Thanks for the question.. In this tutorial we discussed only the options to SignIn and Login using username/password. Currently I have not provided the functionality to update the password. But if required we can create an endpoint here github.com/microservice-oauth-security/user-authentication-service/tree/master/src/main/java/org/codewithanish/controller and implement a service layer to update the password. This service layer can in turn call github.com/microservice-oauth-security/user-authentication-service/blob/master/src/main/java/org/codewithanish/repository/UserDetailRepository.java to update this password in the database.

Yes sure, as seen in the technical design, I have two more modules to be completed (microservice and frontend).. once completed i will provide the the completed source code in description..