loglib

loglib is a simple and flexible logging library for Node.js applications. It supports various log levels, rolling log files based on size and time, and easy configuration.

Features

• Multiple log levels: Debug, Info, Warning, Error, Critical
• Rolling log files based on size and time
• Easy configuration via JSON or programmatically
• Customizable log configs

Installation

npm install loglib

Usage

Basic Usage

import { Logger, LogConfig, LogLevel } from "loglib";

const logger = new Logger();
await logger.init();

logger.debug("This is a debug message");
logger.info("This is an info message");
logger.warning("This is a warning message");
logger.error("This is an error message");
logger.critical("This is a critical message");

Custom Configuration

import {
  Logger,
  LogConfig,
  LogLevel,
  RollingSizeOptions,
  RollingTimeOptions,
} from "loglib";

const logConfig = new LogConfig()
  .withLogLevel(LogLevel.Info)
  .withFilePrefix("MyAppLog_")
  .withRollingConfig({
    sizeThreshold: RollingSizeOptions.TenMB,
    timeThreshold: RollingTimeOptions.Daily,
  });

const logger = new Logger(logConfig);
await logger.init();

logger.info("This is an info message with custom configuration");

Configuration from JSON File

import { Logger, LogConfig } from "loglib";

const logConfig = LogConfig.fromConfigFile("path/to/config.json");
const logger = new Logger(logConfig);
await logger.init();

logger.info("This is an info message with configuration from JSON file");

Configuration Options

Log Levels

• LogLevel.Debug
• LogLevel.Info
• LogLevel.Warning
• LogLevel.Error
• LogLevel.Critical

Rolling Options

Size Options

• RollingSizeOptions.OneKB
• RollingSizeOptions.FiveKB
• RollingSizeOptions.TenKB
• RollingSizeOptions.TwentyKB
• RollingSizeOptions.FiftyKB
• RollingSizeOptions.HundredKB
• RollingSizeOptions.HalfMB
• RollingSizeOptions.OneMB
• RollingSizeOptions.FiveMB
• RollingSizeOptions.TenMB
• RollingSizeOptions.TwentyMB
• RollingSizeOptions.FiftyMB
• RollingSizeOptions.HundredMB

Time Options

• RollingTimeOptions.Minutely
• RollingTimeOptions.Hourly
• RollingTimeOptions.Daily
• RollingTimeOptions.Weekly
• RollingTimeOptions.Monthly
• RollingTimeOptions.Yearly

License

This project is licensed under the MIT License.