API dotnet with user Right

I am builder a Angular + dotnet core api app.

I pass the token jtw to the api to secure the end point.

I want my API to have only the right that the user has.

When i am doing this, I pass the jtw that the api have but this dont work because this is the authentication token on the authentication api.

How can I set the configuration so the app has the right that my user has on my okta domain ( on group and user management)