added hf token

backend/hf_logging.py

@@ -2,6 +2,7 @@
 
 import json
 import io
+import os
 from datetime import datetime
 from typing import Dict, Any
 
@@ -9,8 +10,9 @@ from huggingface_hub import HfApi, CommitOperationAdd
 
 from .config import RATINGS_DATASET_ID
 
-# Hugging Face API for logging
-hf_api = HfApi()
+# Hugging Face API for logging - get token from environment or use default auth
+hf_token = os.getenv("HF_TOKEN") or os.getenv("HUGGING_FACE_HUB_TOKEN")
+hf_api = HfApi(token=hf_token)
 
 
 def push_session_to_hub(session_id: str, export_data: Dict[str, Any]):
@@ -53,16 +55,27 @@ def push_session_to_hub(session_id: str, export_data: Dict[str, Any]):
     path_in_repo = f"sessions/{session_id}.json"
 
     # Create a git commit adding/updating that file
-    hf_api.create_commit(
-        repo_id=RATINGS_DATASET_ID,
-        repo_type="dataset",
-        operations=[
-            CommitOperationAdd(
-                path_in_repo=path_in_repo,
-                path_or_fileobj=fileobj,
-            )
-        ],
-        commit_message=f"Add MOS ratings for session {session_id}",
-    )
+    try:
+        hf_api.create_commit(
+            repo_id=RATINGS_DATASET_ID,
+            repo_type="dataset",
+            operations=[
+                CommitOperationAdd(
+                    path_in_repo=path_in_repo,
+                    path_or_fileobj=fileobj,
+                )
+            ],
+            commit_message=f"Add MOS ratings for session {session_id}",
+            token=hf_token,  # Explicitly pass token
+        )
+    except Exception as e:
+        print(f"[ERROR] Failed to push to Hub: {e}")
+        # If no token or authentication fails, save locally as fallback
+        fallback_path = f"./session_exports/{session_id}.json"
+        os.makedirs("./session_exports", exist_ok=True)
+        with open(fallback_path, "w") as f:
+            json.dump(export_data, f, indent=2, default=str, ensure_ascii=False)
+        print(f"[INFO] Saved session data locally to {fallback_path}")
+        return
 
     print(f"[LOG] Pushed session {session_id} to {RATINGS_DATASET_ID}/{path_in_repo}")