log to file

src/utiles/LoggerUtils.js

@@ -0,0 +1,21 @@
+const {createLogger, format, transports} = require('winston');
+const {_, formatDate} = require('../workers/mongo_manager')
+const {printf, label, timestamp, combine} = format;
+
+const myFormat = printf(({level, message, label, timestamp}) => {
+    return `${timestamp} [${label}] ${level}: ${message}`;
+});
+
+const appointmentLogger = createLogger({
+    level: 'info',
+    format: combine(
+        label({label: 'appointment'}),
+        timestamp(),
+        myFormat
+    ),
+    transports: [
+        new transports.File({filename: "appointment_" + formatDate(new Date()) + ".log"}),
+    ],
+});
+
+module.exports = appointmentLogger