除去多的close

main.py

@@ -92,7 +92,7 @@ def handle_follow(event):
         line_bot_api.reply_message(
             event.reply_token,
             TextSendMessage(text='歡迎加入好友'))
-    db.close()
+
 
 # message handler
 @handler.add(MessageEvent, message=TextMessage)
@@ -199,7 +199,7 @@ def collection(userid):
         return nfts_all
         db.close()
 
-    db.close()
+
 
 # receive handler
 @app.get("/receive/{userid}")
@@ -251,7 +251,7 @@ async def receive(userModel : models.TransactionNft):
     else:
         db.close()
         return {'msg': 'nft not found'}
-    db.close()
+
     return {'msg': 'OK'}
 
 # shop handler