Was a user authorization system used in your previous project?

In my previous project, a user authorization system based on JWT (JSON Web Tokens) was used. When logging in, the user entered their login and password, the server verified them and issued a token, which the client saved and sent in the headers of subsequent requests to authenticate itself. This allowed for stateless authorization and simplified scaling of the application.

Example of using Spring Security for authorization in Java:

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf().disable()
            .authorizeRequests()
            .antMatchers("/login").permitAll()
            .anyRequest().authenticated()
            .and()
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }
}