Fix detailed mode output for summary requests (#461)

* Fix detailed mode output for %statistics/%summary

* update changelog

---------

Co-authored-by: Michael Chin <[email protected]>

Author: michaelnchin

ChangeLog.md

@@ -3,6 +3,7 @@
 Starting with v1.31.6, this file will contain a record of major features and updates made in each release of graph-notebook.
 
 ## Upcoming
+- Fixed detailed mode output for graph summary requests ([Link to PR](https://github.com/aws/graph-notebook/pull/461))
 - Added more helpful error messaging for `%statistics`/`%summary` ([Link to PR](https://github.com/aws/graph-notebook/pull/460))
 - Added Neptune Notebook CloudFormation template ([Link to PR](https://github.com/aws/graph-notebook/pull/442))
 

src/graph_notebook/neptune/client.py

@@ -759,9 +759,10 @@ def statistics(self, language: str, summary: bool = False, mode: str = '') -> re
 
         if summary:
             summary_url = url + '/summary'
-            if not data['mode']:
-                data['mode'] = 'basic'
-            req = self._prepare_request('GET', summary_url, data=json.dumps(data), headers=headers)
+            if mode:
+                summary_mode_param = '?mode=' + mode
+                summary_url += summary_mode_param
+            req = self._prepare_request('GET', summary_url, headers=headers)
         else:
             if mode in ['', 'status']:
                 req = self._prepare_request('GET', url, headers=headers)