Adds GraphQL support to your aiohttp application.

To install the integration with aiohttp, run the below command on your terminal.

pip install graphql-server[aiohttp]

Use the GraphQLView view from graphql_server.aiohttp

from aiohttp import web
from graphql_server.aiohttp import GraphQLView

from schema import schema

app = web.Application()

GraphQLView.attach(app, schema=schema, graphiql=True)

# Optional, for adding batch query support (used in Apollo-Client)
GraphQLView.attach(app, schema=schema, batch=True, route_path="/graphql/batch")

if __name__ == '__main__':
    web.run_app(app)

This will add /graphql endpoint to your app (customizable by passing route_path='/mypath' to GraphQLView.attach) and enable the GraphiQL IDE.

Note: GraphQLView.attach is just a convenience function, and the same functionality can be achieved with

gql_view = GraphQLView(schema=schema, graphiql=True)
app.router.add_route('*', '/graphql', gql_view, name='graphql')

It's worth noting that the the "view function" of GraphQLView is contained in GraphQLView.__call__. So, when you create an instance, that instance is callable with the request object as the sole positional argument. To illustrate:

gql_view = GraphQLView(schema=Schema, **kwargs)
gql_view(request)  # <-- the instance is callable and expects a `aiohttp.web.Request` object.

• schema: The GraphQL schema object that you want the view to execute when it gets a valid request. Accepts either an object of type GraphQLSchema from graphql-core or Schema from graphene. For Graphene v3, passing either schema: graphene.Schema or schema.graphql_schema is allowed.
• 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 "2.2.0".
• graphiql_template: Inject a Jinja template string to customize GraphiQL.
• graphiql_html_title: The graphiql title to display. Defaults to "GraphiQL".
• jinja_env: Sets jinja environment to be used to process GraphiQL template. If Jinja’s async mode is enabled (by enable_async=True), uses Template.render_async instead of Template.render. If environment is not set, fallbacks to simple regex-based renderer.
• batch: Set the GraphQL view as batch (for using in Apollo-Client or ReactRelayNetworkLayer)
• middleware: A list of graphql middlewares.
• validation_rules: A list of graphql validation rules.
• execution_context_class: Specifies a custom execution context class.
• max_age: Sets the response header Access-Control-Max-Age for preflight requests.
• 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.
• enable_async: whether async mode will be enabled.
• 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.

See CONTRIBUTING.md