I think the use of then() makes sense as this is an async call and not serial. So the function passed to then() is a completion handler, i.e. it is run when the

I think the use of then() makes sense as this is an async call and not serial. So the function passed to then() is a completion handler, i.e. it is run when the call is complete. So do this call, and then when its finsihed do this. I like it.