure an Angular SPA and an ASP.NET Core API using Auth0
https://damienbod.com/2021/05/24/secure-an-angular-spa-and-an-asp-net-core-api-using-auth0/
[!NOTE] Switch to BFF security
It is now recommended to use backend for frontend security instead of two separate applications with seperate security contexts.
See the following for implementation details:
https://www.npmjs.com/package/angular-auth-oidc-client
https://auth0.com/docs/quickstart/webapp/aspnet-core
https://docs.microsoft.com/en-us/aspnet/core/security/authorization/introduction