Hands-On Spring Security 5 for Reactive Applications

The UserDetailsService bean

We will use hardcoded user details, against which we will authenticate. This is not how it has to be done for a production-ready application, but for simplicity and to explain the concepts, let's take this shortcut:

@Beanpublic MapReactiveUserDetailsService userDetailsRepository() {    UserDetails user = User.withUsername("user")        .password("{noop}password").roles("USER").build();    UserDetails admin = User.withUsername("admin")        .password("{noop}password").roles("USER","ADMIN").build();    return new MapReactiveUserDetailsService(user, admin);}

The bean returns the reactive user details service, containing hardcoded credentials for two users; one a normal user and the other an admin.