title: what is the best way to manage and store Oauth2 token in spring boot?
body: <p>I have a spring boot application that communicates with an external rest API that uses Oauth2  and returns a token and refresh token valid for 90 days. 
  My question is what is the best way to manage and store these tokens or atleast store the refresh token (i'm currently thinking of storing them in the database).</p>