Sangria in Scala has a mechanism called "Deferred" that lets you specify that it should ask you to resolve objects of a certain type all at once at the end, and

Sangria in Scala has a mechanism called "Deferred" that lets you specify that it should ask you to resolve objects of a certain type all at once at the end, and you would do a single SQL query per object type there. If the JavaScript implementation doesn't have something like this, perhaps it can be hacked on top.