Metadata-Version: 2.1
Name: aiohttp-sqlalchemy
Version: 0.25.0
Summary: SQLAlchemy 1.4 / 2.0 support for aiohttp.
Home-page: https://github.com/ri-gilfanov/aiohttp-sqlalchemy
License: MIT
Keywords: aiohttp,sqlalchemy,asyncio
Author: Ruslan Ilyasovich Gilfanov
Author-email: ri.gilfanov@yandex.ru
Requires-Python: >=3.7,<4.0
Classifier: Development Status :: 5 - Production/Stable
Classifier: Framework :: AsyncIO
Classifier: License :: OSI Approved :: MIT License
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Topic :: Database
Classifier: Topic :: Database :: Front-Ends
Classifier: Topic :: Internet
Classifier: Topic :: Internet :: WWW/HTTP
Classifier: Topic :: Software Development
Classifier: Topic :: Software Development :: Libraries
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Typing :: Typed
Provides-Extra: mysql
Provides-Extra: postgresql
Provides-Extra: sqlite
Requires-Dist: SQLAlchemy (>=1.4.21,<2.0.0)
Requires-Dist: aiohttp (>=3.7.4.post0,<4.0.0)
Requires-Dist: aiohttp-things (>=0.8.0)
Requires-Dist: aiomysql (>=0.0.21); extra == "mysql"
Requires-Dist: aiosqlite (>=0.17.0); extra == "sqlite"
Requires-Dist: asyncpg (>=0.23.0); extra == "postgresql"
Project-URL: Documentation, https://aiohttp-sqlalchemy.readthedocs.io/
Project-URL: Repository, https://github.com/ri-gilfanov/aiohttp-sqlalchemy
Description-Content-Type: text/x-rst

==================
aiohttp-sqlalchemy
==================
|ReadTheDocs| |PyPI release| |PyPI downloads| |License| |Python versions| |GitHub CI| |Codecov| |Codacy|

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  :alt: Release

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  :alt: PyPI downloads count

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   :alt: Codacy code quality

`SQLAlchemy 1.4 / 2.0 <https://www.sqlalchemy.org/>`_ support for `AIOHTTP
<https://docs.aiohttp.org/>`_.

The library provides the next features:

* initializing asynchronous sessions through a middlewares;
* initializing asynchronous sessions through a decorators;
* simple access to one asynchronous session by default key;
* preventing attributes from being expired after commit by default;
* support different types of request handlers;
* support nested applications.


Documentation
-------------
https://aiohttp-sqlalchemy.readthedocs.io


Installation
------------
::

    pip install aiohttp-sqlalchemy


Simple example
--------------
Install ``aiosqlite`` for work with sqlite3: ::

  pip install aiosqlite

Copy and paste this code in a file and run:

.. code-block:: python

  from datetime import datetime

  import sqlalchemy as sa
  from aiohttp import web
  from sqlalchemy import orm

  import aiohttp_sqlalchemy as ahsa

  metadata = sa.MetaData()
  Base = orm.declarative_base(metadata=metadata)


  class MyModel(Base):
      __tablename__ = 'my_table'

      pk = sa.Column(sa.Integer, primary_key=True)
      timestamp = sa.Column(sa.DateTime(), default=datetime.now)


  async def main(request):
      sa_session = ahsa.get_session(request)

      async with sa_session.begin():
          sa_session.add(MyModel())
          result = await sa_session.execute(sa.select(MyModel))
          result = result.scalars()

      data = {
          instance.pk: instance.timestamp.isoformat()
          for instance in result
      }
      return web.json_response(data)


  async def app_factory():
      app = web.Application()

      ahsa.setup(app, [
          ahsa.bind('sqlite+aiosqlite:///'),
      ])
      await ahsa.init_db(app, metadata)

      app.add_routes([web.get('/', main)])
      return app


  if __name__ == '__main__':
      web.run_app(app_factory())

