@Execute
    public JsonResponse<ApiResult> docs(final SearchBody body) {
        validateApi(body, messages -> {});

        if (StringUtil.isBlank(body.q)) {
            // query matches on all documents.
            body.q = Constants.MATCHES_ALL_QUERY;
        }

        final SearchRenderData renderData = new SearchRenderData();
        body.initialize();
        try {