Logger

A flexible and configurable logging utility for the Ping Identity JavaScript SDK.

Features

• Multiple log levels (error, warn, info, debug, none)
• Ability to change log level at runtime
• Support for multiple arguments in log messages
• TypeScript support with proper type definitions

Installation

npm install @ping-identity/effects-logger

Usage

import { logger } from '@ping-identity/effects-logger';

// Initialize the logger with a specific log level
const log = logger({ level: 'info' });

// Basic usage
log.info('Application started');
log.error('An error occurred:', new Error('Something went wrong'));

// Multiple arguments
log.debug('User data:', { id: '123', name: 'John Doe' });

// Change log level at runtime
log.changeLevel('debug'); // Enable debug logs
log.debug('Debug information is now visible');

log.changeLevel('none'); // Disable all logs
log.error('This error will not be logged');

Log Levels

The logger supports the following log levels (in order of severity):

1. error - Critical errors that may cause the application to fail
2. warn - Warnings that don't interrupt application flow but require attention
3. info - General information about application flow
4. debug - Detailed information for debugging purposes
5. none - No logs will be output

When a log level is set, only messages of that level or higher severity will be displayed.

API Reference

logger({ level })

Initializes a new logger instance.

Parameters:

• level: The initial log level ('error', 'warn', 'info', 'debug', or 'none')

Returns: A logger instance with the following methods:

• error(...args): Log an error message
• warn(...args): Log a warning message
• info(...args): Log an informational message
• debug(...args): Log a debug message
• changeLevel(level): Change the current log level

Building

Run nx build logger to build the library.

Running unit tests

Run nx test @forgerock/sdk-logger to execute the unit tests via Vitest.