Update app.py

app.py

@@ -74,6 +74,8 @@ class SentimentLog(Base):
     sentiment_score = Column(Float)
     message = Column(Text)
 
+
+engine = create_async_engine(DATABASE_URL, echo=True)
 async_session = sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
 
 async def init_db():