first commit

app/database.py

@@ -0,0 +1,33 @@
+from collections.abc import AsyncGenerator
+
+from sqlalchemy.ext.asyncio import (
+    AsyncSession,
+    async_sessionmaker,
+    create_async_engine,
+)
+from sqlalchemy.orm import DeclarativeBase
+
+from app.config import settings
+
+engine = create_async_engine(
+    settings.database_url,
+    pool_size=settings.db_pool_size,
+    pool_timeout=settings.db_pool_timeout,
+    pool_pre_ping=True,
+    echo=False,
+)
+
+async_session_factory = async_sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+async def get_session() -> AsyncGenerator[AsyncSession, None]:
+    async with async_session_factory() as session:
+        yield session