日志管理

安装

npm install --save nest-winston winston winston-daily-rotate-file

配置

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { WinstonModule } from 'nest-winston';
import * as winston from 'winston';
import * as DailyRotateFile from "winston-daily-rotate-file"
async function bootstrap() {
  const app = await NestFactory.create(AppModule, {
    logger: WinstonModule.createLogger({
      level: 'info',
      format: winston.format.combine(
        winston.format.timestamp(),
        winston.format.json(),
      ),
      transports: [
        new DailyRotateFile({
          filename: 'src/logs/info-%DATE%.log',
          datePattern: 'YYYY-MM-DD',
          zippedArchive: true,
          maxSize: '20m',
          maxFiles: '15d',
          level: 'info',
        }),
        new DailyRotateFile({
          filename: 'src/logs/error-%DATE%.log',
          datePattern: 'YYYY-MM-DD',
          zippedArchive: true,
          maxSize: '20m',
          maxFiles: '15d',
          level: 'error',
        })
      ],
    })
  });
  await app.listen(3000);
}
bootstrap();