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GraphQL Framework for Python

Project description

Graphene is a Python library for building GraphQL schemas/types fast and easily.

  • Easy to use: Graphene helps you use GraphQL in Python without effort.
  • Relay: Graphene has builtin support for Relay
  • Django: Automatic Django model mapping to Graphene Types. Check a fully working Django implementation

Graphene also supports SQLAlchemy!

What is supported in this Python version? Everything: Interfaces, ObjectTypes, Scalars, Unions and Relay (Nodes, Connections), in addition to queries, mutations and subscriptions.

NEW!: Try graphene online

Installation

For instaling graphene, just run this command in your shell

pip install graphene
# In case of need Django model support
pip install graphene[django]
# Or in case of need SQLAlchemy support
pip install graphene[sqlalchemy]

Examples

Here is one example for get you started:

class Query(graphene.ObjectType):
    hello = graphene.String(description='A typical hello world')
    ping = graphene.String(description='Ping someone',
                           to=graphene.String())

    def resolve_hello(self, args, info):
        return 'World'

    def resolve_ping(self, args, info):
        return 'Pinging {}'.format(args.get('to'))

schema = graphene.Schema(query=Query)

Then Querying graphene.Schema is as simple as:

query = '''
    query SayHello {
      hello
      ping(to:"peter")
    }
'''
result = schema.execute(query)

If you want to learn even more, you can also check the following examples:

Contributing

After cloning this repo, ensure dependencies are installed by running:

python setup.py install

After developing, the full test suite can be evaluated by running:

python setup.py test # Use --pytest-args="-v -s" for verbose mode

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