first commit

database.py

@@ -0,0 +1,36 @@
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
+from sqlalchemy.engine import URL
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.orm import declarative_base
+
+
+from config import load_config
+
+
+ApplicationConfig = load_config()
+
+
+url = URL.create(
+    drivername="postgresql+asyncpg",
+    username=ApplicationConfig.POSTGRES_USERNAME,
+    password=ApplicationConfig.POSTGRES_PW,
+    host=ApplicationConfig.POSTGRES_SERVER,
+    database=ApplicationConfig.POSTGRES_DBNAME00,
+    port=ApplicationConfig.POSTGRES_PORT
+)
+
+engine = create_async_engine(url, echo=False)
+
+AsyncSessionLocal = sessionmaker(
+    engine, class_=AsyncSession, expire_on_commit=False
+)
+
+Base = declarative_base()
+
+# Dependency to get DB session
+async def get_db() -> AsyncSession:
+    async with AsyncSessionLocal() as session:
+        try:
+            yield session
+        finally:
+            await session.close()