mdc

package com.example.observability;

public final class CorrelationIdConstants {

    public static final String HEADER_NAME = "X-Correlation-Id";
    public static final String MDC_KEY = "correlationId";

package com.example.tracing;

import jakarta.servlet.Filter;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;
import jakarta.servlet.ServletRequest;