any example to use graphql subscription using apollo-angular with having ruby server?

[albiorixvimal]

I am trying to find a way to integrate a GraphQL subscription and find a library graphql-ruby-client. is this the right solution to use on the angular side? which can be used for ruby on the server side using action cable?

I am using apollo-angular for mutation and query GraphQL with an existing project.
I didn't find any example regarding subscription using apollo-angular. does anybody have any idea about it how I use a subscription using the apollo-angular library with having ruby and action cable implemented on the backend?