forked from cartsnitch/cartsnitch
CartSnitch Engineer Bot
2460a00d4e
- Refactor database.py to use init_db()/close_db() lifecycle - Add create_db_engine() with pool_size=10, max_overflow=20, pool_pre_ping=True - Replace cache.py stub with real Redis client using redis.asyncio - Implement init_redis()/close_redis() with graceful error handling - Replace no-op lifespan in main.py with proper startup/shutdown - Enhance health endpoint to check DB and Redis connectivity - Add tests for database, cache, and health endpoint lifecycle Co-Authored-By: Paperclip <noreply@paperclip.ing>
61 lines
1.6 KiB
Python
61 lines
1.6 KiB
Python
"""Database session management for the API gateway."""
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from collections.abc import AsyncGenerator
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from typing import TYPE_CHECKING
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from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
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from cartsnitch_api.config import settings
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if TYPE_CHECKING:
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from sqlalchemy.engine import Engine
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_engine: "Engine | None" = None
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async_session_factory: async_sessionmaker[AsyncSession] | None = None
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def create_db_engine():
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return create_async_engine(
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settings.database_url,
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pool_size=10,
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max_overflow=20,
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pool_pre_ping=True,
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pool_recycle=3600,
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echo=False,
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)
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async def init_db() -> None:
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global _engine, async_session_factory
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_engine = create_db_engine()
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async_session_factory = async_sessionmaker(_engine, class_=AsyncSession, expire_on_commit=False)
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async def close_db() -> None:
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global _engine, async_session_factory
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if _engine is not None:
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await _engine.dispose()
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_engine = None
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async_session_factory = None
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def get_engine():
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return _engine
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async def get_db() -> AsyncGenerator[AsyncSession, None]:
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if async_session_factory is None:
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raise RuntimeError("Database not initialized. Call init_db() first.")
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async with async_session_factory() as session:
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yield session
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# Backward compatibility: module-level engine proxy that delegates to _engine
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def __getattr__(name: str):
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if name == "engine":
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if _engine is None:
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raise RuntimeError("Database not initialized. Call init_db() first.")
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return _engine
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raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
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