How do I manage transactions asynchronously in SQLAlchemy?

How do I manage transactions asynchronously in SQLAlchemy?

To manage transactions asynchronously in SQLAlchemy, you can use the async with statement along with the AsyncSession class.

Can you provide a code example for that?

Sure! Here's a simple example:

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

engine = create_async_engine('postgresql+asyncpg://user:password@localhost/dbname')
AsyncSessionLocal = sessionmaker(bind=engine, class_=AsyncSession, expire_on_commit=False)

async def async_transaction_example():
    async with AsyncSessionLocal() as session:
        async with session.begin():
            # Your database operations here
            pass

What if I want to handle exceptions during the transaction?

You can use a try-except block within the async context to handle exceptions. Here's an updated example:

async def async_transaction_example():
    async with AsyncSessionLocal() as session:
        try:
            async with session.begin():
                # Your database operations here
                pass
        except Exception as e:
            print(f'An error occurred: {e}')