24 lines
682 B
Python
24 lines
682 B
Python
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"""SQLAlchemy async engine and session."""
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from collections.abc import AsyncGenerator
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from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from sqlalchemy.orm import DeclarativeBase
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from app.config import settings
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class Base(DeclarativeBase):
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"""Base class for all SQLAlchemy models."""
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pass
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engine = create_async_engine(settings.DATABASE_URL, echo=False, future=True)
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async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
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async def get_db() -> AsyncGenerator[AsyncSession, None]:
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"""Dependency: yields a database session."""
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async with async_session() as session:
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yield session
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