Subscriptions

This is a really nice example.

I would like to try and extend it and make a few PR's and am curious about a few things

Subscriptions ? This is still evolving with graphql but I think it would be very useful to add this.

Codegen of db.
The new gnorm project looks pretty nice. It's a db first approach which might seem weird considering graphql is top down approach but I like aging the flexibility in the middle of you know what I mean.