throwValidationError(messages -> messages.addErrorsInvalidHeaderForRequestFile(GLOBAL, msg), () -> asListHtml(this::saveToken));
        } else {
            try (final CurlResponse response = curlRequest.body(buf.toString()).execute()) {
                final File tempFile = ComponentUtil.getSystemHelper().createTempFile("esreq_", ".json");
                try (final InputStream in = response.getContentAsStream()) {