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172 lines
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172 lines
5.6 KiB
ReStructuredText
|Graphene Logo| `Graphene <http://graphene-python.org>`__ |Build Status| |PyPI version| |Coverage Status|
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=========================================================================================================
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`💬 Join the community on
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Slack <https://join.slack.com/t/graphenetools/shared_invite/enQtOTE2MDQ1NTg4MDM1LTA4Nzk0MGU0NGEwNzUxZGNjNDQ4ZjAwNDJjMjY0OGE1ZDgxZTg4YjM2ZTc4MjE2ZTAzZjE2ZThhZTQzZTkyMmM>`__
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**We are looking for contributors**! Please check the
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`ROADMAP <https://github.com/graphql-python/graphene/blob/master/ROADMAP.md>`__
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to see how you can help ❤️
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Introduction
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------------
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`Graphene <http://graphene-python.org>`__ is an opinionated Python
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library for building GraphQL schemas/types fast and easily.
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- **Easy to use:** Graphene helps you use GraphQL in Python without
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effort.
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- **Relay:** Graphene has builtin support for Relay.
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- **Data agnostic:** Graphene supports any kind of data source: SQL
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(Django, SQLAlchemy), NoSQL, custom Python objects, etc. We believe
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that by providing a complete API you could plug Graphene anywhere
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your data lives and make your data available through GraphQL.
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Integrations
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------------
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Graphene has multiple integrations with different frameworks:
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+-------------------+-------------------------------------------------+
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| integration | Package |
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+===================+=================================================+
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| Django | `graphene-django <https:/ |
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| | /github.com/graphql-python/graphene-django/>`__ |
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+-------------------+-------------------------------------------------+
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| SQLAlchemy | `graphene-sqlalchemy <https://git |
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| | hub.com/graphql-python/graphene-sqlalchemy/>`__ |
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+-------------------+-------------------------------------------------+
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Also, Graphene is fully compatible with the GraphQL spec, working
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seamlessly with all GraphQL clients, such as
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`Relay <https://github.com/facebook/relay>`__,
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`Apollo <https://github.com/apollographql/apollo-client>`__ and
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`gql <https://github.com/graphql-python/gql>`__.
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Installation
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------------
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To install `graphene`, just run this command in your shell
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.. code:: bash
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pip install "graphene>=3.0"
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Examples
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--------
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Here is one example for you to get started:
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.. code:: python
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import graphene
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class Query(graphene.ObjectType):
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hello = graphene.String(description='A typical hello world')
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def resolve_hello(self, info):
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return 'World'
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schema = graphene.Schema(query=Query)
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Then Querying ``graphene.Schema`` is as simple as:
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.. code:: python
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query = '''
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query SayHello {
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hello
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}
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'''
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result = schema.execute(query)
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If you want to learn even more, you can also check the following
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`examples <examples/>`__:
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- **Basic Schema**: `Starwars example <examples/starwars>`__
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- **Relay Schema**: `Starwars Relay
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example <examples/starwars_relay>`__
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Documentation
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-------------
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Documentation and links to additional resources are available at
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https://docs.graphene-python.org/en/latest/
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Contributing
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------------
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After cloning this repo, create a
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`virtualenv <https://virtualenv.pypa.io/en/stable/>`__ and ensure
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dependencies are installed by running:
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.. code:: sh
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virtualenv venv
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source venv/bin/activate
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pip install -e ".[test]"
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Well-written tests and maintaining good test coverage is important to
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this project. While developing, run new and existing tests with:
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.. code:: sh
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py.test graphene/relay/tests/test_node.py # Single file
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py.test graphene/relay # All tests in directory
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Add the ``-s`` flag if you have introduced breakpoints into the code for
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debugging. Add the ``-v`` (“verbose”) flag to get more detailed test
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output. For even more detailed output, use ``-vv``. Check out the
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`pytest documentation <https://docs.pytest.org/en/latest/>`__ for more
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options and test running controls.
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You can also run the benchmarks with:
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.. code:: sh
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py.test graphene --benchmark-only
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Graphene supports several versions of Python. To make sure that changes
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do not break compatibility with any of those versions, we use ``tox`` to
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create virtualenvs for each Python version and run tests with that
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version. To run against all Python versions defined in the ``tox.ini``
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config file, just run:
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.. code:: sh
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tox
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If you wish to run against a specific version defined in the ``tox.ini``
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file:
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.. code:: sh
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tox -e py10
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Tox can only use whatever versions of Python are installed on your
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system. When you create a pull request, Travis will also be running the
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same tests and report the results, so there is no need for potential
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contributors to try to install every single version of Python on their
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own system ahead of time. We appreciate opening issues and pull requests
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to make graphene even more stable & useful!
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Building Documentation
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~~~~~~~~~~~~~~~~~~~~~~
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The documentation is generated using the excellent
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`Sphinx <http://www.sphinx-doc.org/>`__ and a custom theme.
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An HTML version of the documentation is produced by running:
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.. code:: sh
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make docs
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.. |Graphene Logo| image:: http://graphene-python.org/favicon.png
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.. |Build Status| image:: https://travis-ci.org/graphql-python/graphene.svg?branch=master
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:target: https://travis-ci.org/graphql-python/graphene
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.. |PyPI version| image:: https://badge.fury.io/py/graphene.svg
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:target: https://badge.fury.io/py/graphene
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.. |Coverage Status| image:: https://coveralls.io/repos/graphql-python/graphene/badge.svg?branch=master&service=github
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:target: https://coveralls.io/github/graphql-python/graphene?branch=master
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