AI & Python Engineering Blueprints | The Lab

import asyncio
from sqlalchemy.ext.asyncio import create_async_engine

# Optimized connection pool for high-concurrency
class DatabaseManager:
    def __init__(self, db_url: str):
        self.engine = create_async_engine(
            db_url,
            pool_size=20,
            max_overflow=10,
            pool_pre_ping=True
        )

    async def get_session(self):
        """Yields a highly available session."""
        async with self.engine.begin() as conn:
            yield conn
            
    # ... security middleware logic below