Perplexity MCP Server

/** * Logger utility for the Perplexity MCP Server * * This module provides a configurable logger that can output to different transports. */ /** * Creates a logger instance with the specified configuration * @param {Object} options Logger configuration options * @param {string} options.logLevel Log level (debug, info, warn, error) * @param {string} options.outputTransport Output transport (console, sse) * @returns {Object} Logger instance */ export function getLogger({ logLevel = 'info', outputTransport = 'console' }) { // Log levels and their numeric values const LOG_LEVELS = { debug: 0, info: 1, warn: 2, error: 3, }; // Current log level const currentLevel = LOG_LEVELS[logLevel] || LOG_LEVELS.info; // Create logger functions for each level const logger = {}; Object.keys(LOG_LEVELS).forEach((level) => { logger[level] = (message) => { // Only log if the message's level is >= the current level if (LOG_LEVELS[level] >= currentLevel) { const timestamp = new Date().toISOString(); const formattedMessage = `[${timestamp}] [${level.toUpperCase()}] ${message}`; if (outputTransport === 'sse') { // For SSE, we just log to console for now // In a real implementation, this would send to SSE clients console[level === 'error' ? 'error' : 'log'](formattedMessage); } else { // Default to console console[level === 'error' ? 'error' : 'log'](formattedMessage); } } }; }); return logger; }