Introduction to Konami Logger

The konami-logger is a versatile and powerful logging library designed to simplify logging in web applications. It offers a range of APIs that make it easy to record, filter, and manage logs effectively, ensuring that developers can keep track of application behavior and diagnose issues quickly.

Key Features and APIs of Konami Logger

Below are some essential APIs provided by konami-logger with code snippets to demonstrate their usage:

Basic Setup

  const KonamiLogger = require('konami-logger');
  const logger = new KonamiLogger();

Logging Messages

  logger.info('This is an info message');
  logger.warn('This is a warning message');
  logger.error('This is an error message');

Custom Log Levels

  logger.addLevel('debug', 1500);
  logger.debug('This is a debug message with custom level');

Log Filtering

  logger.setLogLevel('warn');
  logger.info('This message will not be logged');
  logger.warn('This message will be logged');

Output Formatting

  logger.setFormatter((level, message) => {
    return `${new Date().toISOString()} - ${level.toUpperCase()}: ${message}`;
  });
  logger.info('This is an info message with custom format');

Asynchronous Logging

  logger.asyncLog('info', 'This is an asynchronous log message');

Log to External Service

  logger.setTransport((logEntry) => {
    sendLogToServer(logEntry); // A function that sends log entry to external service
  });
  logger.info('This message will be sent to the external service');

App Example

Here’s a simple application example using the introduced APIs to demonstrate the konami-logger’s functionality:

  const KonamiLogger = require('konami-logger');

  // Initialize the logger
  const logger = new KonamiLogger();
  logger.setLogLevel('debug');
  logger.setFormatter((level, message) => {
    return `${new Date().toISOString()} - ${level.toUpperCase()}: ${message}`;
  });

  // Simulate application behavior
  function simulateApp() {
    logger.info('Application started');
    logger.debug('Initializing modules');
    try {
      // Simulate a function call
      doSomething();
    } catch (error) {
      logger.error('An error occurred: ' + error.message);
    }
    logger.warn('This is a warning message');
  }

  function doSomething() {
    throw new Error('Simulated error');
  }

  // Start the simulation
  simulateApp();

By incorporating konami-logger into your web application, you can ensure that all significant events are logged, monitored, and diagnosed efficiently.

Hash: 214c553d9bbf92709e20fc4c5aae23c439b101deaa5a4d6959316bfc35debdd0