[adamnemecek]

But you have to do it manually. GraphQL removes that pain (or at least that's my understanding:.

[badlucklottery]

It removes the API design, versioning, etc. pain which is probably huge in an organization as large as facebook.

But there's still going to be a decent bit of backend tuning which in my experience is the hard part (unless the organization is so dysfunctional new API version design meetings descend into a hostage exchange).