Add API endpoint to retrieve document indexing pipeline status

• GET /pipeline_status endpoint added
• Returns current pipeline processing state

lightrag/api/routers/document_routes.py

@@ -653,6 +653,35 @@ def create_document_routes(
             logging.error(traceback.format_exc())
             raise HTTPException(status_code=500, detail=str(e))
 
+    @router.get("/pipeline_status", dependencies=[Depends(optional_api_key)])
+    async def get_pipeline_status():
+        """
+        Get the current status of the document indexing pipeline.
+        
+        This endpoint returns information about the current state of the document processing pipeline,
+        including whether it's busy, the current job name, when it started, how many documents
+        are being processed, how many batches there are, and which batch is currently being processed.
+        
+        Returns:
+            dict: A dictionary containing the pipeline status information
+        """
+        try:
+            from lightrag.kg.shared_storage import get_namespace_data
+            pipeline_status = get_namespace_data("pipeline_status")
+            
+            # Convert to regular dict if it's a Manager.dict
+            status_dict = dict(pipeline_status)
+            
+            # Format the job_start time if it exists
+            if status_dict.get("job_start"):
+                status_dict["job_start"] = str(status_dict["job_start"])
+                
+            return status_dict
+        except Exception as e:
+            logging.error(f"Error getting pipeline status: {str(e)}")
+            logging.error(traceback.format_exc())
+            raise HTTPException(status_code=500, detail=str(e))
+
     @router.get("", dependencies=[Depends(optional_api_key)])
     async def documents() -> DocsStatusesResponse:
         """