optional wrapping the middleware into promises

[rapthead]

Pull request for issue that we discuss earlier. graphql-python/graphene#423

With this changes we can disable wrapping in promises this way:

    return schema.execute('''
            query {
                field
            }
        ''',
        middleware=MiddlewareManager(
            SomeMiddleware(),
            wrap_in_promise=False,
        )
    )

[jameswyse]

Does this work with graphene-django? How do you specify the option there?

[rapthead]

I didn't use graphene-django, but i sure that this should work nice with it.
It uses same execution api, so you can use code from top comment.
But if you don't use custom middleware, overhead problem irrelevant for you.

[alonroth]

@rapthead Can you please elaborate on what this new "wrap_in_promise=False" actually supposed to fix?
I'm using Middleware to authenticate the GraphQL calls and its authenticating each connection & node in the response causing a huge overhead.

I was wondering if your fix relevant to my problem but I couldn't make it work for me...

Thanks!

[msmfco]

@alonroth`wrap_in_promise forces your middleware function to return a promise, but remove the need for graphql-python to wrap every middleware returned value into a promise.
If your middlewares are already returning promises, then it's a good optimization.