api http return error (#3941)

api http return error when content is not found


- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Co-authored-by: Kevin Hu <[email protected]>

api/db/services/conversation_service.py

@@ -58,7 +58,7 @@ def structure_answer(conv, ans, message_id, session_id):
 
     chunk_list = [{
             "id": chunk["chunk_id"],
-            "content": chunk["content"],
+            "content": chunk.get("content") if chunk.get("content") else chunk.get("content_with_content"),
             "document_id": chunk["doc_id"],
             "document_name": chunk["docnm_kwd"],
             "dataset_id": chunk["kb_id"],