Ariadne Extensions

Set of scripts and helper utilities to extend Ariadne GraphQL library

Install

pip install -e git+https://github.com/aleszoulek/ariadne-extensions.git#egg=ariadne-extensions

Features

Federation support

Support for Federation Specification

Features

1. Generate federation schema types and directives (_Any, _FieldSet, ...)
2. Implements {_service{sdl}} query
3. Detects boundary types and generates _Entities union
4. Resolve reference helpers for boundary types queried over {_entities} query

from os.path import dirname, join
from ariadne import QueryType, ObjectType, snake_case_fallback_resolvers

from ariadne_extensions import federation

query_type = QueryType()
manager = federation.FederatedManager(
    schema_sdl_file=join(dirname(__file__), 'schema.graphql'),
    query=query_type,
)

user_type = federation.FederatedObjectType('User')
photo_type = ObjectType('Photo')

@user_type.resolve_reference
def resolve_user_reference(reference):
    user_id = reference.get('id')
    return get_user_by_id(user_id)

@user_type.field('name')
def resolve_billing_account(obj, *_, id):
    return f'{obj.first_name} {obj_last_name}'

manager.add_types(user_type, photo_type)
manager.add_types(snake_case_fallback_resolvers)

schema = manager.get_schema()