use camelcase file names from now on...

src/utilities/logger.ts

@@ -0,0 +1,20 @@
+import pino from 'pino'
+
+const logger = pino({
+  level: process.env.LOG_LEVEL || 'debug',
+  transport: {
+    target: 'pino/file',
+    options: {
+      destination: './logs/app.log',
+      mkdir: true
+    }
+  },
+  formatters: {
+    level: (label) => {
+      return { level: label.toUpperCase() }
+    },
+  },
+  timestamp: pino.stdTimeFunctions.isoTime
+})
+
+export default logger