Introduction to biz-logger

Meet biz-logger, a powerful and efficient logging library designed to supercharge your web and mobile applications. With biz-logger, you gain access to dozens of useful APIs that simplify and enhance the process of logging messages, errors, and other crucial data. In this guide, we’ll explore a range of biz-logger‘s APIs and provide useful code snippets that demonstrate their functionality.

Getting Started with biz-logger

To start using biz-logger, you need to install it via npm:

npm install biz-logger

Basic Logging API

Below we introduce the basic logging functions to log different levels of messages:

const Logger = require('biz-logger');

// Create a new logger instance
const logger = new Logger('App');

// Log an info message
logger.info('This is an info message');

// Log a warning
logger.warn('This is a warning message');

// Log an error
logger.error('This is an error message');

Advanced Logging API

Explore some advanced APIs provided by biz-logger:

// Log a debug message
logger.debug('This is a debug message');

// Log a fatal error
logger.fatal('This is a fatal error message');

// Log with a custom level
logger.log('custom', 'This is a custom level log');

Using Middleware

Integrate biz-logger with Express.js:

const express = require('express');
const app = express();

// Middleware for logging requests
app.use((req, res, next) => {
    logger.info(\`Request received: \${req.method} \${req.url}\`);
    next();
});

app.get('/', (req, res) => {
    res.send('Hello World');
    logger.info('Hello World endpoint hit');
});

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

App Example

Full example of a simple application using biz-logger:

const express = require('express');
const Logger = require('biz-logger');

const app = express();
const logger = new Logger('MyApp');

// Logger Middleware
app.use((req, res, next) => {
  logger.info(\`Received request: \${req.method} \${req.url}\`);
  next();
});

app.get('/', (req, res) => {
  res.send('Welcome to MyApp');
  logger.info('Returned welcome message');
});

app.post('/data', (req, res) => {
  res.send('Data received');
  logger.info('Data endpoint hit');
});

app.use((err, req, res, next) => {
  logger.error(\`Server error: \${err.message}\`);
  res.status(500).send('Server Error');
});

app.listen(4000, () => {
  logger.info('MyApp is running on port 4000');
});

Take advantage of the flexibility and power of biz-logger to maintain robust and readable logs within your applications!

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