logger.ts•1.07 kB
/**
* Logging utility for MCP server
* Uses console.error to output log messages to stderr instead of stdout
* (MCP protocol sends JSON-RPC messages via stdout, so logging is done via stderr)
*/
export class Logger {
/**
* Info log message
* @param message Log message
* @param args Additional arguments
*/
static info(message: string, ...args: unknown[]) {
console.error(`[INFO] ${message}`, ...args);
}
/**
* Error log message
* @param message Log message
* @param args Additional arguments
*/
static error(message: string, ...args: unknown[]) {
console.error(`[ERROR] ${message}`, ...args);
}
/**
* Debug log message
* @param message Log message
* @param args Additional arguments
*/
static debug(message: string, ...args: unknown[]) {
console.error(`[DEBUG] ${message}`, ...args);
}
/**
* Warning log message
* @param message Log message
* @param args Additional arguments
*/
static warn(message: string, ...args: unknown[]) {
console.error(`[WARN] ${message}`, ...args);
}
}