start

backend/app/db/base.py

@@ -0,0 +1,14 @@
+from sqlalchemy import MetaData
+from sqlalchemy.orm import DeclarativeBase
+
+NAMING_CONVENTION = {
+    "ix": "ix_%(column_0_label)s",
+    "uq": "uq_%(table_name)s_%(column_0_name)s",
+    "ck": "ck_%(table_name)s_%(constraint_name)s",
+    "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
+    "pk": "pk_%(table_name)s",
+}
+
+
+class Base(DeclarativeBase):
+    metadata = MetaData(naming_convention=NAMING_CONVENTION)

backend/app/db/session.py

@@ -0,0 +1,13 @@
+from collections.abc import AsyncIterator
+
+from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+
+from app.core.config import get_settings
+
+engine = create_async_engine(get_settings().database_url, pool_pre_ping=True)
+async_session_maker = async_sessionmaker(engine, expire_on_commit=False)
+
+
+async def get_db() -> AsyncIterator[AsyncSession]:
+    async with async_session_maker() as session:
+        yield session