ashish_logger-middleware

A Winston-based logger middleware for Node.js applications with console-only logging support.

Features

• Console-only logging (no file storage)
• Colorized output for better readability
• Request logging middleware for Express
• Warning logger for deprecation notices and resource limits
• Error logging middleware
• Timestamp-based logging
• JSON metadata support

Installation

npm install ashish_logger-middleware

Usage

const express = require('express');
const { requestLogger, errorLogger, warningLogger, logger } = require('ashish_logger-middleware');

const app = express();

// Use request logger middleware
app.use(requestLogger);

// Your routes here
app.get('/', (req, res) => {
  logger.info('Home route accessed');
  res.send('Hello World');
});

// Example of using warning logger
warningLogger({
  message: "API version 1 is deprecated",
  code: "DEPRECATED_API",
  details: { 
    version: "1.0", 
    newVersion: "2.0" 
  }
});

// Use error logger middleware (should be last)
app.use(errorLogger);

app.listen(3000, () => {
  logger.info('Server started on port 3000');
});

Warning Logger

The warning logger is designed for logging warnings such as:

• Deprecated API versions
• Resource usage limits
• Performance warnings
• Configuration issues

warningLogger({
  message: "Your warning message",  // Required: Warning message
  code: "WARNING_CODE",            // Optional: Warning code identifier
  details: {                       // Optional: Additional warning details
    // Any relevant warning details
  }
});

Log Format

Logs will be displayed in the console with the following format:

[timestamp] level: message {additional metadata}

License

ISC