SQLAlchemy >= 1.4 support for aiohttp.
Project description
SQLAlchemy >= 1.4 support for aiohttp.
Install
pip install aiohttp-sqlalchemy
Example
Install aiosqlite for work with sqlite3:
pip install aiosqlite
Run this code:
from aiohttp import web
import aiohttp_sqlalchemy
from aiohttp_sqlalchemy import sa_engine, sa_middleware
from datetime import datetime
import sqlalchemy as sa
from sqlalchemy import orm
from sqlalchemy.ext.asyncio import create_async_engine
metadata = sa.MetaData()
Base = orm.declarative_base(metadata=metadata)
class Request(Base):
__tablename__ = 'requests'
id = sa.Column(sa.Integer, primary_key=True)
timestamp = sa.Column(sa.DateTime(), default=datetime.now)
async def main(request):
async with request.app['sa_main'].begin() as conn:
await conn.run_sync(Base.metadata.create_all)
async with request['sa_main'].begin():
request['sa_main'].add_all([Request()])
result = await request['sa_main'].execute(sa.select(Request))
data = {r.id: r.timestamp.isoformat() for r in result.scalars()}
return web.json_response(data)
app = web.Application(middlewares=[sa_middleware()])
engine = create_async_engine('sqlite+aiosqlite:///')
aiohttp_sqlalchemy.setup(app, [sa_engine(engine)])
app.add_routes([web.get('/', main)])
web.run_app(app)
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