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better-loger

v1.0.8

Published

nodejs logger

Downloads

9

Readme

node logger

import Logger from 'better-loger';
import FileAppender from 'better-loger/file_appender';
import ConsoleAppender from 'better-loger/console_appender';

// 日志输出到文件,配置logrotate:
const fileAppender = new FileAppender({
  // 标准输出目标
  locate: 'access.log',
  // 错误输出目标
  errorLocate: 'error.log',
  // rotate保留最多3个文件
  keepLogNum: 3,
  // 每天做一次rotate
  rotateInterval: 24 * 60 * 60 * 1000,
  // 当使用级别>=info时候,才输出到文件
  threshold: 'info',
  // 做rotate的最小大小:200Mb
  thresholdSize: 200 * 1024 * 1024,
});

// 输出到console
const consoleAppender = new ConsoleAppender({
  threshold: 'debug'
});

// 获取logger对象,唯一key,默认集成了consoleAppender
const logger = Logger.get('uniqId');
// 设置日志等级,当方法等级超过设置的等级且超过了appender等级,才会输出
logger.setLevel('debug')
// 设置appender为console
logger.setAppender(consoleAppender);
// 添加文件appender
logger.addAppender(fileAppender);

// 使用默认模板
logger.debug('这是一条debug消息');
// 自定义模板,用来记录访问日志
// %e表示logger实例化时候时间,%i表示实例化时候生成的6位随机id,n表示从实例化到当前过了多少毫秒
// 全部定义见formatter.help(方法)
logger.info(`%e|%i|%4m|%60m|%7m|%5n`, [
  'GET',
  'http://www.yourdomain.com/path',
  'success',
]);