mcp-server-logzio/dist/utils/logger.js

Model Context Protocol server for Logz.io log management platform

import pino from 'pino';
/**
 * Detect if we're running as an MCP server
 * MCP servers should not output human-readable logs to stdout as it interferes with the JSON protocol
 */
function isMcpMode() {
    // Check if we're being run directly (not as MCP server)
    const isDirectRun = process.argv.includes('--help') || process.argv.includes('-h');
    // Check if stdio is being used for MCP communication
    const isStdioMcp = !process.stdout.isTTY;
    return !isDirectRun && isStdioMcp;
}
/**
 * Configure the base logger instance
 */
function createLogger() {
    const level = process.env.LOG_LEVEL?.toLowerCase() || 'info';
    const mcpMode = isMcpMode();
    if (mcpMode) {
        // In MCP mode, use minimal JSON logging to stderr only
        return pino({
            level: 'error', // Only log errors in MCP mode
        }, pino.destination({ dest: 2 })); // Log to stderr instead of stdout
    }
    // In normal mode, use pretty printing
    return pino({
        level,
        transport: {
            target: 'pino-pretty',
            options: {
                colorize: true,
                translateTime: 'HH:MM:ss Z',
                ignore: 'pid,hostname',
            },
        },
        base: {
            // Remove default fields we don't need
            pid: undefined,
            hostname: undefined,
        },
    });
}
/**
 * Base logger instance
 */
const baseLogger = createLogger();
/**
 * Get a child logger for a specific component
 */
export function getLogger(name) {
    return baseLogger.child({ component: name });
}
/**
 * Export the base logger for direct use
 */
export const logger = baseLogger;
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