Adds GraphQL support to your Flask application.

Just use the GraphQLView view from flask_graphql

from flask import Flask from flask_graphql import GraphQLView from schema import schema app = Flask(__name__) app.add_url_rule('/graphql', view_func=GraphQLView.as_view( 'graphql', schema=schema, graphiql=True, )) # Optional, for adding batch query support (used in Apollo-Client) app.add_url_rule('/graphql/batch', view_func=GraphQLView.as_view( 'graphql', schema=schema, batch=True )) if __name__ == '__main__': app.run()

This will add /graphql endpoint to your app and enable the GraphiQL IDE.

If you are using the Schema type of Graphene library, be sure to use the graphql_schema attribute to pass as schema on the GraphQLView view. Otherwise, the GraphQLSchema from graphql-core is the way to go.

More info at Graphene v3 release notes and GraphQL-core 3 usage.

• schema: The GraphQLSchema object that you want the view to execute when it gets a valid request.
• context: A value to pass as the context_value to graphql execute function. By default is set to dict with request object at key request.
• root_value: The root_value you want to provide to graphql execute.
• pretty: Whether or not you want the response to be pretty printed JSON.
• graphiql: If True, may present GraphiQL when loaded directly from a browser (a useful tool for debugging and exploration).
• graphiql_version: The graphiql version to load. Defaults to "1.0.3".
• graphiql_template: Inject a Jinja template string to customize GraphiQL.
• graphiql_html_title: The graphiql title to display. Defaults to "GraphiQL".
• batch: Set the GraphQL view as batch (for using in Apollo-Client or ReactRelayNetworkLayer)
• middleware: A list of graphql middlewares.
• encode: the encoder to use for responses (sensibly defaults to graphql_server.json_encode).
• format_error: the error formatter to use for responses (sensibly defaults to graphql_server.default_format_error.
• subscriptions: The GraphiQL socket endpoint for using subscriptions in graphql-ws.
• headers: An optional GraphQL string to use as the initial displayed request headers, if not provided, the stored headers will be used.
• default_query: An optional GraphQL string to use when no query is provided and no stored query exists from a previous session. If not provided, GraphiQL will use its own default query.
• header_editor_enabled: An optional boolean which enables the header editor when true. Defaults to false.
• should_persist_headers: An optional boolean which enables to persist headers to storage when true. Defaults to false.

You can also subclass GraphQLView and overwrite get_root_value(self, request) to have a dynamic root value per request.

class UserRootValue(GraphQLView): def get_root_value(self, request): return request.user

Since v3, flask-graphql code lives at graphql-server repository to keep any breaking change on the base package on sync with all other integrations. In order to contribute, please take a look at CONTRIBUTING.md.