Winston file transport not working at Nest Js - nestjs

Question

I recently decided to add Winston to my NestJS project and faced some problems.
Problem
When moving the instantiation of Winston to the separate file (just to keep everything nice and clean) the file transport stops working and Logger only log the stuff to the console.
However if I will follow the official documentation winston doc
and call it in main.ts during the bootstrapping than it works without any problem.
import { WinstonModule } from 'nest-winston';
async function bootstrap() {
const app = await NestFactory.create(AppModule, {
logger: WinstonModule.createLogger({
// options (same as WinstonModule.forRoot() options)
})
});
await app.listen(3000);
}
bootstrap();
Here what I am doing and probably doing it wrong. I create helper class ->
/* eslint-disable #typescript-eslint/no-unused-vars */
import 'winston-daily-rotate-file';
import * as winston from 'winston';
import { Injectable, LogLevel, LoggerService } from '#nestjs/common';
import { join } from 'node:path';
import { utilities as nestWinstonModuleUtilities } from 'nest-winston';
#Injectable()
export class LoggerHelper implements LoggerService {
private logger: winston.Logger;
constructor() {
this.initializeLogger();
}
initializeLogger() {
this.logger = winston.createLogger({
format: winston.format.json(),
transports: [
new winston.transports.DailyRotateFile({
filename: 'application_log_%DATE%.log',
dirname: join(__dirname, './../log/debug/'),
datePattern: 'YYYY-MM-DD-HH',
zippedArchive: true,
maxSize: '20m',
maxFiles: '14d',
level: 'error'
}),
new winston.transports.Console({
format: winston.format.combine(
winston.format.timestamp(),
winston.format.ms(),
nestWinstonModuleUtilities.format.nestLike('App', {
prettyPrint: true
})
),
level: 'info'
})
]
});
}
log(message: any, ...optionalParams: any[]) {
this.logger.log('info',message);
}
error(message: any, ...optionalParams: any[]) {
this.logger.error('error',message);
}
warn(message: any, ...optionalParams: any[]) {
throw new Error('Method not implemented.');
}
debug?(message: any, ...optionalParams: any[]) {
throw new Error('Method not implemented.');
}
verbose?(message: any, ...optionalParams: any[]) {
throw new Error('Method not implemented.');
}
setLogLevels?(levels: LogLevel[]) {
throw new Error('Method not implemented.');
}
}
In the app module I add LoggerHelper as provider.
import { AppController } from './app.controller';
import { AppService } from './app.service';
import { AuthModule } from './components/auth/auth.module';
import { LoggerHelper } from './setting/logger';
import { Module } from '#nestjs/common';
import { MulterModule } from '#nestjs/platform-express';
import { TypeOrmModule } from '#nestjs/typeorm';
#Module({
imports: [
TypeOrmModule.forRoot(),
UserModule,
ServiceModule,
AuthModule,
MulterModule.register({
dest: './uploads'
}),
],
controllers: [AppController],
providers: [AppService, LoggerHelper]
})
export class AppModule {}
And then use it at place I need, passing through the class constructor
import { Injectable } from '#nestjs/common';
import { LoggerHelper } from './setting/logger';
#Injectable()
export class AppService {
constructor(private logger: LoggerHelper) {}
getServerInfo(): string {
this.logger.log('test');
return 'Server information will come later';
}
}
What basically happening is that the logs goes to console but never to the file. I also tried to use default File transport instead of Daily rotate, but result is same.