fix backend config

Author: yaozheng-fang

veadk/knowledgebase/knowledgebase.py

@@ -71,7 +71,7 @@ class KnowledgeBase(BaseModel):
     Default is `local`."""
 
     backend_config: dict = Field(default_factory=dict)
-    """Deprecated. Configuration for the backend"""
+    """Configuration for the backend"""
 
     top_k: int = 10
     """Number of top similar documents to retrieve during search"""
@@ -89,6 +89,11 @@ def model_post_init(self, __context: Any) -> None:
             )
             return
 
+        # Once user define backend config, use it directly
+        if self.backend_config:
+            self._backend = _get_backend_cls(self.backend)(**self.backend_config)
+            return
+
         self.index = self.index or self.app_name
         if not self.index:
             raise ValueError("Either `index` or `app_name` must be provided.")

veadk/memory/long_term_memory.py

@@ -80,7 +80,7 @@ class LongTermMemory(BaseMemoryService, BaseModel):
     """Long term memory backend type"""
 
     backend_config: dict = Field(default_factory=dict)
-    """Deprecated. Long term memory backend configuration"""
+    """Long term memory backend configuration"""
 
     top_k: int = 5
     """Number of top similar documents to retrieve during search."""
@@ -101,6 +101,11 @@ def model_post_init(self, __context: Any) -> None:
             )
             return
 
+        # Once user define backend config, use it directly
+        if self.backend_config:
+            self._backend = _get_backend_cls(self.backend)(**self.backend_config)
+            return
+
         # Check index
         self.index = self.index or self.app_name
         if not self.index: