Function warnOncePerSession

server/src/middleware/auth.ts:49–63

Log at warn the first time a stale session is seen; demote repeats to debug.

(
  cacheKey: string,
  fields: Record<string, unknown>,
  message: string,
  suppressedMessage: string,
)

/** Log at warn the first time a stale session is seen; demote repeats to debug. */
function warnOncePerSession(
  cacheKey: string,
  fields: Record<string, unknown>,
  message: string,
  suppressedMessage: string,
): void {
  const now = Date.now();
  const firstSeen = authFailureLog.get(cacheKey);
  if (!firstSeen || now - firstSeen > AUTH_FAILURE_LOG_SUPPRESS_MS) {
    authFailureLog.set(cacheKey, now);
    logger.warn(fields, message);
  } else {
    logger.debug(fields, suppressedMessage);
  }
}

// Clean up expired cache entries periodically (every 5 minutes)
setInterval(() => {