removed deprecated createLogger and replaced with getLogger

libs/logger/src/index.ts

@@ -7,7 +7,6 @@
 // Core logger classes and functions
 export { 
   Logger, 
-  createLogger, 
   getLogger,
   shutdownLoggers
 } from './logger';

libs/logger/src/logger.ts

@@ -29,10 +29,10 @@ function createTransports(serviceName: string): any {
       options: {
         colorize: true,
         translateTime: 'yyyy-mm-dd HH:MM:ss.l',
-        messageFormat: '[{service}] {msg}',
+        messageFormat: '[{service}{childName}] {msg}',
         singleLine: true,
         hideObject: false,
-        ignore: 'pid,hostname,service,environment,version',
+        ignore: 'pid,hostname,service,environment,version,childName',
         errorLikeObjectKeys: ['err', 'error'],
         errorProps: 'message,stack,name,code',
       }
@@ -61,7 +61,8 @@ function createTransports(serviceName: string): any {
         labels: {
           service: serviceName,
           environment: lokiConfig.LOKI_ENVIRONMENT_LABEL
-        }
+        },
+        ignore: 'childName',
       }
     });
   }
@@ -102,10 +103,13 @@ function getPinoLogger(serviceName: string): pino.Logger {
 export class Logger {
   private pino: pino.Logger;
   private context: LogContext;
+  private serviceName: string;
+  private childName?: string;
 
   constructor(serviceName: string, context: LogContext = {}) {
     this.pino = getPinoLogger(serviceName);
     this.context = context;
+    this.serviceName = serviceName;
   }
 
   /**
@@ -198,12 +202,31 @@ export class Logger {
   /**
    * Create child logger with additional context
    */
-  child(context: LogContext): Logger {
+  child(serviceName: string, context?: LogContext): Logger {
       // Create child logger that shares the same pino instance with additional context
     const childLogger = Object.create(Logger.prototype);
+    childLogger.serviceName = this.serviceName;
+    childLogger.childName = serviceName;
     childLogger.context = { ...this.context, ...context };
-    childLogger.pino = this.pino.child(context); // Let pino handle level inheritance naturally
+    const childBindings = {
+      service: this.serviceName,
+      childName: ' -> ' + serviceName,
+      ...(context || childLogger.context)
+    };
+    
+    childLogger.pino = this.pino.child(childBindings);
     return childLogger;
+  // }
+    // childLogger.pino = this.pino.child(context || childLogger.context); // Let pino handle level inheritance naturally
+    // return childLogger;
+  }
+
+  // Getters for service and context
+  getServiceName(): string {
+    return this.serviceName;
+  }
+  getChildName(): string | undefined {
+    return this.childName;
   }
 }
 
@@ -214,13 +237,6 @@ export function getLogger(serviceName: string, context?: LogContext): Logger {
   return new Logger(serviceName, context);
 }
 
-/**
- * Keep backward compatibility
- */
-export function createLogger(serviceName: string): pino.Logger {
-  return getPinoLogger(serviceName);
-}
-
 /**
  * Gracefully shutdown all logger instances
  * This should be called during application shutdown to ensure all logs are flushed