40 lines
964 B
Python
40 lines
964 B
Python
 
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from typing 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 src.config import settings
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# Create async engine
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async_engine = create_async_engine(
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settings.database_url,
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echo=settings.debug,
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future=True,
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)
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# Create async session factory
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async_session_maker = async_sessionmaker(
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async_engine,
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class_=AsyncSession,
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expire_on_commit=False,
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)
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# Declarative base for models
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class Base(DeclarativeBase):
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pass
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# Dependency for FastAPI
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async def get_db_session() -> AsyncGenerator[AsyncSession, None]:
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"""Provide database session for FastAPI dependency injection."""
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async with async_session_maker() 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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