title: Mule 4 HTTP Request Client to access OAuth 2 end point
body: <p>There is an external service (lets say "<a href="https://external-service.com/service" rel="nofollow noreferrer">https://external-service.com/service</a>") which is secured by OAuth2. I have client ID (Lets say "123_my_client_id"), Secret ID ("324_mysecret") and the access token URL ( lets say "<a href="https://access-token.com/access-token" rel="nofollow noreferrer">https://access-token.com/access-token</a>") which returns me the token.<br>
  I want to access this service with my Mule 4 Http Request. I followed this <a href="https://docs.mulesoft.com/connectors/http/http-authentication#oauth2-client-credentials" rel="nofollow noreferrer">https://docs.mulesoft.com/connectors/http/http-authentication#oauth2-client-credentials</a>, but couldn't find any workable solution.   </p>
  
  <p>This can be done in Mule 3.9. but still struggling to set up this http request configuration for Mule 4. Can anyone please help to setup this request config .</p>