Function useBaseURL

react/src/useBaseURL.ts:10–41

()

 * the URL is wrong, an error is thrown using the store's handler
 */
export const useBaseURL = (): [string, (serverUrl: string) => void] => {
  // Localstorage for cross-session persistence of JSON object
  const store = useStore();
  const [serverUrlJson, setServerUrlJson] = useLocalStorage<string | null>(
    'serverUrl',
    store.getServerUrl(),
  );
  const [baseURL, setBaseURL] = useState<string | undefined>(
    window?.location.origin,
  );

  useEffect(() => {
    if (baseURL !== null) {
      if (isValidURL(serverUrlJson)) {
        setBaseURL(serverUrlJson);
      } else {
        store.handleError(
          new Error(
            `Invalid base URL: ${serverUrlJson}, defaulting to atomicdata.dev`,
          ),
        );
        setBaseURL('https://atomicdata.dev');
      }
    }
  }, [serverUrlJson]);

  useEffect(() => {
    store.setServerUrl(baseURL);
  }, [baseURL]);

  return [baseURL, setServerUrlJson];
};