Quart-DB

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Quart-DB is a Quart extension that provides managed connection(s) to postgresql or sqlite database(s).

Quickstart

Quart-DB is used by associating it with an app and a DB (via a URL) and then utilising the g.connection connection,

.. code-block:: python

from quart import g, Quart, websocket from quart_db import QuartDB

app = Quart(name) db = QuartDB(app, url="postgresql://user:pass@localhost:5432/db_name")

@app.get("/int:id") async def get_count(id: int): result = await g.connection.fetch_val( "SELECT COUNT(*) FROM tbl WHERE id = :id", {"id": id}, ) return {"count": result}

@app.post("/") async def set_with_transaction(): async with g.connection.transaction(): await db.execute("UPDATE tbl SET done = :done", {"done": True}) ... return {}

@app.get("/explicit") async def explicit_usage(): async with db.connection() as connection: ...

Contributing

Quart-DB is developed on GitHub <https://github.com/pgjones/quart-db>. If you come across an issue, or have a feature request please open an issue <https://github.com/pgjones/quart-db/issues>. If you want to contribute a fix or the feature-implementation please do (typo fixes welcome), by proposing a merge request <https://github.com/pgjones/quart-db/merge_requests>_.

Testing

The best way to test Quart-DB is with `Tox
<https://tox.readthedocs.io>`_,

.. code-block:: console

    $ pip install tox
    $ tox

this will check the code style and run the tests.

Help
----

The Quart-DB `documentation
<https://quart-db.readthedocs.io/en/latest/>`_ is the best places to
start, after that try searching `stack overflow
<https://stackoverflow.com/questions/tagged/quart>`_ or ask for help
`on gitter <https://gitter.im/python-quart/lobby>`_. If you still
can't find an answer please `open an issue
<https://github.com/pgjones/quart-db/issues>`_.


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