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Minimal async fails #19

@jack-burridge-tp

Description

@jack-burridge-tp

I have a minimal async example

from graphene import ObjectType, String, Schema
from graphql.execution.executors.asyncio import AsyncioExecutor
from sanic import Sanic
from sanic_graphql import GraphQLView


class Query(ObjectType):
    hello = String(name=String(default_value="stranger"))
    goodbye = String()

    async def resolve_hello(root, info, name):
        return f'Hello {name}!'

    def resolve_goodbye(root, info):
        return 'See ya!'


schema = Schema(query=Query)

app = Sanic(__name__)
app.debug = True


@app.listener('before_server_start')
def init_graphql(app, loop):
    app.add_route(GraphQLView.as_view(schema=schema, executor=AsyncioExecutor(loop=loop)), '/graphql')


if __name__ == '__main__':
    app.run()

I can do a synchronous resolve

{
  goodbye
}

But running

{
  hello
}

Fails and the server stops, I'm assuming something is blocking the event loop but I can't find where

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