logback

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <springProperty scope="context" name="APP_NAME" source="spring.application.name"/>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>

package com.example.observability;

public final class CorrelationIdConstants {

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