Spider MCP

import winston from 'winston'; // Create log format const logFormat = winston.format.combine( winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }), winston.format.errors({ stack: true }), winston.format.json() ); // Create console format const consoleFormat = winston.format.combine( winston.format.colorize(), winston.format.timestamp({ format: 'HH:mm:ss' }), winston.format.printf(({ timestamp, level, message, ...meta }) => { let metaStr = ''; if (Object.keys(meta).length > 0) { try { // Safely serialize meta object, avoid circular references metaStr = JSON.stringify(meta, (key, value) => { // Filter out properties that may cause circular references if (key === 'socket' || key === 'parser' || key === 'response' || key === 'request' || key === 'config') { return '[Circular Reference]'; } return value; }, 2); } catch (err) { // If serialization fails, just log basic info metaStr = `[Meta serialization failed: ${err.message}]`; } } return `${timestamp} [${level}]: ${message} ${metaStr}`; }) ); // Create logger instance const createLogger = () => { const transports = [ // Console output new winston.transports.Console({ format: consoleFormat }) ]; // Try to add file output, fallback to console only if fails try { // Ensure logs directory exists const fs = require('fs'); const path = require('path'); const logsDir = path.join(process.cwd(), 'logs'); if (!fs.existsSync(logsDir)) { fs.mkdirSync(logsDir, { recursive: true }); } // File output - error logs transports.push(new winston.transports.File({ filename: path.join(logsDir, 'error.log'), level: 'error', maxsize: 5242880, // 5MB maxFiles: 5 })); // File output - all logs transports.push(new winston.transports.File({ filename: path.join(logsDir, 'combined.log'), maxsize: 5242880, // 5MB maxFiles: 5 })); } catch (error) { console.warn('Warning: Could not create log files, using console only:', error.message); } return winston.createLogger({ level: process.env.LOG_LEVEL || 'info', format: logFormat, transports }); }; export const logger = createLogger(); // Extra config for development environment if (process.env.NODE_ENV === 'development') { logger.add(new winston.transports.Console({ format: winston.format.simple() })); } export default logger;