使用mem0ai api实现记忆功能

core/providers/memory/base.py

@@ -0,0 +1,23 @@
+from abc import ABC, abstractmethod
+from config.logger import setup_logging
+
+TAG = __name__
+logger = setup_logging()
+
+class MemoryProviderBase(ABC):
+    def __init__(self, config):
+        self.config = config
+        self.role_id = None
+
+    @abstractmethod
+    async def save_memory(self, msgs):
+        """Save a new memory for specific role and return memory ID"""
+        print("this is base func", msgs)
+
+    @abstractmethod
+    async def query_memory(self, query: str) -> str:
+        """Query memories for specific role based on similarity"""
+        return "please implement query method"
+
+    def set_role_id(self, role_id: str):
+        self.role_id = role_id

core/providers/memory/mem0ai/mem0ai.py

@@ -0,0 +1,49 @@
+from ..base import MemoryProviderBase, logger
+from mem0 import MemoryClient
+
+TAG = __name__
+
+class MemoryProvider(MemoryProviderBase):
+    def __init__(self, config):
+        super().__init__(config)
+        self.api_key = config.get("api_key", "")
+        if len(self.api_key) == 0 or "你" in self.api_key:
+            logger.bind(tag=TAG).error("你还没配置Mem0ai的密钥，请在配置文件中配置密钥，否则无法提供记忆服务")
+            self.use_mem0 = False
+            return
+        else:
+            self.use_mem0 = True
+        self.client = MemoryClient(api_key=self.api_key)
+
+    async def save_memory(self, msgs):
+        if not self.use_mem0:
+            return None
+        if len(msgs) < 2:
+            return None
+        
+        try:
+            # Format the content as a message list for mem0
+            messages = [
+                {"role": message.role, "content": message.content}
+                for message in msgs if message.role != "system"
+            ]
+            result = self.client.add(messages, user_id=self.role_id, output_format="v1.1")
+            logger.bind(tag=TAG).debug(f"Save memory result: {result}")
+        except Exception as e:
+            logger.bind(tag=TAG).error(f"保存记忆失败: {str(e)}")
+            return None
+
+    async def query_memory(self, query: str)-> str:
+        if not self.use_mem0:
+            return ""
+        try:
+            results = self.client.search(
+                query,
+                user_id= self.role_id,
+            )
+            memories_str = "\n".join(f"- {entry['memory']}" for entry in results)
+            logger.bind(tag=TAG).debug(f"Query results: {memories_str}")
+            return memories_str
+        except Exception as e:
+            logger.bind(tag=TAG).error(f"查询记忆失败: {str(e)}")
+            return ""