@kpritam/gremlin-mcp/dist/logger.js

A Gremlin MCP server that allows for fetching status, schema, and querying using Gremlin for any Gremlin-compatible graph database (TypeScript implementation).

/**
 * Logging configuration using Winston.
 */
import winston from 'winston';
import { config } from './config.js';
/**
 * Create a Winston logger with appropriate formatting and transports.
 *
 * @param logLevel - The log level to use
 * @returns Configured Winston logger
 */
function createLogger(logLevel) {
    const isVerbose = ['debug', 'info', 'warn'].includes(logLevel);
    const baseFormat = winston.format.combine(winston.format.timestamp(), winston.format.errors({ stack: true }));
    const consoleFormat = isVerbose
        ? winston.format.combine(baseFormat, winston.format.colorize(), winston.format.printf(({ timestamp, level, message, ...meta }) => {
            let log = `${timestamp} [${level}]: ${message}`;
            if (Object.keys(meta).length > 0) {
                log += ` ${JSON.stringify(meta, null, 2)}`;
            }
            return log;
        }))
        : winston.format.combine(winston.format.colorize(), winston.format.simple());
    return winston.createLogger({
        level: logLevel,
        format: winston.format.combine(baseFormat, winston.format.json()),
        defaultMeta: { service: 'gremlin-mcp' },
        transports: [
            new winston.transports.Console({
                stderrLevels: ['error', 'warn', 'info', 'debug'],
                format: consoleFormat,
            }),
        ],
    });
}
/**
 * Configure winston logger with appropriate formatting and transports.
 */
export const logger = createLogger(config.logLevel);
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