As Apollo in version 0.9 deprecates addGraphQLSubscriptions in favor of Apollo Link (https://dev-blog.apollodata.com/apollo-link-the-modular-graphql-network-stack-3b6d5fcf9244) the solution was to use the old version (0.8.3) of the

subscriptions-transport-ws

package. Is Apollo Link currently supported by graph.cool, or are some changes necessary to support it?