Описание изменений

backend/utils/logger.js

@@ -0,0 +1,27 @@
+const winston = require('winston');
+const path = require('path');
+
+const logger = winston.createLogger({
+  level: process.env.LOG_LEVEL || 'info',
+  format: winston.format.combine(
+    winston.format.timestamp(),
+    winston.format.json()
+  ),
+  transports: [
+    new winston.transports.Console({
+      format: winston.format.combine(
+        winston.format.colorize(),
+        winston.format.simple()
+      )
+    }),
+    new winston.transports.File({
+      filename: path.join(__dirname, '../logs/error.log'),
+      level: 'error'
+    }),
+    new winston.transports.File({
+      filename: path.join(__dirname, '../logs/combined.log')
+    })
+  ]
+});
+
+module.exports = logger;