example of setting up graphql with tartiflette and cors

tartiflette with cors.py

import os
import logging
import logging.config
import aiohttp_cors
​
from aiohttp import web
from tart_test.helpers import config
from tartiflette_aiohttp import register_graphql_handlers
​
​
logging.config.dictConfig(config.loader("logging.yaml"))
log = logging.getLogger(__name__)
​
​
async def on_startup(app):
    cors = aiohttp_cors.setup(app, defaults={"*": aiohttp_cors.ResourceOptions(allow_credentials=True, expose_headers="*", allow_headers="*", allow_methods=["GET", "POST", "OPTIONS"])})
​
    for resource in app.router.resources():
        cors.add(resource)
​
​
def run():
    app = web.Application()
    
    app.on_startup.append(on_startup)
​
    web.run_app(
        register_graphql_handlers(
            app=app,
            engine_sdl=f"{os.path.dirname(os.path.abspath(__file__))}/sdl",
            engine_modules=[
                "tart_test.resolvers.query",
                "tart_test.resolvers.mutation",
                "tart_test.resolvers.subscription",
                "tart_test.directives.auth",
                "tart_test.directives.rate_limiting"
            ],
            subscription_ws_endpoint="/ws",
            executor_http_endpoint="/graphql",
            executor_http_methods=["POST"],
            graphiql_enabled=True
        )
    )