Introduction to Reliable Logger

Reliable Logger is an advanced logging library designed to offer flexible, high-performance logging solutions for modern software applications. With numerous logging levels, output configurations, and seamless integration capabilities, Reliable Logger ensures that developers can perform detailed monitoring and troubleshooting.

Core API Examples

Basic Logger Initialization

 const Logger = require('reliable-logger'); const logger = new Logger(); 

Logging Messages at Different Levels

 logger.debug('Debugging information'); logger.info('Informational message'); logger.warn('Warning message'); logger.error('Error message'); logger.fatal('Fatal error'); 

Configuring Logger Output

 const logger = new Logger({
    output: 'console',
    level: 'info'
});
logger.info('This will be logged to the console'); 

Logging to a File

 const logger = new Logger({
    output: {
        type: 'file',
        filename: 'app.log'
    },
    level: 'error'
});
logger.error('This will be logged to a file'); 

Formatting Log Messages

 const logger = new Logger({
    format: (level, message) => `${new Date().toISOString()} [${level.toUpperCase()}]: ${message}`
});
logger.info('Formatted log message'); 

Advanced Logging Scenarios

Asynchronous Logging

 async function processRequest(request) {
    await logger.asyncLog('Request received');
    // Process request
    await logger.asyncLog('Request processed');
} 

Logging with Metadata

 logger.info('User login', { userId: 123, ipAddress: '192.168.0.1' }); 

Conditional Logging

 const logger = new Logger({
    shouldLog: (level, message) => level !== 'debug'
});
logger.debug('This will not be logged'); logger.info('This will be logged'); 

Integrating with Express.js

 const express = require('express'); const Logger = require('reliable-logger'); const logger = new Logger();
const app = express();
app.use((req, res, next) => {
    logger.info(`Request method: ${req.method}, Request URL: ${req.url}`);
    next();
});
app.get('/', (req, res) => {
    res.send('Hello, World!');
});
app.listen(3000, () => {
    logger.info('Server is running on port 3000');
}); 

The above examples demonstrate the power and flexibility of Reliable Logger in handling various logging needs with ease. Harness the power of Reliable Logger to enhance your application’s logging mechanism, making debugging and monitoring significantly more effective.

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