src/main/java/ai/giskard/learnspringwebsockets/LearnSpringWebsocketsApplication.java

package ai.giskard.learnspringwebsockets;

import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import java.io.IOException;
import java.util.Enumeration;

@SpringBootApplication
public class LearnSpringWebsocketsApplication {

    public static void main(String[] args) {
        SpringApplication.run(LearnSpringWebsocketsApplication.class, args);
    }


    @Component
    class RequestWrapperFilter extends OncePerRequestFilter {
        @Override
        protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
                throws ServletException, IOException {
            Enumeration<String> headerNames = request.getHeaderNames();
            System.out.println("!!!! HEADERS");
            if (headerNames != null) {
                while (headerNames.hasMoreElements()) {
                    System.out.println("Header: " + request.getHeader(headerNames.nextElement()));
                }
            }
            filterChain.doFilter(request, response);
        }
    }


}