| """ | |
| Database connection and session management. | |
| Env vars: DATABASE_URL | |
| """ | |
| from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker | |
| from backend.app.core.config import settings | |
| engine = create_async_engine(settings.DATABASE_URL, echo=settings.DEBUG, pool_size=10) | |
| async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False) | |
| async def get_session() -> AsyncSession: | |
| async with async_session() as session: | |
| yield session | |
| async def init_db(): | |
| from backend.app.models.schemas import Base | |
| async with engine.begin() as conn: | |
| await conn.run_sync(Base.metadata.create_all) | |