Microservices using Apollo


I am trying to decide the best way to build microservices using apollo.
I recently came across this site. https://www.graphqlhub.com/playground

If you attempt to write a query you’ll notice the first thing you get is a list of services.
hn, twitter, graphqlhub etc …

Once you are nested within that service you can then write queries against that service.
I like how this keeps everything at one end point.

My question is how would one implement this with apollo ?

Thank you in advance.