074787f067
Features: - FastAPI backend with stocks, news, signals, watchlist, analytics endpoints - React frontend with TailwindCSS dark mode trading dashboard - Celery workers for news fetching, sentiment analysis, pattern detection - TimescaleDB schema for time-series stock data - Docker Compose setup for all services - OpenAI integration for sentiment analysis
80 lines
1.7 KiB
Python
80 lines
1.7 KiB
Python
"""
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Database Configuration and Session Management
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"""
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from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
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from sqlalchemy.orm import declarative_base
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker
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from app.core.config import settings
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# Async engine for FastAPI
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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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pool_pre_ping=True,
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pool_size=10,
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max_overflow=20,
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)
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# Async session factory
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AsyncSessionLocal = 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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autocommit=False,
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autoflush=False,
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)
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# Sync engine for Celery workers
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sync_engine = create_engine(
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settings.DATABASE_URL_SYNC,
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echo=settings.DEBUG,
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pool_pre_ping=True,
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pool_size=5,
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max_overflow=10,
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)
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# Sync session factory
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SyncSessionLocal = sessionmaker(
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sync_engine,
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autocommit=False,
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autoflush=False,
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)
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# Base class for models
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Base = declarative_base()
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async def init_db():
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"""Initialize database (create tables if needed)."""
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# Tables are created by init.sql, but we can add migrations here
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pass
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async def get_db() -> AsyncSession:
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"""Dependency for getting async database session."""
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async with AsyncSessionLocal() 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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def get_sync_db():
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"""Get sync database session for Celery workers."""
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db = SyncSessionLocal()
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try:
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yield db
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db.commit()
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except Exception:
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db.rollback()
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raise
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finally:
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db.close()
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