Who is responsible to create login form to get accessToken? Authorization server or Angular? [closed]

Answer 1

It should be part of Authorization server to route you to their login form and on successful user login , should return back to angular app with auth token (jwt token) which you can use to authorize api calls.

Answer 2

Who is responsible to create login form to get accessToken? Authorization server or Angular?

You need to generate a token from the Authorization server (Spring Boot API Server)

If My Resource server Rest API using another 3rd party REST api (say Facebook or google). so should I go auth code flow or client credentials flow?

It will be Auth code flow, but you need to manage the URL pattern for authentication.