How to register an Interceptor in Spring Boot 3 and Spring Framework 6

I'm building a backend using Spring Boot 3.1.0-SNAPSHOT, which uses Spring Framework 6x.

Interceptor:

@Slf4j
public class MyInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        log.info("preHandle");
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        log.info("afterCompletion");
    }
}

In previous versions (Spring Boot 2), the way to add an Interceptor was:

@Configuration
public class AppConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
     registry.addInterceptor( new MyInterceptor());
    }

}

Now, the correct way to add this type of configuration class is:

@Configuration
public class AppConfig {

    // Not working now
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
     registry.addInterceptor( new MyInterceptor()).addPathPatterns("/api/**");
    }

}

How to add an Interceptor now?

I have tried:

@Configuration
public class AppConfig {

    @Bean
    public InterceptorRegistry interceptorRegistry() {
        InterceptorRegistry registry = new InterceptorRegistry();
        registry.addInterceptor(new MyInterceptor());
        return registry;
    }

}

Not working...

A working example is by using MappedInterceptor:

@Configuration
public class AppConfig {

    @Bean
    public MappedInterceptor loginInter() {
        return new MappedInterceptor(null, new MyInterceptor());
    }

}

But according to other threads here, for example this one https://stackoverflow.com/questions/69816821/mappedinterceptor-bean-vs-webmvcconfigurer-addinterceptors-what-is-the-correct, says that the correct way is by using registry.addInterceptor(). Sadly is not working for me this way.

How to correctly register an Interceptor now?

I was able to still use the HandlerInterceptor with Spring Boot 3 replacing the javax class imports to jakarta:

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

@Component
public class AuthorizeInterceptorConfig implements HandlerInterceptor {

@Autowired
private AuthorizeController authorizeController;

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse 
 response, Object handler) {
	return authorizeController.isValidUser(request.getHeader("X-Document-Id"));
}

According to https://docs.spring.io/spring-boot/docs/3.0.5/reference/pdf/spring-boot-reference.pdf

We can still use @Configuration annotated class that implements WebMvcConfigurer but without @EnableWebMvc annotation for this use case. So, the following is still valid.

@Configuration
public class AppConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
     registry.addInterceptor( new CustomInterceptor());
    }

}