Best way to keep a meteor app's mongoDB synced with an elasticsearch deployment?

Our current DB is on MLab. I know that compose use to have a service that would keep your compose mongoDB and compose elasticsearch deployment in sync automatically, but I guess that is gone.

What is the best way to go about doing this? I’ll probably host the elasticsearch on compose I guess. I saw a few atmosphere packages-- but was unsure which was the simplest to get started with. Also, I wasn’t sure if there are there any NPM packages that are easy to implement? open-sourced their transporter a while back: