SwaggerMcp

import { appConfig } from './config'; type LogLevel = 'debug' | 'info' | 'warn' | 'error'; const LOG_LEVELS: Record<LogLevel, number> = { debug: 0, info: 1, warn: 2, error: 3, }; class Logger { private level: number; private enableRequestLogging: boolean; constructor() { this.level = LOG_LEVELS[appConfig.options.logLevel]; this.enableRequestLogging = appConfig.options.enableRequestLogging; } private log(level: LogLevel, message: string, ...args: any[]) { if (LOG_LEVELS[level] >= this.level) { const timestamp = new Date().toISOString(); const prefix = `[${timestamp}] [${level.toUpperCase()}]`; // Write all logs to stderr to avoid interfering with MCP protocol on stdout const logMessage = `${prefix} ${message}${args.length > 0 ? ' ' + args.map(arg => typeof arg === 'object' ? JSON.stringify(arg) : String(arg) ).join(' ') : ''}\n`; process.stderr.write(logMessage); } } debug(message: string, ...args: any[]) { this.log('debug', message, ...args); } info(message: string, ...args: any[]) { this.log('info', message, ...args); } warn(message: string, ...args: any[]) { this.log('warn', message, ...args); } error(message: string, ...args: any[]) { this.log('error', message, ...args); } request(method: string, url: string, data?: any) { if (this.enableRequestLogging) { this.debug(`Request: ${method} ${url}`, data ? { data } : undefined); } } response(method: string, url: string, status: number, data?: any) { if (this.enableRequestLogging) { this.debug(`Response: ${method} ${url} - ${status}`, data ? { data } : undefined); } } } export const logger = new Logger();