Spring Framework 5 - Security with Oauth2 -Restful - Mongodb - Testing

Testing with Postman

Set the username with your {clientId}
Set the passwrod with your {clientSecret}
Select Header and add Content-Type : application/x-www-form-urlencoded
Select raw and add grant_type=password&username={username}&password={password}
Send the request the server will send the response with the access_token
Change the type request for Get url to localhost:8080/users
In Authorization select Bearer Token and copy the access_token on token field
Send the request and the server will response if you have the required role