Function getHashQueryParams

src/core/utils.ts:21–83

(replaceUrl = false)

};

export function getHashQueryParams(replaceUrl = false): HashQueryParamResult {
  const result: HashQueryParamResult = {};

  const queryUrlParams = new URLSearchParams(window.location.search.slice(1));
  queryUrlParams.forEach((value: string, key: string) => {
    if (key !== "b64Params") {
      result[key as keyof HashQueryParamResult] = value;
    }
  });
  const queryResult = queryUrlParams.get("b64Params");
  if (queryResult) {
    try {
      const queryParams = JSON.parse(decodeBase64Url(queryResult));
      Object.keys(queryParams).forEach((key: string) => {
        result[key as keyof HashQueryParamResult] = queryParams[key];
      });
    } catch (error) {
      log.error(error);
    }
  }

  const hashUrlParams = new URLSearchParams(window.location.hash.substring(1));
  hashUrlParams.forEach((value: string, key: string) => {
    if (key !== "b64Params") {
      result[key as keyof HashQueryParamResult] = value;
    }
  });

  const hashResult = hashUrlParams.get("b64Params");
  if (hashResult) {
    try {
      const hashParams = JSON.parse(decodeBase64Url(hashResult));
      Object.keys(hashParams).forEach((key: string) => {
        result[key as keyof HashQueryParamResult] = hashParams[key];
      });
    } catch (error) {
      log.error(error);
    }
  }

  if (replaceUrl) {
    const cleanUrl = new URL(window.location.origin + window.location.pathname);
    // https://dapp.com/#b64Params=asacsdnvdfv&state=sldjvndfkjvn&dappValue=sdjvndf
    // NB: `params.size !== 0` evaluates to true even if `.size` isn't implemented and returns `undefined`, like in Safari <17 and Chrome <113.
    if (queryUrlParams.size !== 0) {
      queryUrlParams.delete("error");
      queryUrlParams.delete("state");
      queryUrlParams.delete("b64Params");
      queryUrlParams.delete("sessionNamespace");
      cleanUrl.search = queryUrlParams.toString();
    }
    if (hashUrlParams.size !== 0) {
      hashUrlParams.delete("error");
      hashUrlParams.delete("state");
      hashUrlParams.delete("b64Params");
      hashUrlParams.delete("sessionNamespace");
      cleanUrl.hash = hashUrlParams.toString();
    }