@emit-ia/gdrive-mcp-server/dist/logger.js

Google Drive MCP Server - Model Context Protocol server for Google Drive and Gmail APIs

/**
 * Logger utility for Google Drive & Gmail MCP Server
 *
 * All log messages are sent to stderr to avoid interfering with the MCP JSON protocol
 * on stdout. This ensures proper communication with MCP clients like Claude Desktop.
 *
 * Provides different log levels including specialized loggers for Gmail and Drive operations.
 */
export class Logger {
    /**
     * Internal method to write log messages to stderr
     *
     * @param level - Log level (INFO, WARN, ERROR, etc.)
     * @param message - Primary log message
     * @param args - Additional arguments to log
     */
    static write(level, message, ...args) {
        const timestamp = new Date().toISOString();
        const logMessage = `[${timestamp}] [${level}] ${message}`;
        if (args.length > 0) {
            process.stderr.write(logMessage + ' ' + args.map(arg => typeof arg === 'object' ? JSON.stringify(arg) : String(arg)).join(' ') + '\n');
        }
        else {
            process.stderr.write(logMessage + '\n');
        }
    }
    /** Log informational messages */
    static info(message, ...args) {
        this.write('INFO', message, ...args);
    }
    /** Log warning messages */
    static warn(message, ...args) {
        this.write('WARN', message, ...args);
    }
    /** Log error messages */
    static error(message, ...args) {
        this.write('ERROR', message, ...args);
    }
    /** Log debug messages (only when DEBUG=true environment variable is set) */
    static debug(message, ...args) {
        if (process.env.DEBUG === 'true') {
            this.write('DEBUG', message, ...args);
        }
    }
    /** Log configuration-related messages */
    static config(message, ...args) {
        this.write('CONFIG', message, ...args);
    }
    /** Log Gmail-specific messages (token management, operations) */
    static gmail(message, ...args) {
        this.write('GMAIL', message, ...args);
    }
    /** Log Google Drive-specific messages */
    static drive(message, ...args) {
        this.write('DRIVE', message, ...args);
    }
}
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