InvoiceExpress MCP

import winston from 'winston'; const { combine, timestamp, errors, json, printf, colorize } = winston.format; const logLevel = process.env['LOG_LEVEL'] ?? 'info'; const isProduction = process.env['NODE_ENV'] === 'production'; const devFormat = printf(({ level, message, timestamp: ts, ...metadata }) => { let msg = `${ts} [${level}]: ${message}`; if (Object.keys(metadata).length > 0) { msg += ` ${JSON.stringify(metadata)}`; } return msg; }); const logger = winston.createLogger({ level: logLevel, format: combine( errors({ stack: true }), timestamp(), isProduction ? json() : combine(colorize(), devFormat), ), transports: [ new winston.transports.Console({ stderrLevels: ['error', 'warn'], silent: process.env['MCP_MODE'] === 'true', }), ], exitOnError: false, }); export function createLogger(context: string): winston.Logger { return logger.child({ context }); } export default logger;