try {
      Map<String, String> vars = new HashMap<>();
      vars.put("uuid", attachment.getUuid().toString());
      final ResponseSpec response = getWebClient().get().uri(endpoint, vars).header(HttpHeaders.AUTHORIZATION, jsonWebToken).retrieve();
      try (
        WritableByteChannel channel = Channels.newChannel(new FileOutputStream(localFile));) {
        Mono<Void> writeOperation = DataBufferUtils.write(response.bodyToFlux(DataBuffer.class), channel).map(DataBufferUtils::release).then();
        writeOperation.block();
      }
    } catch (WebClientResponseException e) {
      logger.warn("Download attachment returned with status code {}", e.getStatusCode());
      logger.debug("Call failed with exception : ", e);
      if (logger.isDebugEnabled()) {
        logger.debug("Response was [{}]", e.getResponseBodyAsString());
      }
      throw new IOException("Failed to download attachment : " + e.getMessage());
    }