feat: add Service API for memory read and modify

api/controllers/service_api/app/chatflow_memory.py

@@ -0,0 +1,57 @@
+from flask_restful import Resource, reqparse
+from sqlalchemy.orm import Session
+
+from controllers.service_api import api
+from controllers.service_api.wraps import FetchUserArg, WhereisUserArg, validate_app_token
+from libs.helper import uuid_value
+from models import db
+from models.chatflow_memory import ChatflowMemoryVariable
+from services.chatflow_memory_service import ChatflowMemoryService
+from services.workflow_service import WorkflowService
+
+
+class MemoryListApi(Resource):
+    @validate_app_token(fetch_user_arg=FetchUserArg(fetch_from=WhereisUserArg.JSON, required=True))
+    def get(self, app_model):
+        parser = reqparse.RequestParser()
+        parser.add_argument("conversation_id", required=False, type=uuid_value, location="args")
+        args = parser.parse_args()
+        conversation_id = args.get("conversation_id")
+
+        result = ChatflowMemoryService.get_persistent_memories(app_model)
+        if conversation_id:
+            result = [*result, *ChatflowMemoryService.get_session_memories(app_model, conversation_id)]
+
+        return result
+
+class MemoryEditApi(Resource):
+    @validate_app_token(fetch_user_arg=FetchUserArg(fetch_from=WhereisUserArg.JSON, required=True))
+    def put(self, app_model):
+        parser = reqparse.RequestParser()
+        parser.add_argument('id', type=str, required=True)
+        parser.add_argument('node_id', type=str, required=False)
+        parser.add_argument('update', type=str, required=True)
+        args = parser.parse_args()
+        workflow = WorkflowService().get_published_workflow(app_model)
+        if not workflow:
+            return {'error': 'Workflow not found'}, 404
+        memory_spec = next((it for it in workflow.memory_blocks if it.id == args['id']), None)
+        if not memory_spec:
+            return {'error': 'Memory not found'}, 404
+        with Session(db.engine) as session:
+            ChatflowMemoryVariable(
+                tenant_id=app_model.tenant_id,
+                app_id=app_model.id,
+                node_id=args['node_id'],
+                memory_id=args['id'],
+                name=memory_spec.name,
+                value=args['update'],
+                scope=memory_spec.scope,
+                term=memory_spec.term,
+            )
+            session.add(memory_spec)
+            session.commit()
+        return '', 204
+
+api.add_resource(MemoryListApi, '/memories')
+api.add_resource(MemoryEditApi, '/memory-edit')