Function fetchWithAuth

frontend/lib/auth.ts:50–76

(url: string, options: RequestInit = {})

 * Authorization is handled automatically via HttpOnly cookies + server.js proxy.
 */
export const fetchWithAuth = async (url: string, options: RequestInit = {}) => {
  // Frontend pre-check: detect session expiry without hitting backend
  if (typeof window !== "undefined") {
    if (
      !authFlowState.isExplicitLogoutInProgress() &&
      hasAuthCookies() &&
      !checkSessionValid()
    ) {
      handleSessionExpired();
      throw new ApiError(
        STATUS_CODES.TOKEN_EXPIRED,
        "Login expired, please login again"
      );
    }
  }

  const isFormData = options.body instanceof FormData;
  const headers = {
    ...(isFormData ? {} : { "Content-Type": "application/json" }),
    ...options.headers,
  };

  return fetchWithErrorHandling(url, {
    ...options,
    headers,
  });
};

/**
 * Get common headers for API requests.