diff --git a/api/core/app/apps/pipeline/pipeline_generator.py b/api/core/app/apps/pipeline/pipeline_generator.py
index ec565fe2e5..e726ad4841 100644
--- a/api/core/app/apps/pipeline/pipeline_generator.py
+++ b/api/core/app/apps/pipeline/pipeline_generator.py
@@ -32,6 +32,7 @@ from core.repositories.sqlalchemy_workflow_execution_repository import SQLAlchem
 from core.workflow.repositories.workflow_execution_repository import WorkflowExecutionRepository
 from core.workflow.repositories.workflow_node_execution_repository import WorkflowNodeExecutionRepository
 from extensions.ext_database import db
+from libs.flask_utils import preserve_flask_contexts
 from models import Account, EndUser, Workflow, WorkflowNodeExecutionTriggeredFrom
 from models.dataset import Document, DocumentPipelineExecutionLog, Pipeline
 from models.enums import WorkflowRunTriggeredFrom
@@ -209,25 +210,22 @@ class PipelineGenerator(BaseAppGenerator):
                 # run in child thread
                 context = contextvars.copy_context()
 
-                @copy_current_request_context
-                def worker_with_context():
-                    # Run the worker within the copied context
-                    return context.run(
-                        self._generate,
-                        flask_app=current_app._get_current_object(),  # type: ignore
-                        context=context,
-                        pipeline=pipeline,
-                        workflow_id=workflow.id,
-                        user=user,
-                        application_generate_entity=application_generate_entity,
-                        invoke_from=invoke_from,
-                        workflow_execution_repository=workflow_execution_repository,
-                        workflow_node_execution_repository=workflow_node_execution_repository,
-                        streaming=streaming,
-                        workflow_thread_pool_id=workflow_thread_pool_id,
-                    )
-
-                worker_thread = threading.Thread(target=worker_with_context)
+                worker_thread = threading.Thread(
+                    target=self._generate,
+                    kwargs={
+                        "flask_app": current_app._get_current_object(),  # type: ignore
+                        "context": context,
+                        "pipeline": pipeline,
+                        "workflow_id": workflow.id,
+                        "user": user,
+                        "application_generate_entity": application_generate_entity,
+                        "invoke_from": invoke_from,
+                        "workflow_execution_repository": workflow_execution_repository,
+                        "workflow_node_execution_repository": workflow_node_execution_repository,
+                        "streaming": streaming,
+                        "workflow_thread_pool_id": workflow_thread_pool_id,
+                    },
+                )
 
                 worker_thread.start()
         # return batch, dataset, documents
@@ -282,23 +280,7 @@ class PipelineGenerator(BaseAppGenerator):
         :param streaming: is stream
         :param workflow_thread_pool_id: workflow thread pool id
         """
-        print("jin ru la 1")
-        for var, val in context.items():
-            var.set(val)
-
-        # FIXME(-LAN-): Save current user before entering new app context
-        from flask import g
-
-        saved_user = None
-        if has_request_context() and hasattr(g, "_login_user"):
-            saved_user = g._login_user
-        with flask_app.app_context():
-            # Restore user in new app context
-            print("jin ru la 2")
-            if saved_user is not None:
-                from flask import g
-
-                g._login_user = saved_user
+        with preserve_flask_contexts(flask_app, context_vars=context):
             # init queue manager
             workflow = db.session.query(Workflow).filter(Workflow.id == workflow_id).first()
             if not workflow:
@@ -311,20 +293,17 @@ class PipelineGenerator(BaseAppGenerator):
             )
             context = contextvars.copy_context()
 
-            @copy_current_request_context
-            def worker_with_context():
-                # Run the worker within the copied context
-                return context.run(
-                    self._generate_worker,
-                    flask_app=current_app._get_current_object(),  # type: ignore
-                    context=context,
-                    queue_manager=queue_manager,
-                    application_generate_entity=application_generate_entity,
-                    workflow_thread_pool_id=workflow_thread_pool_id,
-                )
-
             # new thread
-            worker_thread = threading.Thread(target=worker_with_context)
+            worker_thread = threading.Thread(
+                target=self._generate_worker,
+                kwargs={
+                    "flask_app": current_app._get_current_object(),  # type: ignore
+                    "context": context,
+                    "queue_manager": queue_manager,
+                    "application_generate_entity": application_generate_entity,
+                    "workflow_thread_pool_id": workflow_thread_pool_id,
+                },
+            )
 
             worker_thread.start()
 
@@ -521,20 +500,9 @@ class PipelineGenerator(BaseAppGenerator):
         :param workflow_thread_pool_id: workflow thread pool id
         :return:
         """
-        print("jin ru la 3")
-        for var, val in context.items():
-            var.set(val)
-        from flask import g
 
-        saved_user = None
-        if has_request_context() and hasattr(g, "_login_user"):
-            saved_user = g._login_user
-        with flask_app.app_context():
+        with preserve_flask_contexts(flask_app, context_vars=context):
             try:
-                if saved_user is not None:
-                    from flask import g
-
-                    g._login_user = saved_user
                 # workflow app
                 runner = PipelineRunner(
                     application_generate_entity=application_generate_entity,