34 lines
862 B
Python
34 lines
862 B
Python
"""Database engine, session factory, and Base."""
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from __future__ import annotations
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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.core.config import settings
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engine = create_async_engine(settings.DATABASE_URL, echo=settings.DEBUG)
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async_session_factory = async_sessionmaker(
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engine,
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class_=AsyncSession,
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expire_on_commit=False,
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)
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class Base(DeclarativeBase):
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pass
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async def get_db() -> AsyncSession: # type: ignore[misc]
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"""FastAPI dependency that yields an async DB session."""
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async with async_session_factory() as session:
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try:
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yield session
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await session.commit()
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except Exception:
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await session.rollback()
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raise
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finally:
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await session.close()
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