https://github.com/pyeve/eve-sqlalchemy

SQLAlchemy data layer for Eve-powered RESTful APIs
https://github.com/pyeve/eve-sqlalchemy

flask python rest sqlalchemy

Last synced: 22 days ago
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SQLAlchemy data layer for Eve-powered RESTful APIs

• Host: GitHub
• URL: https://github.com/pyeve/eve-sqlalchemy
• Owner: pyeve
• License: other
• Created: 2015-01-06T01:47:02.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2024-09-11T10:20:44.000Z (about 2 months ago)
• Last Synced: 2024-09-29T11:45:26.109Z (about 1 month ago)
• Topics: flask, python, rest, sqlalchemy
• Language: Python
• Homepage: http://eve-sqlalchemy.readthedocs.io
• Size: 415 KB
• Stars: 232
• Watchers: 22
• Forks: 70
• Open Issues: 43
• Metadata Files:
  • Readme: README.rst
  • Changelog: CHANGES
  • Contributing: CONTRIBUTING.rst
  • License: LICENSE
  • Authors: AUTHORS

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• starred-awesome - eve-sqlalchemy - SQLAlchemy data layer for Eve-powered RESTful APIs (Python)

README

        
Eve-SQLAlchemy extension

========================

.. image:: https://travis-ci.org/pyeve/eve-sqlalchemy.svg?branch=master

   :target: https://travis-ci.org/pyeve/eve-sqlalchemy

Powered by Eve, SQLAlchemy and good intentions this extension allows

to effortlessly build and deploy highly customizable, fully featured

RESTful Web Services with SQL-based backends.

Maintenance Notice

------------------

As of some years ago, Eve-SQLAlchemy has been effectively unmaintained. I am no

longer actively using it, which makes it increasingly difficult to find the

time for even small updates. If anyone is interested in taking over maintenance

of Eve-SQLAlchemy, please reach out to me.

Eve-SQLAlchemy is simple

------------------------

The following code blocks are excerpts of ``examples/one_to_many`` and should

give you an idea of how Eve-SQLAlchemy is used. A complete working example can

be found there. If you are not familiar with `Eve `_

and `SQLAlchemy `_, it is recommended to read up

on them first.

For this example, we declare two SQLAlchemy mappings (from ``domain.py``):

.. code-block:: python

    class Parent(BaseModel):

        __tablename__ = 'parent'

        id = Column(Integer, primary_key=True)

        children = relationship("Child")

    class Child(BaseModel):

        __tablename__ = 'child'

        id = Column(Integer, primary_key=True)

        parent_id = Column(Integer, ForeignKey('parent.id'))

As for Eve, a ``settings.py`` is used to configure our API. Eve-SQLAlchemy,

having access to a lot of metadata from your models, can automatically generate

a great deal of the `DOMAIN` dictionary for you:

.. code-block:: python

    DEBUG = True

    SQLALCHEMY_DATABASE_URI = 'sqlite://'

    SQLALCHEMY_TRACK_MODIFICATIONS = False

    RESOURCE_METHODS = ['GET', 'POST']

    DOMAIN = DomainConfig({

        'parents': ResourceConfig(Parent),

        'children': ResourceConfig(Child)

    }).render()

Finally, running our application server is easy (from ``app.py``):

.. code-block:: python

    app = Eve(validator=ValidatorSQL, data=SQL)

    db = app.data.driver

    Base.metadata.bind = db.engine

    db.Model = Base

    # create database schema on startup and populate some example data

    db.create_all()

    db.session.add_all([Parent(children=[Child() for k in range(n)])

                        for n in range(10)])

    db.session.commit()

    # using reloader will destroy the in-memory sqlite db

    app.run(debug=True, use_reloader=False)

The API is now live, ready to be consumed:

.. code-block:: console

    $ curl -s http://localhost:5000/parents | python -m json.tool

.. code-block:: json

    {

        "_items": [

            {

                "_created": "Sun, 22 Oct 2017 07:58:28 GMT",

                "_etag": "f56d7cb013bf3d8449e11e8e1f0213f5efd0f07d",

                "_links": {

                    "self": {

                        "href": "parents/1",

                        "title": "Parent"

                    }

                },

                "_updated": "Sun, 22 Oct 2017 07:58:28 GMT",

                "children": [],

                "id": 1

            },

            {

                "_created": "Sun, 22 Oct 2017 07:58:28 GMT",

                "_etag": "dd1698161cb6beef04f564b2e18804d4a7c4330d",

                "_links": {

                    "self": {

                        "href": "parents/2",

                        "title": "Parent"

                    }

                },

                "_updated": "Sun, 22 Oct 2017 07:58:28 GMT",

                "children": [

                    1

                ],

                "id": 2

            },

            "..."

        ],

        "_links": {

            "parent": {

                "href": "/",

                "title": "home"

            },

            "self": {

                "href": "parents",

                "title": "parents"

            }

        },

        "_meta": {

            "max_results": 25,

            "page": 1,

            "total": 10

        }

    }

All you need to bring your API online is a database, a configuration

file (defaults to ``settings.py``) and a launch script.  Overall, you

will find that configuring and fine-tuning your API is a very simple

process.

Eve-SQLAlchemy is thoroughly tested under Python 2.7-3.7 and PyPy.

Documentation

-------------

The offical project documentation can be accessed at

`eve-sqlalchemy.readthedocs.org

`_. For full working examples,

especially regarding different relationship types, see the ``examples``

directory in this repository.