How do I set up SQLAlchemy with async support?

How do I set up SQLAlchemy with async support?

To set up SQLAlchemy with async support, you'll need to install the asyncpg driver and use the asyncio event loop.

What packages do I need to install?

You need to install SQLAlchemy, asyncpg, and asyncio. You can do this using pip: pip install sqlalchemy asyncpg.

Can you show me a basic example of an async query?

Sure! Here's a simple example:

import asyncio
from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession
from sqlalchemy.orm import sessionmaker

DATABASE_URL = 'postgresql+asyncpg://user:password@localhost/dbname'

engine = create_async_engine(DATABASE_URL, echo=True)
AsyncSessionLocal = sessionmaker(bind=engine, class_=AsyncSession)

async def get_data():
    async with AsyncSessionLocal() as session:
        result = await session.execute('SELECT * FROM my_table')
        return result.scalars().all()

asyncio.run(get_data())

What are the benefits of using async with SQLAlchemy?

Using async with SQLAlchemy allows for non-blocking database operations, which can improve performance in I/O-bound applications.