Clean logger initialization.

src/index.js

@@ -1,5 +1,4 @@
 const uuid = require('uuid');
-const utils = require('./modules/utils');
 const connection = require('./modules/connection');
 const { setLogger } = require('./modules/logger');
 
@@ -31,15 +30,6 @@ module.exports = (config) => {
     // generate a hostname so we can track this connection on the broker (rabbitmq management plugin)
     hostname: process.env.HOSTNAME || process.env.USER || uuid.v4(),
 
-    /**
-     * A logger object with a log function for each of the log levels ("debug", "info", "warn", or "error").
-     * Each log function receives one parameter containing a log event with the following fields:
-     * * message - A string message describing the event. Always present.
-     * * error - An 'Error' object in case one is present.
-     * * params - An optional object containing extra parameters that can provide extra context for the event.
-     */
-    logger: utils.emptyLogger,
-
     ...config,
   };
 

src/modules/logger.js

@@ -1,4 +1,6 @@
-let instance;
+const { emptyLogger } = require('./utils');
+
+let instance = emptyLogger;
 
 module.exports = {
   /**
@@ -7,7 +9,9 @@ module.exports = {
    * @param {object} logger The logger object.
    */
   setLogger(logger) {
-    instance = logger;
+    if (logger) {
+      instance = logger;
+    }
   },
 
   logger: Object.freeze({