Function refreshAccessToken

frontend/src/lib/authenticatedFetch.ts:14–57

()

 * @returns Promise that resolves to the new token or null if refresh failed
 */
export const refreshAccessToken = async (): Promise<string | null> => {
  // If a refresh is already in progress, return that promise
  if (isRefreshing && refreshPromise) {
    return refreshPromise;
  }

  isRefreshing = true;
  refreshPromise = (async () => {
    try {
      const refreshToken = localStorage.getItem(LocalStore.refreshToken);
      if (!refreshToken) {
        return null;
      }

      // Use Apollo client to refresh the token
      const result = await client.mutate({
        mutation: REFRESH_TOKEN_MUTATION,
        variables: { refreshToken },
      });

      if (result.data?.refreshToken?.accessToken) {
        const newAccessToken = result.data.refreshToken.accessToken;
        const newRefreshToken =
          result.data.refreshToken.refreshToken || refreshToken;

        localStorage.setItem(LocalStore.accessToken, newAccessToken);
        localStorage.setItem(LocalStore.refreshToken, newRefreshToken);

        console.log('Token refreshed successfully');
        return newAccessToken;
      }

      return null;
    } catch (error) {
      console.error('Error refreshing token:', error);
      return null;
    } finally {
      isRefreshing = false;
      refreshPromise = null;
    }
  })();

  return refreshPromise;
};

/**
 * Fetch wrapper that handles authentication and token refresh