Initializes the admin user if it does not already exist.

The AuthenticationService class is responsible for user authentication and registration processes. <p> It provides methods to authenticate users, regi

Service class for sending emails to users. Uses JavaMailSender to send emails using SMTP.

This class is a Spring component that extends OncePerRequestFilter, which is a convenient base class for filter implementations. It filters incoming r

This service provides utility methods for creating, validating, and parsing JWT tokens. It uses the JJWT library to generate tokens and extract claims

Service class for logging out users. Uses TokenService to revoke the token used by the user. <p> This class implements the LogoutHandler interface fro

This class is a controller advice that handles exceptions globally for all REST endpoints. <p> It uses various @ExceptionHandler methods to handle spe

This class defines the security configuration for the application. <p> It enables web security and registers a JwtAuthenticationFilter and Authenticat

This interface represents the repository that will manage the persistence of the token entity. It extends the JpaRepository interface provided by Spri

Service class for managing tokens. Uses TokenRepository to retrieve and save tokens.

This interface represents the repository that will manage the persistence of the user entity. It extends the JpaRepository interface provided by Sprin

The UserService class handles business logic related to user accounts, such as saving and retrieving users, updating passwords, and validating user cr