Metadata-Version: 2.1
Name: aiohttp-sqlalchemy
Version: 0.17.2
Summary: SQLAlchemy 1.4 / 2.0 support for aiohttp.
Home-page: https://github.com/ri-gilfanov/aiohttp-sqlalchemy
License: BSD-3-Clause
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 :: BSD 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
Provides-Extra: mysql
Provides-Extra: postgresql
Provides-Extra: sqlite
Requires-Dist: SQLAlchemy (>=1.4.18,<2.0.0)
Requires-Dist: aiohttp (>=3.7.4.post0,<4.0.0)
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
==================
|Release| |Python versions| |Downloads count| |Build status| |Test coverage| |Codacy Badge| |Documantation|

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  :alt: Release

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  :target: https://pypistats.org/packages/aiohttp-sqlalchemy
  :alt: Downloads count

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  :target: https://travis-ci.com/ri-gilfanov/aiohttp-sqlalchemy
  :alt: Build status

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  :alt: Test coverage

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  :target: https://www.codacy.com/gh/ri-gilfanov/aiohttp-sqlalchemy/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=ri-gilfanov/aiohttp-sqlalchemy&amp;utm_campaign=Badge_Grade
   :alt: Codacy Badge

.. |Documantation| image:: https://readthedocs.org/projects/aiohttp-sqlalchemy/badge/?version=latest
  :target: https://aiohttp-sqlalchemy.readthedocs.io/en/latest/?badge=latest
  :alt: Documentation

`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
  from aiohttp_sqlalchemy import sa_session

  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):
      db_session = sa_session(request)

      async with db_session.begin():
          db_session.add(MyModel())
          result = await db_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()

      bind = aiohttp_sqlalchemy.bind("sqlite+aiosqlite:///")
      aiohttp_sqlalchemy.setup(app, [bind])
      await aiohttp_sqlalchemy.init_db(app, metadata)

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

      return app


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

