fetchAddressBalances.js

async function fetchAddressBalances() {
    if (isFederatedAddress(address)) {
      let xlmAddress = await fetchXLMAddressFromFederation(address);
      if (xlmAddress.length > 0) {
        let result = await fetchXLMAddressBalances(xlmAddress);
        if (Array.isArray(result)) {
          onButtonClick(result);
        } else {
          onError(result);
        }
      } else {
        onError("Not Found");
      }
    } else {
      let result = await fetchXLMAddressBalances(address);
      if (Array.isArray(result)) {
        onButtonClick(result);
      } else {
        onError(result);
      }
    }
  }