Is there any way to have the user field populated on a create<Item> mutation automatically using the current session user or do I need to provide the user id in the mutation every time?

@jschloer https://github.com/graphcool/feature-requests/issues/204

Ok. So once that gets implemented you could then write a function to pull it out of the context and add it to the mutation?

Yes, and there's also a FR somewhere for adding createdBy/updatedBy to createdAt/updatedAt, and have them filled automagically